Illinois

Illinois

IL

Chicago

Population: Chicago, the largest city in Illinois, has over 2.7 million residents.
Area: Chicago covers approximately 234 square miles.
Zip Codes: Chicago has numerous zip codes, including 60601–60661.
Area Codes: 312, 773, 872
County Affiliated: Cook County
Latitude: 41.8781° N
Longitude: 87.6298° W

Chicago is a bustling metropolis known for its diverse neighborhoods, iconic architecture, and cultural attractions. Willis Tower (formerly Sears Tower) is a renowned skyscraper in the city’s skyline, offering observation decks with panoramic views of the city and Lake Michigan. Millennium Park is a sprawling urban park featuring the famous Cloud Gate sculpture, also known as “The Bean,” as well as gardens, art installations, and outdoor performance venues. Navy Pier is a popular entertainment destination along Lake Michigan, offering shops, restaurants, amusement rides, boat tours, and fireworks displays.

Aurora

Population: Aurora, located outside Chicago, has over 200,000 residents.
Area: Aurora covers approximately 45.8 square miles.
Zip Codes: Aurora has various zip codes, including 60502, 60503, 60504.
Area Codes: 630, 331
County Affiliated: Kane County, DuPage County, Will County
Latitude: 41.7606° N
Longitude: 88.3201° W

Aurora is a diverse city known for its historic downtown, outdoor recreation, and cultural attractions. Paramount Theatre is a historic theater in downtown Aurora, known for its Art Deco architecture and hosting Broadway-quality productions, concerts, and events. Phillips Park is a scenic urban park offering walking trails, a zoo, a golf course, botanical gardens, and a sunken garden with seasonal flower displays. SciTech Hands-On Museum is an interactive science museum featuring exhibits and educational programs on topics such as physics, astronomy, engineering, and technology, catering to visitors of all ages.

Rockford

Population: Rockford, situated in northern Illinois, has over 150,000 residents.
Area: Rockford covers approximately 61.9 square miles.
Zip Codes: Rockford has various zip codes, including 61101, 61102, 61103.
Area Codes: 815
County Affiliated: Winnebago County
Latitude: 42.2711° N
Longitude: 89.0939° W

Rockford is a vibrant city known for its cultural institutions, outdoor recreation, and industrial heritage. Anderson Japanese Gardens is a serene botanical garden featuring Japanese-style landscapes, waterfalls, ponds, and walking paths, offering opportunities for relaxation and meditation. Nicholas Conservatory & Gardens is a botanical garden and greenhouse complex showcasing tropical plants, seasonal flower displays, and outdoor sculptures, as well as educational programs and events. Discovery Center Museum is a hands-on science museum offering interactive exhibits, educational workshops, and STEM programs for children and families, focusing on topics such as physics, chemistry, and natural history.

Joliet

Population: Joliet, located southwest of Chicago, has over 147,000 residents.
Area: Joliet covers approximately 62.1 square miles.
Zip Codes: Joliet has various zip codes, including 60431, 60432, 60433.
Area Codes: 815, 779
County Affiliated: Will County
Latitude: 41.5250° N
Longitude: 88.0817° W

Joliet is a historic city known for its industrial heritage, cultural attractions, and recreational opportunities. Joliet Prison is a historic prison complex featured in movies and television shows, offering guided tours and events showcasing its history and architecture. Rialto Square Theatre is a historic theater and performing arts venue known for its lavish interior, including a grand lobby and a domed ceiling, hosting concerts, Broadway shows, and special events. Chicagoland Speedway is a NASCAR racetrack and entertainment complex featuring racing events, concerts, and festivals, as well as amenities such as camping facilities and dining options.

Naperville

Population: Naperville, located west of Chicago, has over 147,000 residents.
Area: Naperville covers approximately 39.3 square miles.
Zip Codes: Naperville has various zip codes, including 60540, 60563, 60564.
Area Codes: 630, 331
County Affiliated: DuPage County, Will County
Latitude: 41.7508° N
Longitude: 88.1535° W

Naperville is a suburban city known for its picturesque downtown, excellent schools, and family-friendly atmosphere. Naperville Riverwalk is a scenic pathway along the DuPage River, featuring bridges, fountains, sculptures, and gardens, as well as outdoor art installations and recreational amenities such as paddleboat rentals and picnic areas. Naper Settlement is a living history museum showcasing historic buildings, artifacts, and exhibits on the early history of Naperville and pioneer life in the Midwest, offering guided tours, educational programs, and special events. Centennial Beach is a historic outdoor swimming pool located along the Riverwalk, featuring sand beaches, diving boards, slides, and a water playground, as well as lifeguard-supervised swimming areas and concessions.

Springfield

Population: Springfield, the capital of Illinois, has over 115,000 residents.
Area: Springfield covers approximately 60.3 square miles.
Zip Codes: Springfield has various zip codes, including 62701, 62702, 62703.
Area Codes: 217
County Affiliated: Sangamon County
Latitude: 39.7817° N
Longitude: 89.6501° W

Springfield is a historic city known for its association with Abraham Lincoln, state government institutions, and cultural attractions. Lincoln Home National Historic Site is the preserved home of Abraham Lincoln and his family, offering guided tours, exhibits, and ranger-led programs on the life and legacy of the 16th President of the United States. Illinois State Capitol is the seat of government for the state of Illinois, featuring a distinctive domed structure and historic architecture, as well as public tours and educational exhibits on Illinois history and government. Old State Capitol State Historic Site is a historic building that served as the state capitol from 1839 to 1876, featuring exhibits, artifacts, and interactive displays on Illinois politics, law, and history during the Lincoln era.

Peoria

Population: Peoria, located in central Illinois, has over 110,000 residents.
Area: Peoria covers approximately 48.0 square miles.
Zip Codes: Peoria has various zip codes, including 61602, 61603, 61604.
Area Codes: 309
County Affiliated: Peoria County
Latitude: 40.6936° N
Longitude: 89.5880° W

Peoria is a historic city known for its riverfront, cultural institutions, and manufacturing heritage. Peoria Riverfront Museum is a cultural institution showcasing exhibits on art, history, science, and regional culture, featuring galleries, interactive displays, a planetarium, and a giant screen theater. Caterpillar Visitors Center is a museum and interactive facility operated by Caterpillar Inc., showcasing the history, products, and innovations of the global manufacturer, as well as educational programs and exhibits on engineering and technology. Grandview Drive is a scenic roadway and park offering panoramic views of the Illinois River Valley, as well as historic homes, parks, and overlooks, known as “the world’s most beautiful drive.”

Elgin

Population: Elgin, located northwest of Chicago, has over 100,000 residents.
Area: Elgin covers approximately 37.7 square miles.
Zip Codes: Elgin has various zip codes, including 60120, 60123, 60124.
Area Codes: 847, 224
County Affiliated: Kane County, Cook County
Latitude: 42.0354° N
Longitude: 88.2826° W

Elgin is a diverse city known for its historic architecture, cultural amenities, and recreational opportunities. Elgin Symphony Orchestra is a professional orchestra based in Elgin, performing classical and contemporary music concerts at the Hemmens Cultural Center, featuring renowned guest artists and conductors. Fox River Trolley Museum is a heritage railroad and transportation museum showcasing vintage streetcars and trolleys, offering scenic rides along the Fox River and educational programs on public transportation history. Elgin Public Museum is a natural history museum located in Lords Park, featuring exhibits and educational programs on topics such as geology, paleontology, Native American culture, and local wildlife.

Waukegan

Population: Waukegan, situated on the shores of Lake Michigan, has over 85,000 residents.
Area: Waukegan covers approximately 24.0 square miles.
Zip Codes: Waukegan has various zip codes, including 60079, 60085, 60087.
Area Codes: 847, 224
County Affiliated: Lake County
Latitude: 42.3636° N
Longitude: 87.8448° W

Waukegan is a diverse city known for its lakefront attractions, cultural diversity, and industrial heritage. Genesee Theatre is a historic theater and entertainment venue in downtown Waukegan, featuring concerts, comedy shows, Broadway productions, and special events, as well as architectural tours and backstage experiences. Waukegan Harbor is a recreational harbor offering boat launches, fishing piers, marinas, and waterfront dining options, as well as scenic views of Lake Michigan and the Waukegan shoreline. Bowen Park is a public park featuring green spaces, picnic areas, walking trails, playgrounds, and a golf course, as well as cultural attractions such as the Waukegan History Museum and the Waukegan National Airport.

Towns and Cities of Illinois

A

Abingdon, IL
Addieville, IL
Addison, IL
Adeline, IL
Albany, IL
Albers, IL
Albion, IL
Aledo, IL
Alexis, IL
Algonquin, IL
Alhambra, IL
Allendale, IL
Allenville, IL
Allerton, IL
Alma, IL
Alorton, IL
Alpha, IL
Alsey, IL
Alsip, IL
Altamont, IL
Alto Pass, IL
Alton, IL
Altona, IL
Alvin, IL
Amboy, IL
Anchor, IL
Andalusia, IL
Andover, IL
Anna, IL
Annawan, IL
Antioch, IL
Apple River, IL
Arcola, IL
Arenzville, IL
Argenta, IL
Arlington, IL
Arlington Heights, IL
Armington, IL
Aroma Park, IL
Arrowsmith, IL
Arthur, IL
Ashkum, IL
Ashland, IL
Ashley, IL
Ashmore, IL
Ashton, IL
Assumption, IL
Astoria, IL
Athens, IL
Atkinson, IL
Atlanta, IL
Atwood, IL
Auburn, IL
Augusta, IL
Aurora, IL
Ava, IL
Aviston, IL
Avon, IL

B

Baldwin, IL
Banner, IL
Bannockburn, IL
Bardolph, IL
Barrington, IL
Barrington Hills, IL
Barry, IL
Bartelso, IL
Bartlett, IL
Bartonville, IL
Basco, IL
Batavia, IL
Batchtown, IL
Bath, IL
Bay View Gardens, IL
Baylis, IL
Beach Park, IL
Beardstown, IL
Beaverville, IL
Beckemeyer, IL
Bedford Park, IL
Beecher, IL
Beecher City, IL
Belgium, IL
Belknap, IL
Belle Prairie City, IL
Belle Rive, IL
Belleville, IL
Bellevue, IL
Bellflower, IL
Bellmont, IL
Bellwood, IL
Belvidere, IL
Bement, IL
Benld, IL
Bensenville, IL
Benson, IL
Bentley, IL
Benton, IL
Berkeley, IL
Berlin, IL
Berwyn, IL
Bethalto, IL
Bethany, IL
Big Rock, IL
Biggsville, IL
Bingham, IL
Bishop Hill, IL
Bismarck, IL
Blandinsville, IL
Bloomingdale, IL
Bloomington, IL
Blue Island, IL
Blue Mound, IL
Bluffs, IL
Bluford, IL
Bolingbrook, IL
Bondville, IL
Bone Gap, IL
Bonfield, IL
Bonnie, IL
Bourbonnais, IL
Bowen, IL
Braceville, IL
Bradford, IL
Bradley, IL
Braidwood, IL
Breese, IL
Bridgeport, IL
Bridgeview, IL
Brighton, IL
Brimfield, IL
Broadlands, IL
Broadview, IL
Broadwell, IL
Brocton, IL
Brookfield, IL
Brooklyn, IL
Brookport, IL
Broughton, IL
Browning, IL
Browns, IL
Brownstown, IL
Brussels, IL
Bryant, IL
Buckingham, IL
Buckley, IL
Buckner, IL
Buda, IL
Buffalo, IL
Buffalo Grove, IL
Bull Valley, IL
Bulpitt, IL
Buncombe, IL
Bunker Hill, IL
Burbank, IL
Bureau Junction, IL
Burlington, IL
Burnham, IL
Burnt Prairie, IL
Burr Ridge, IL
Bush, IL
Bushnell, IL
Butler, IL
Byron, IL

C

Cabery, IL
Cahokia, IL
Cairo, IL
Caledonia, IL
Calhoun, IL
Calumet City, IL
Calumet Park, IL
Camargo, IL
Cambria, IL
Cambridge, IL
Camden, IL
Camp Point, IL
Campbell Hill, IL
Campton Hills, IL
Campus, IL
Canton, IL
Cantrall, IL
Capron, IL
Carbon Cliff, IL
Carbon Hill, IL
Carbondale, IL
Carlinville, IL
Carlock, IL
Carlyle, IL
Carmi, IL
Carol Stream, IL
Carpentersville, IL
Carrier Mills, IL
Carrollton, IL
Carterville, IL
Carthage, IL
Cary, IL
Casey, IL
Caseyville, IL
Catlin, IL
Cave-In-Rock, IL
Cedar Point, IL
Cedarville, IL
Central City, IL
Centralia, IL
Centreville, IL
Cerro Gordo, IL
Chadwick, IL
Champaign, IL
Chandlerville, IL
Channahon, IL
Chapin, IL
Charleston, IL
Chatham, IL
Chatsworth, IL
Chebanse, IL
Chenoa, IL
Cherry, IL
Cherry Valley, IL
Chester, IL
Chesterfield, IL
Chicago Heights, IL
Chicago Ridge, IL
Chicago, IL
Chillicothe, IL
Chrisman, IL
Christopher, IL
Cicero, IL
Cisco, IL
Cisne, IL
Cissna Park, IL
Claremont, IL
Clarendon Hills, IL
Clay City, IL
Clayton, IL
Clear Lake, IL
Cleveland, IL
Clifton, IL
Clinton, IL
Coal City, IL
Coal Valley, IL
Coalton, IL
Coatsburg, IL
Cobden, IL
Coffeen, IL
Colchester, IL
Coleta, IL
Colfax, IL
Collinsville, IL
Colona, IL
Colp, IL
Columbia, IL
Columbus, IL
Compton, IL
Concord, IL
Congerville, IL
Cooksville, IL
Cordova, IL
Cornell, IL
Cortland, IL
Coulterville, IL
Country Club Hills, IL
Countryside, IL
Cowden, IL
Crainville, IL
Creal Springs, IL
Crescent City, IL
Crest Hill, IL
Creston, IL
Crestwood, IL
Crete, IL
Creve Coeur, IL
Crossville, IL
Crystal Lake, IL
Cuba, IL
Cullom, IL
Curran, IL
Cutler, IL
Cypress, IL

D

Dahlgren, IL
Dakota, IL
Dallas City, IL
Dalton City, IL
Dalzell, IL
Damiansville, IL
Dana, IL
Danforth, IL
Danvers, IL
Danville, IL
Darien, IL
Davis, IL
Davis Junction, IL
Dawson, IL
De Land, IL
De Pue, IL
De Soto, IL
De Witt, IL
Decatur, IL
Deer Creek, IL
Deer Grove, IL
Deer Park, IL
Deerfield, IL
DeKalb, IL
Delavan, IL
Des Plaines, IL
Detroit, IL
Diamond, IL
Dieterich, IL
Divernon, IL
Dix, IL
Dixmoor, IL
Dixon, IL
Dolton, IL
Dongola, IL
Donnellson, IL
Donovan, IL
Dorchester, IL
Dover, IL
Dowell, IL
Downers Grove, IL
Downs, IL
Du Bois, IL
Du Quoin, IL
Dunfermline, IL
Dunlap, IL
Dupo, IL
Durand, IL
Dwight, IL

E

Eagarville, IL
Earlville, IL
East Alton, IL
East Brooklyn, IL
East Cape Girardeau, IL
East Carondelet, IL
East Dubuque, IL
East Dundee, IL
East Galesburg, IL
East Gillespie, IL
East Hazel Crest, IL
East Moline, IL
East Peoria, IL
East St. Louis, IL
Easton, IL
Eddyville, IL
Edgewood, IL
Edinburg, IL
Edwardsville, IL
Effingham, IL
El Dara, IL
El Paso, IL
Elburn, IL
Eldorado, IL
Eldred, IL
Elgin, IL
Elizabeth, IL
Elizabethtown, IL
Elk Grove Village, IL
Elkhart, IL
Elkville, IL
Elliott, IL
Ellis Grove, IL
Ellisville, IL
Ellsworth, IL
Elmhurst, IL
Elmwood, IL
Elmwood Park, IL
Elsah, IL
Elvaston, IL
Elwood, IL
Emden, IL
Emington, IL
Energy, IL
Enfield, IL
Equality, IL
Erie, IL
Essex, IL
Eureka, IL
Evanston, IL
Evansville, IL
Evergreen Park, IL
Ewing, IL
Exeter, IL

F

Fairbury, IL
Fairfield, IL
Fairmont City, IL
Fairmount, IL
Fairview, IL
Fairview Heights, IL
Farina, IL
Farmer City, IL
Farmersville, IL
Farmington, IL
Fayetteville, IL
Ferris, IL
Fidelity, IL
Fieldon, IL
Fillmore, IL
Findlay, IL
Fisher, IL
Fithian, IL
Flanagan, IL
Flat Rock, IL
Flora, IL
Florence, IL
Flossmoor, IL
Foosland, IL
Ford Heights, IL
Forest City, IL
Forest Park, IL
Forest View, IL
Forrest, IL
Forreston, IL
Forsyth, IL
Fox Lake, IL
Fox River Grove, IL
Frankfort, IL
Franklin, IL
Franklin Grove, IL
Franklin Park, IL
Freeburg, IL
Freeman Spur, IL
Freeport, IL
Fulton, IL
Fults, IL

G

Galatia, IL
Galena, IL
Galesburg, IL
Galva, IL
Gardner, IL
Garrett, IL
Gays, IL
Geneseo, IL
Geneva, IL
Genoa, IL
Georgetown, IL
German Valley, IL
Germantown, IL
Germantown Hills, IL
Gibson City, IL
Gifford, IL
Gilberts, IL
Gillespie, IL
Gilman, IL
Girard, IL
Gladstone, IL
Glasford, IL
Glasgow, IL
Glen Carbon, IL
Glen Ellyn, IL
Glencoe, IL
Glendale Heights, IL
Glenview, IL
Glenwood, IL
Godfrey, IL
Godley, IL
Golconda, IL
Golden, IL
Golden Gate, IL
Golf, IL
Good Hope, IL
Goodfield, IL
Goreville, IL
Gorham, IL
Grafton, IL
Grand Ridge, IL
Grand Tower, IL
Grandview, IL
Granite City, IL
Grant Park, IL
Grantfork, IL
Granville, IL
Grayslake, IL
Grayville, IL
Green Oaks, IL
Green Valley, IL
Greenfield, IL
Greenup, IL
Greenview, IL
Greenville, IL
Greenwood, IL
Gridley, IL
Griggsville, IL
Gulfport, IL
Gurnee, IL

H

Hainesville, IL
Hamburg, IL
Hamel, IL
Hamilton, IL
Hammond, IL
Hampshire, IL
Hampton, IL
Hanaford, IL
Hanna City, IL
Hanover, IL
Hanover Park, IL
Hardin, IL
Harmon, IL
Harrisburg, IL
Harristown, IL
Hartford, IL
Hartsburg, IL
Harvard, IL
Harvel, IL
Harvey, IL
Harwood Heights, IL
Havana, IL
Hawthorn Woods, IL
Hazel Crest, IL
Hebron, IL
Hecker, IL
Henderson, IL
Hennepin, IL
Henning, IL
Henry, IL
Herrick, IL
Herrin, IL
Herscher, IL
Hettick, IL
Heyworth, IL
Hickory Hills, IL
Hidalgo, IL
Highland, IL
Highland Park, IL
Highwood, IL
Hillcrest, IL
Hillsboro, IL
Hillsdale, IL
Hillside, IL
Hillview, IL
Hinckley, IL
Hindsboro, IL
Hinsdale, IL
Hodgkins, IL
Hoffman, IL
Hoffman Estates, IL
Holiday Hills, IL
Hollowayville, IL
Homer, IL
Homer Glen, IL
Hometown, IL
Homewood, IL
Hoopeston, IL
Hooppole, IL
Hopedale, IL
Hopewell, IL
Hopkins Park, IL
Hoyleton, IL
Hudson, IL
Huey, IL
Hull, IL
Humboldt, IL
Hume, IL
Huntley, IL
Hurst, IL
Hutsonville, IL

I

Illiopolis, IL
Ina, IL
Indian Creek, IL
Indian Head Park, IL
Indianola, IL
Industry, IL
Inverness, IL
Iola, IL
Ipava, IL
Iroquois, IL
Irving, IL
Irvington, IL
Irwin, IL
Island Lake, IL
Itasca, IL
Iuka, IL
Ivesdale, IL

J

Jacksonville, IL
Jeffersonville, IL
Jeisyville, IL
Jerome, IL
Jerseyville, IL
Jewett, IL
Johnsburg, IL
Johnsonville, IL
Johnston City, IL
Joliet, IL
Jonesboro, IL
Joppa, IL
Joy, IL
Junction, IL
Junction City, IL
Justice, IL

K

Kampsville, IL
Kane, IL
Kaneville, IL
Kangley, IL
Kankakee, IL
Kansas, IL
Kappa, IL
Karnak, IL
Kaskaskia, IL
Keenes, IL
Keensburg, IL
Keithsburg, IL
Kell, IL
Kempton, IL
Kenilworth, IL
Kenney, IL
Kewanee, IL
Keyesport, IL
Kilbourne, IL
Kildeer, IL
Kincaid, IL
Kinderhook, IL
Kingston, IL
Kingston Mines, IL
Kinmundy, IL
Kinsman, IL
Kirkland, IL
Kirkwood, IL
Knoxville, IL

L

La Fayette, IL
La Grange, IL
La Grange Park, IL
La Harpe, IL
La Moille, IL
La Prairie, IL
La Rose, IL
Lacon, IL
Ladd, IL
Lake Barrington, IL
Lake Bluff, IL
Lake Forest, IL
Lake in the Hills, IL
Lake Ka-Ho, IL
Lake Villa, IL
Lake Zurich, IL
Lakemoor, IL
Lakewood, IL
Lanark, IL
Lansing, IL
LaSalle, IL
Latham, IL
Lawrenceville, IL
Le Roy, IL
Leaf River, IL
Lebanon, IL
Lee, IL
Leland, IL
Leland Grove, IL
Lemont, IL
Lena, IL
Lenzburg, IL
Leonore, IL
Lerna, IL
Lewistown, IL
Lexington, IL
Liberty, IL
Libertyville, IL
Lily Lake, IL
Lima, IL
Limestone, IL
Lincoln, IL
Lincolnshire, IL
Lincolnwood, IL
Lindenhurst, IL
Lisbon, IL
Lisle, IL
Litchfield, IL
Little York, IL
Littleton, IL
Liverpool, IL
Livingston, IL
Loami, IL
Lockport, IL
Loda, IL
Lomax, IL
Lombard, IL
London Mills, IL
Long Creek, IL
Long Grove, IL
Long Point, IL
Longview, IL
Loraine, IL
Lostant, IL
Louisville, IL
Loves Park, IL
Lovington, IL
Ludlow, IL
Lyndon, IL
Lynnville, IL
Lynwood, IL
Lyons, IL

M

Macedonia, IL
Machesney Park, IL
Mackinaw, IL
Macomb, IL
Macon, IL
Madison, IL
Maeystown, IL
Magnolia, IL
Mahomet, IL
Makanda, IL
Malden, IL
Malta, IL
Manchester, IL
Manhattan, IL
Manito, IL
Manlius, IL
Mansfield, IL
Manteno, IL
Maple Park, IL
Mapleton, IL
Maquon, IL
Marengo, IL
Marietta, IL
Marine, IL
Marion, IL
Marissa, IL
Mark, IL
Markham, IL
Maroa, IL
Marquette Heights, IL
Marseilles, IL
Marshall, IL
Martinsville, IL
Martinton, IL
Maryville, IL
Mascoutah, IL
Mason, IL
Mason City, IL
Matherville, IL
Matteson, IL
Mattoon, IL
Maunie, IL
Maywood, IL
Mazon, IL
McClure, IL
McCook, IL
McCullom Lake, IL
McHenry, IL
McLean, IL
McLeansboro, IL
McNabb, IL
Mechanicsburg, IL
Media, IL
Medora, IL
Melrose Park, IL
Melvin, IL
Mendon, IL
Mendota, IL
Menominee, IL
Meredosia, IL
Merrionette Park, IL
Metamora, IL
Metcalf, IL
Metropolis, IL
Mettawa, IL
Middletown, IL
Midlothian, IL
Milan, IL
Milford, IL
Mill Creek, IL
Mill Shoals, IL
Millbrook, IL
Milledgeville, IL
Millington, IL
Millstadt, IL
Milton, IL
Mineral, IL
Minier, IL
Minonk, IL
Minooka, IL
Modesto, IL
Mokena, IL
Moline, IL
Momence, IL
Monee, IL
Monmouth, IL
Monroe Center, IL
Montgomery, IL
Monticello, IL
Montrose, IL
Morris, IL
Morrison, IL
Morrisonville, IL
Morton, IL
Morton Grove, IL
Mound City, IL
Mound Station, IL
Mounds, IL
Mount Auburn, IL
Mount Carmel, IL
Mount Carroll, IL
Mount Clare, IL
Mount Erie, IL
Mount Morris, IL
Mount Olive, IL
Mount Prospect, IL
Mount Pulaski, IL
Mount Sterling, IL
Mount Vernon, IL
Mount Zion, IL
Moweaqua, IL
Muddy, IL
Mulberry Grove, IL
Muncie, IL
Mundelein, IL
Murphysboro, IL
Murrayville, IL

N

Naperville, IL
Naplate, IL
Naples, IL
Nashville, IL
Nason, IL
Nauvoo, IL
Nebo, IL
Nelson, IL
Neoga, IL
Neponset, IL
New Athens, IL
New Baden, IL
New Bedford, IL
New Berlin, IL
New Boston, IL
New Burnside, IL
New Canton, IL
New Douglas, IL
New Grand Chain, IL
New Haven, IL
New Holland, IL
New Lenox, IL
New Milford, IL
New Minden, IL
New Salem, IL
Newark, IL
Newman, IL
Newton, IL
Niantic, IL
Niles, IL
Nilwood, IL
Noble, IL
Nokomis, IL
Nora, IL
Normal, IL
Norridge, IL
Norris, IL
Norris City, IL
North Aurora, IL
North Barrington, IL
North Chicago, IL
North City, IL
North Henderson, IL
North Pekin, IL
North Riverside, IL
North Utica, IL
Northbrook, IL
Northfield, IL
Northlake, IL
Norwood, IL

O

O’Fallon, IL
Oak Brook, IL
Oak Forest, IL
Oak Grove, IL
Oak Lawn, IL
Oak Park, IL
Oakbrook Terrace, IL
Oakdale, IL
Oakford, IL
Oakland, IL
Oakwood, IL
Oakwood Hills, IL
Oblong, IL
Oconee, IL
Odell, IL
Odin, IL
Ogden, IL
Oglesby, IL
Ohio, IL
Ohlman, IL
Okawville, IL
Old Mill Creek, IL
Old Ripley, IL
Old Shawneetown, IL
Olmsted, IL
Olney, IL
Olympia Fields, IL
Omaha, IL
Onarga, IL
Oneida, IL
Oquawka, IL
Orangeville, IL
Oreana, IL
Oregon, IL
Orient, IL
Orion, IL
Orland Hills, IL
Orland Park, IL
Oswego, IL
Ottawa, IL
Otterville, IL
Owaneco, IL

P

Palatine, IL
Palestine, IL
Palmer, IL
Palmyra, IL
Palos Heights, IL
Palos Hills, IL
Palos Park, IL
Pana, IL
Panama, IL
Panola, IL
Papineau, IL
Paris, IL
Park City, IL
Park Forest, IL
Park Ridge, IL
Parkersburg, IL
Patoka, IL
Paw Paw, IL
Pawnee, IL
Paxton, IL
Payson, IL
Pearl, IL
Pearl City, IL
Pecatonica, IL
Pekin, IL
Peoria Heights, IL
Peoria, IL
Peotone, IL
Percy, IL
Perry, IL
Peru, IL
Pesotum, IL
Petersburg, IL
Phillipstown, IL
Philo, IL
Phoenix, IL
Pierron, IL
Pinckneyville, IL
Pingree Grove, IL
Piper City, IL
Pittsburg, IL
Pittsfield, IL
Plainfield, IL
Plainville, IL
Plano, IL
Plattville, IL
Pleasant Hill, IL
Pleasant Plains, IL
Plymouth, IL
Pocahontas, IL
Polo, IL
Pontiac, IL
Pontoon Beach, IL
Pontoosuc, IL
Poplar Grove, IL
Port Barrington, IL
Port Byron, IL
Posen, IL
Potomac, IL
Prairie City, IL
Prairie du Rocher, IL
Prairie Grove, IL
Princeton, IL
Princeville, IL
Prophetstown, IL
Prospect Heights, IL
Pulaski, IL

Q

Quincy, IL

R

Radom, IL
Raleigh, IL
Ramsey, IL
Rankin, IL
Ransom, IL
Rantoul, IL
Rapids City, IL
Raritan, IL
Raymond, IL
Red Bud, IL
Reddick, IL
Redmon, IL
Reynolds, IL
Richmond, IL
Richton Park, IL
Richview, IL
Ridge Farm, IL
Ridgway, IL
Ridott, IL
Ringwood, IL
Rio, IL
Ripley, IL
River Forest, IL
River Grove, IL
Riverdale, IL
Riverside, IL
Riverton, IL
Riverwoods, IL
Roanoke, IL
Robbins, IL
Roberts, IL
Robinson, IL
Rochelle, IL
Rochester, IL
Rock City, IL
Rock Falls, IL
Rock Island, IL
Rockbridge, IL
Rockdale, IL
Rockford, IL
Rockton, IL
Rockwood, IL
Rolling Meadows, IL
Romeoville, IL
Roodhouse, IL
Roscoe, IL
Rose Hill, IL
Roselle, IL
Rosemont, IL
Roseville, IL
Rosiclare, IL
Rossville, IL
Round Lake, IL
Round Lake Beach, IL
Round Lake Heights, IL
Round Lake Park, IL
Roxana, IL
Royal, IL
Royal Lakes, IL
Royalton, IL
Ruma, IL
Rushville, IL
Russellville, IL
Rutland, IL

S

Sadorus, IL
Sailor Springs, IL
Salem, IL
Sammons Point, IL
San Jose, IL
Sandoval, IL
Sandwich, IL
Sauget, IL
Sauk Village, IL
Saunemin, IL
Savanna, IL
Savoy, IL
Sawyerville, IL
Saybrook, IL
Scales Mound, IL
Schaumburg, IL
Schiller Park, IL
Schram City, IL
Sciota, IL
Scottville, IL
Seaton, IL
Seatonville, IL
Secor, IL
Seneca, IL
Sesser, IL
Shabbona, IL
Shannon, IL
Shawneetown, IL
Sheffield, IL
Shelbyville, IL
Sheldon, IL
Sheridan, IL
Sherman, IL
Sherrard, IL
Shiloh, IL
Shipman, IL
Shorewood, IL
Shumway, IL
Sibley, IL
Sidell, IL
Sidney, IL
Sigel, IL
Silvis, IL
Simpson, IL
Sims, IL
Skokie, IL
Sleepy Hollow, IL
Smithboro, IL
Smithfield, IL
Smithton, IL
Somonauk, IL
Sorento, IL
South Barrington, IL
South Beloit, IL
South Chicago Heights, IL
South Elgin, IL
South Holland, IL
South Jacksonville, IL
South Pekin, IL
South Roxana, IL
South Wilmington, IL
Southern View, IL
Sparland, IL
Sparta, IL
Spaulding, IL
Spillertown, IL
Spring Bay, IL
Spring Grove, IL
Spring Valley, IL
Springerton, IL
Springfield, IL
St. Anne, IL
St. Augustine, IL
St. Charles, IL
St. David, IL
St. Elmo, IL
St. Francisville, IL
St. Jacob, IL
St. Johns, IL
St. Joseph, IL
St. Libory, IL
St. Peter, IL
St. Rose, IL
Standard, IL
Standard City, IL
Stanford, IL
Staunton, IL
Ste. Marie, IL
Steeleville, IL
Steger, IL
Sterling, IL
Steward, IL
Stewardson, IL
Stickney, IL
Stillman Valley, IL
Stockton, IL
Stone Park, IL
Stonefort, IL
Stonington, IL
Stoy, IL
Strasburg, IL
Strawn, IL
Streamwood, IL
Streator, IL
Stronghurst, IL
Sublette, IL
Sugar Grove, IL
Sullivan, IL
Summerfield, IL
Summit, IL
Sumner, IL
Sun River Terrace, IL
Swansea, IL
Sycamore, IL
Symerton, IL

T

Table Grove, IL
Tallula, IL
Tamaroa, IL
Tamms, IL
Tampico, IL
Taylor Springs, IL
Taylorville, IL
Tennessee, IL
Teutopolis, IL
Thawville, IL
Thayer, IL
Thebes, IL
Third Lake, IL
Thomasboro, IL
Thompsonville, IL
Thomson, IL
Thornton, IL
Tilden, IL
Tilton, IL
Timberlane, IL
Time, IL
Tinley Park, IL
Tiskilwa, IL
Toledo, IL
Tolono, IL
Toluca, IL
Tonica, IL
Topeka, IL
Toulon, IL
Tovey, IL
Towanda, IL
Tower Hill, IL
Tower Lakes, IL
Tremont, IL
Trenton, IL
Trout Valley, IL
Troy, IL
Troy Grove, IL
Tuscola, IL

U

Ullin, IL
Union, IL
Union Hill, IL
University Park, IL
Urbana, IL
Ursa, IL

V

Valier, IL
Valley City, IL
Valmeyer, IL
Vandalia, IL
Varna, IL
Venedy, IL
Venice, IL
Vergennes, IL
Vermilion, IL
Vermont, IL
Vernon, IL
Vernon Hills, IL
Verona, IL
Versailles, IL
Victoria, IL
Vienna, IL
Villa Grove, IL
Villa Park, IL
Viola, IL
Virden, IL
Virgil, IL
Virginia, IL
Volo, IL

W

Wadsworth, IL
Waggoner, IL
Walnut, IL
Walnut Hill, IL
Walshville, IL
Waltonville, IL
Wamac, IL
Wapella, IL
Warren, IL
Warrensburg, IL
Warrenville, IL
Warsaw, IL
Washburn, IL
Washington, IL
Washington Park, IL
Wataga, IL
Waterloo, IL
Waterman, IL
Watseka, IL
Watson, IL
Wauconda, IL
Waukegan, IL
Waverly, IL
Wayne, IL
Wayne City, IL
Waynesville, IL
Weldon, IL
Wellington, IL
Wenona, IL
Wenonah, IL
West Brooklyn, IL
West Chicago, IL
West City, IL
West Dundee, IL
West Frankfort, IL
West Peoria, IL
West Point, IL
West Salem, IL
Westchester, IL
Western Springs, IL
Westfield, IL
Westmont, IL
Westville, IL
Wheaton, IL
Wheeler, IL
Wheeling, IL
White City, IL
White Hall, IL
Williamsfield, IL
Williamson, IL
Williamsville, IL
Willisville, IL
Willow Hill, IL
Willow Springs, IL
Willowbrook, IL
Wilmette, IL
Wilmington, IL
Wilmington, IL
Wilsonville, IL
Winchester, IL
Windsor, IL
Winfield, IL
Winnebago, IL
Winnetka, IL
Winslow, IL
Winthrop Harbor, IL
Witt, IL
Wonder Lake, IL
Wood Dale, IL
Wood River, IL
Woodhull, IL
Woodland, IL
Woodlawn, IL
Woodridge, IL
Woodson, IL
Woodstock, IL
Worden, IL
Worth, IL
Wyanet, IL
Wyoming, IL

X

Xenia, IL

Y

Yale, IL
Yates City, IL
Yorkville, IL

Z

Zeigler, IL
Zion, IL

Map of Illinois Counties

1. McLean County

County Seat: Bloomington

Area: 1,186 square miles
Population: Approximately 170,954 (2020 census)
Area Codes: 309
Latitude: 40.4842° N
Longitude: 88.9937° W

Location and History

McLean County is the largest county by area in Illinois, located in the central part of the state. Established in 1830, the county was named after John McLean, a U.S. Senator from Illinois. Bloomington, the county seat, is one of the twin cities (along with Normal) that serve as the economic and cultural hub of the region. The county’s history is deeply connected to agriculture, particularly corn and soybean production, and later became a center for transportation and education with the establishment of Illinois Wesleyan University and Illinois State University in nearby Normal. McLean County’s growth was significantly influenced by the arrival of the railroad in the mid-19th century, making Bloomington a key stop on the Chicago & Alton Railroad.

Major Highways and Landmarks

McLean County is intersected by major highways, including Interstate 55, which runs north-south through the county, connecting it to Chicago and St. Louis. Interstate 74 and Interstate 39 also pass through the county, providing access to Peoria, Champaign, and Rockford. Significant landmarks include the David Davis Mansion, home of Abraham Lincoln’s close friend and Supreme Court Justice David Davis, and the McLean County Museum of History, located in the historic courthouse in downtown Bloomington. The county is also known for the Constitution Trail, a popular walking and biking path that runs through Bloomington-Normal, and the Ewing Manor and Cultural Center, which hosts numerous cultural and artistic events.

2. LaSalle County

County Seat: Ottawa

Area: 1,148 square miles
Population: Approximately 109,658 (2020 census)
Area Codes: 815, 779
Latitude: 41.3333° N
Longitude: 88.8330° W

Location and History

LaSalle County is located in north-central Illinois and was established in 1831. The county was named after the French explorer René-Robert Cavelier, Sieur de La Salle, who explored the region in the 17th century. Ottawa, the county seat, played a significant role in the early political history of Illinois, notably as the site of the first Lincoln-Douglas debate in 1858. The county’s economy has historically been based on agriculture and mining, particularly coal, though manufacturing and tourism have become increasingly important. LaSalle County is also known for its scenic beauty, with the Illinois River running through the county and several state parks attracting visitors.

Major Highways and Landmarks

LaSalle County is served by major highways such as Interstate 80, which runs east-west across the northern part of the county, and Interstate 39, which runs north-south. U.S. Route 6 and U.S. Route 52 are also key routes in the region. Key landmarks include Starved Rock State Park, one of Illinois’ most popular natural attractions, known for its canyons, waterfalls, and hiking trails. The county is also home to Matthiessen State Park, another scenic area with rock formations and waterfalls, and the Hegeler Carus Mansion in LaSalle, a National Historic Landmark that reflects the county’s industrial heritage. The Illinois & Michigan Canal National Heritage Corridor, which runs through Ottawa, celebrates the history of the canal that connected the Great Lakes to the Mississippi River.

3. Kankakee County

County Seat: Kankakee

Area: 681 square miles
Population: Approximately 107,502 (2020 census)
Area Codes: 815, 779
Latitude: 41.1200° N
Longitude: 87.8616° W

Location and History

Kankakee County is located in northeastern Illinois, just south of the Chicago metropolitan area. The county was established in 1853 and named after the Kankakee River, which flows through the region. Kankakee, the county seat, developed as a key agricultural and transportation hub in the 19th century, particularly after the arrival of the Illinois Central Railroad. The county has a diverse economy, with agriculture, manufacturing, and services playing significant roles. Kankakee County is also known for its natural beauty, with the Kankakee River providing opportunities for recreation and conservation.

Major Highways and Landmarks

Kankakee County is accessible via Interstate 57, which runs north-south through the county, connecting it to Chicago to the north and Champaign to the south. U.S. Route 45/52 and Illinois Route 17 are also important highways in the region. Notable landmarks include the Kankakee River State Park, which offers hiking, fishing, camping, and canoeing along the scenic Kankakee River. The Frank Lloyd Wright-designed B. Harley Bradley House, located in Kankakee, is a significant example of the Prairie School architectural style and is open for tours. The county also hosts the annual Kankakee River Valley Fishing Derby, which attracts anglers from across the state.

4. Iroquois County

County Seat: Watseka

Area: 1,117 square miles
Population: Approximately 27,077 (2020 census)
Area Codes: 815, 779
Latitude: 40.7785° N
Longitude: 87.7320° W

Location and History

Iroquois County is located in east-central Illinois, along the Indiana border. Established in 1833, the county was named after the Iroquois Confederacy, although the Iroquois people did not historically inhabit the area. Watseka, the county seat, is named after a Native American woman of the Potawatomi tribe, reflecting the region’s indigenous heritage. The county’s economy has long been based on agriculture, with corn, soybeans, and dairy farming being the primary industries. Iroquois County is known for its rural landscapes and small-town charm, with many historic sites and buildings preserved throughout the county.

Major Highways and Landmarks

Iroquois County is served by U.S. Route 24, which runs east-west through the county, and U.S. Route 52, which runs north-south. Interstate 57 also passes through the western part of the county, providing access to Chicago and southern Illinois. Significant landmarks include the Old Courthouse Museum in Watseka, which houses exhibits on the county’s history and culture, and the Iroquois County State Wildlife Area, a popular destination for hunting, fishing, and birdwatching. The county is also home to several historic churches and cemeteries that reflect the area’s 19th-century settlement patterns. The annual Watseka Park Festival is a key cultural event in the county, celebrating local heritage with parades, music, and community activities.

5. Livingston County

County Seat: Pontiac

Area: 1,044 square miles
Population: Approximately 35,815 (2020 census)
Area Codes: 815, 779
Latitude: 40.8806° N
Longitude: 88.6295° W

Location and History

Livingston County is located in central Illinois and was established in 1837. The county was named after Edward Livingston, a prominent U.S. statesman and jurist. Pontiac, the county seat, developed as a major stop along the historic Route 66, which contributed to the county’s growth and development in the 20th century. Livingston County’s economy has traditionally been based on agriculture, with corn and soybeans being the dominant crops, though manufacturing and services have become more significant in recent decades. The county is known for its historic sites, scenic landscapes, and strong connection to Route 66.

Major Highways and Landmarks

Livingston County is intersected by Interstate 55, which runs north-south through the county, following the path of historic Route 66. U.S. Route 24 and Illinois Route 116 are also important highways in the region. Key landmarks include the Pontiac-Oakland Automobile Museum, which celebrates the history of the Pontiac car brand and Route 66. The Livingston County Courthouse, located in downtown Pontiac, is a historic building that serves as the center of county government. The county is also home to the Route 66 Hall of Fame & Museum, which features exhibits on the history of the “Mother Road” and its impact on American culture. The Vermilion River, which runs through the county, offers opportunities for fishing, canoeing, and nature observation.

6. DeKalb County

County Seat: Sycamore

Area: 634 square miles
Population: Approximately 100,420 (2020 census)
Area Codes: 815, 779
Latitude: 41.8885° N
Longitude: 88.7642° W

Location and History

DeKalb County is located in northern Illinois, west of Chicago. Established in 1837, the county was named after Johann de Kalb, a German-born hero of the American Revolutionary War. Sycamore, the county seat, has a rich history and is known for its well-preserved historic downtown. The city of DeKalb, home to Northern Illinois University (NIU), is the largest city in the county and serves as a major educational and cultural center. The county’s economy is diverse, with agriculture, education, manufacturing, and healthcare playing significant roles. DeKalb County is also known for its contributions to agricultural innovation, particularly in the development of hybrid corn.

Major Highways and Landmarks

DeKalb County is served by Interstate 88, which runs east-west through the southern part of the county, and U.S. Route 30, which also runs east-west. Illinois Route 23 is a key north-south route. Notable landmarks include the Ellwood House Museum in DeKalb, a historic mansion that reflects the county’s agricultural heritage, and the DeKalb County Courthouse in Sycamore, a beautiful example of Beaux-Arts architecture. The NIU campus in DeKalb is a major cultural hub, hosting numerous events, performances, and exhibitions. The county is also home to the Sycamore Pumpkin Festival, an annual event that draws visitors from across the region to celebrate the harvest season with parades, contests, and family activities.

7. Will County

County Seat: Joliet

Area: 837 square miles
Population: Approximately 696,355 (2020 census)
Area Codes: 815, 779
Latitude: 41.5055° N
Longitude: 88.0817° W

Location and History

Will County is located in northeastern Illinois, just south of Chicago. Established in 1836, the county was named after Conrad Will, a politician and businessman who played a key role in the early development of Illinois. Joliet, the county seat, is one of the largest cities in the state and has a rich history as an industrial and transportation hub. The county’s economy has traditionally been based on manufacturing, transportation, and agriculture, though it has diversified in recent years to include services, logistics, and healthcare. Will County is part of the Chicago metropolitan area and has experienced significant growth and suburbanization in the past few decades.

Major Highways and Landmarks

Will County is intersected by several major highways, including Interstate 55, which runs north-south, and Interstate 80, which runs east-west through the county. Interstate 355, the Veterans Memorial Tollway, also runs through the county, providing access to the western suburbs of Chicago. Significant landmarks include the Joliet Iron Works Historic Site, which preserves the remains of one of the largest steel mills in the country, and the Rialto Square Theatre in downtown Joliet, a historic vaudeville theater that is still in use today. The county is also home to the Midewin National Tallgrass Prairie, a large conservation area dedicated to restoring native prairie ecosystems. The Illinois & Michigan Canal National Heritage Corridor, which runs through the county, celebrates the history of the canal that connected the Great Lakes to the Mississippi River.

8. Champaign County

County Seat: Urbana

Area: 998 square miles
Population: Approximately 205,865 (2020 census)
Area Codes: 217
Latitude: 40.1138° N
Longitude: 88.1970° W

Location and History

Champaign County is located in east-central Illinois and was established in 1833. The county was named after Champaign County, Ohio, from which many early settlers came. Urbana, the county seat, is part of the Champaign-Urbana metropolitan area, which is also home to the University of Illinois at Urbana-Champaign (UIUC). The university, one of the top public research institutions in the country, is the largest employer in the county and plays a central role in its economy, culture, and identity. The county’s economy is also supported by agriculture, with corn and soybeans being the primary crops.

Major Highways and Landmarks

Champaign County is served by Interstate 74, which runs east-west through the county, and Interstate 57, which runs north-south. U.S. Route 45 and U.S. Route 150 are also important highways in the region. Notable landmarks include the Krannert Art Museum and the Spurlock Museum, both located on the UIUC campus, which offer extensive collections of art, history, and culture. The county is also home to the Urbana Sweetcorn Festival, an annual event that celebrates the agricultural heritage of the region. The Champaign County Courthouse in Urbana is another significant landmark, reflecting the county’s rich history and architectural heritage. The county’s robust research and technology sectors have earned it a reputation as a hub of innovation in Illinois.

9. Peoria County

County Seat: Peoria

Area: 629 square miles
Population: Approximately 181,830 (2020 census)
Area Codes: 309
Latitude: 40.6936° N
Longitude: 89.5889° W

Location and History

Peoria County is located in central Illinois, along the Illinois River. Established in 1825, the county was named after the Peoria, a Native American tribe that historically inhabited the region. Peoria, the county seat, is one of the oldest European settlements in Illinois and developed as a major manufacturing and transportation hub in the 19th and 20th centuries. The county’s economy has traditionally been based on manufacturing, particularly heavy equipment, with Caterpillar Inc., one of the world’s largest construction and mining equipment manufacturers, headquartered in Peoria. In recent years, the economy has diversified to include healthcare, education, and services.

Major Highways and Landmarks

Peoria County is served by Interstate 74, which runs east-west through Peoria, and Interstate 474, which provides a bypass around the city. U.S. Route 24 and U.S. Route 150 also run through the county. Key landmarks include the Peoria Riverfront, a vibrant area with parks, museums, and cultural attractions, including the Peoria Riverfront Museum and the Caterpillar Visitors Center. The county is also home to the Peoria Zoo and Luthy Botanical Garden, both located in Glen Oak Park. The Peoria Civic Center, a major venue for concerts, sports, and conventions, is another significant landmark. The county’s history is preserved at sites like the Pettengill-Morron House, a historic mansion that offers tours and educational programs.

10. Kane County

County Seat: Geneva

Area: 524 square miles
Population: Approximately 532,403 (2020 census)
Area Codes: 630, 331
Latitude: 41.8889° N
Longitude: 88.4016° W

Location and History

Kane County is located in northeastern Illinois, just west of Chicago. Established in 1836, the county was named after Elias Kane, an Illinois senator. Geneva, the county seat, is known for its historic downtown and riverfront, while the city of Aurora, the second-largest city in Illinois, is a major cultural and economic center in the county. Kane County has experienced significant growth in recent decades as part of the Chicago metropolitan area, with a diverse economy that includes manufacturing, retail, healthcare, and services. The county is known for its rich history, scenic Fox River, and strong sense of community.

Major Highways and Landmarks

Kane County is intersected by several major highways, including Interstate 88, which runs east-west through the southern part of the county, and U.S. Route 20, which runs east-west through the northern part. Illinois Route 31 and Illinois Route 25 run parallel to the Fox River, providing access to the county’s riverfront communities. Significant landmarks include the Fabyan Villa Museum and Japanese Garden in Geneva, which offers insights into the life of Colonel George Fabyan and features beautifully landscaped gardens. The Fox River Trail, a popular biking and walking path, runs through the county, offering scenic views and access to several parks and nature preserves. The county is also home to the historic Paramount Theatre in Aurora, a major venue for live performances and cultural events.

Chicago

Aurora

Rockford

Joliet

Naperville

Springfield

Peoria

Elgin

Waukegan

Towns and Cities of Illinois

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

W

X

Y

Z

Map of Illinois Counties

1. McLean County

County Seat: Bloomington

Location and History

Major Highways and Landmarks

2. LaSalle County

County Seat: Ottawa

Location and History

Major Highways and Landmarks

3. Kankakee County

County Seat: Kankakee

Location and History

Major Highways and Landmarks

4. Iroquois County

County Seat: Watseka

Location and History

Major Highways and Landmarks

5. Livingston County

County Seat: Pontiac

Location and History

Major Highways and Landmarks

6. DeKalb County

County Seat: Sycamore

Location and History

Major Highways and Landmarks

7. Will County

County Seat: Joliet

Location and History

Major Highways and Landmarks

8. Champaign County

County Seat: Urbana

Location and History

Major Highways and Landmarks

9. Peoria County

County Seat: Peoria

Location and History

Major Highways and Landmarks

10. Kane County

County Seat: Geneva

Location and History

Major Highways and Landmarks

Counties of Illinois