- Adams County
Named for President John Quincy Adams,
Adams County is located in the west central part of Illinois. Cities include
Camp Point, Clayton, Liberty and Payson.
- Alexander County
Located on the southwestern tip of
Illinois. Cities include, Cairo, Tamms and Thebes.
- Bond County
Located in south Illinois. Cities include, Greenville, Keyesport, Pocahontas and Sorento
- Boone County
Bordering Wisconsin, Boone County
is located in the northernmost part of the state. Cities include,
Belvidere, Caledonia, Poplar Grove and Timberlane
- Brown County
Located in the west-central part of
Illinois. Cities include, Mound Station, Mount Sterling, Ripley
and Versailles
- Bureau County
As of the year 2000 there
were in excess of 35,000
residents in the county. Located in northern Illinois, some of it's cities are,
Arlington, De Pue, New Bradford and Spring Valley.
- Calhoun County
Bordering Missouri,
Calhoun County is located in the west-central part of Illinois.
Cities include, Batchtown, Brussels, Hamburg and Hardin.
- Carroll County
Bordering Iowa, Carroll County
is located in northwest Illinois. Cities include, Chadwick,
Lanark, Mt. Carroll and Shannon
- Cass County
Located in west-central Illinois. Cities include
Ashland, Beardstown, Chandlerville and Virginia.
- Champaign County
Located in east-central
Illinois. Cities incllude, Allerton, Homer, Ludlow and Champaign
- Christian County
Situated in the central part
of Illinois. Cities include, Edinburg, Kincaid, Palmer and Taylorville.
- Clark County
Bordering on Indiana, Clark County is located
in the easternmost part of Illinois. Cities include, Casey, Marshall, Martinsville and Westfield
- Clay County
Named in honor of the statesman Henry Clay,
Clay County is located in the southeast area of Illinois. Cities
include, Clay City, Flora, Louisville and Sailor Springs.
- Clinton County
Located in south-central Illinois. Some of it's
cities are , Beckemeyer, Carlyle, Hoffman and New Baden.
- Coles County
Located in east-central Illinois. Cities
include, Ashmore, Charleston, Humboldt and Oakland.
- Cook County
The second most populated county in the United States, Cook County is located in the northeastern part of the state.
Cities include, Arlington Heights, Bedford Park, Barrington and
Crestwood
- Crawford County
Bordering Indiana, Crawford County is located
in the southeast portion of Illinois. Cities include, Flatrock,
Hutsonville, Palestine and Robinson.
- Cumberland County
Located in the southeast part of Illinois. Cities include, Greenup, Jewett, Montrose
and Toledo
- DeKalb County
Located in northern Illinois. Cities include,
Cortland, DeKalb, Kingston and Sycamore.
- De Witt County
Named in honor of the former Govenor of New York, De Witt Clinton. Located in central Illinois. Cities include, Clinton, De Witt, Waynesville and Farmer City.
- Douglas County
Located in east-central Illinois. Cities include
Arcola, Atwood, Camargo and Villa Grove.
- DuPage County
Located in northeast Illinois. Cities include, Addison, Bloomingdale, Villa Park and Westmont
- Edgar County
Bordering Indiana, Edgar County
is located in the east-central part of Illinois. Cities include,
Brocton, Chrisman, Paris and Vermilion
- Edwards County
A small county located in the southeastern part of Illinois. Cities include,
Bone Gap, Salem, Albion and Grayville.
- Effingham County
Located in south-central
Illinois. Cities include, Effingham, Beecher City, Mason and
Watson.
- Fayette County
Located in south-central part of Illinois. Cities include,
Bingam, Brownstown, St. Elmo and Vandalia.
- Ford County
Located in the northeastern part of Illinois. Cities include, Paxton, Sibley, Piper City and Cabery
- Franklin County
Located in the southern part of Illinois. Cities include Benton, Macedonia, Buckner and
West Frankfort
- Fulton County
Located in the west-central part
of Illinois. Cities include, Astoria, Canton, London Mills and
Vermont.
- Gallatin County
Located in the
southeastern part of Illinois. Cities include, Equality,
Junction, New Haven and Shawneetown.
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- Greene County
Located in the
southwestern part of Illinois. Cities include, Greenfield,
Rockbridge, Wilmington and White Hall.
- Grundy County
Located in the northeastern part of Illinois.
Cites include, Coal City, Morris, Mason and Bracefiels
- Hamilton County
Located in the southeast part of Illinois. Cities include,
Bell Prarie City, Broughton, Dahlgren and McLeansboro.
- Hancock County
Located in the
west-central part of Illinoiis.
Cities include, Augusta, Bentley, Carthage and West Point
- Hardin County
Bordering Kentucky, Hardin county is
located in the southwestern part of Illinois. Cities include, Cave-in-Rock, Elizabethtown
and Rosiclare.
- Henderson County
Located in the northwestern part of
Illinois. Cities include, Briggsville, Gladstone and Gulf Port.
- Henry County
Located in the northwestern portion of the state.
Cities include, Bishop Hill, Cambridge, Coal Valley and Colona
- Iroquois County
Bordering Indiana, Iroquois County is
located in the northeastern part of Illinois. Cities include,
Beaverville, Crescent City, Loda and Sheldon.
- Jackson County
Located in southwestern Illinois. Cities include, Campbell Hill, Murphysboro, Elk Hill and Grand Tower
- Jasper County
Located in southeastern Illinois.
Cites include, Newton, Rose Hill, Wheeler and Yale.
- Jefferson County
Located in south-central Illinois.
Mt. Vernon is the county seat; other cities iclude, Belle Rive, Bluford, Nason and Woodlawn
- Jersey County
Situated in the southwestern part of Illinois. the southern
portion of the county borders with Missouri.
- Jo Daviess County
Situated on the northwestern tip of Illinois, it borders both Wisconsin and Iowa states. Cites include,
Apple River, Hanover, Stockton and Warren.
- Johnson County
Located in the south-central part of the state. Cities include, Cypress, Simpson, Vienna and New Burnside.
- Kane County
Located in northeastern Illinois. Cities include Huntley,
Montgomery, Pinetree Grove and Sleepy Hollow
- Kankakee County
Bordering Indiana, Kankakee
County is located in the northeastern part of Illinois. Cities include, Bradley, Buckingham, Union
Hill and Kankakee
- Kendall County
Located in the northeastern part
of Illinois. Cities include, Millington, Plano, Lisbon and Yorkville.
- Knox County
Located in northwestern Illinois. Cities include
Abington, Henderson, Oneida and Rio
- La Salle County
Located in north-central Illinois.
Cities include, Cedar Point, La Salle, Dana and Grand Ridge
- Lake County
Situated on the northeastern tip of Illinois,
bordering Wisconsin. Some of it's cities are, Antioch, Beach Park, Fox Lake and Green Oaks.
- Lawrence County
Bordering Indiana, Lawrence County is
located in the southeastern portion of the state. Cities include,
Bridgeport, Russelville, Birds and Lawrenceville.
- Lee County
Located in the northern part of Illinois.
Cities include, Ashton, Franklin Grove, Harmon and Amboy
- Livingston County
Located in the northeastern part
of Illinois. Cities include, Chatsworth, Emington, Flannigan and Longpoint
- Logan County
Located in west-central Illinois. Cities
include, Atlanta, Latham, Lincoln and Middletown.
- Macon County
Central Illinois. Cities include, Forsyth,
Long Creek, Macon and Mount Zion
- Macoupin County
Located in the west-central part of
Illinois. Cities include, Bunker Hill, Carlinville, Mount Clare and Staunton
- Madison County
Bordering Missouri, Madison County is located in the west-central part of Illinois. Cities include, Collinsville, East Alton, Fairmont City and Madison
- Marion County
Central Illinois. Cities include, Central
City, Walnut Hill, Patoka and Salem
- Marshall County
Northwest Illinois. Cities include,
Henry, Toluca, La Rose and Washburn
- Massac County
Southeast tip of Illinois, bordering Kentucky.
Cities are, Brookport, Joppa and Metropolis.
- McDonough County
Northwestern Illinois. Cities include,
Blandinsville, Good Hope, Prairie City and Bushnell
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- McHenry County
Bordering with Wisconsin,
McHenry County is located in the northeast part of Illinois.
Cities include, Bull Valley, Crystal Lake, Lakewood and McHenry
- McLean County
Located in the central part of
Illinois. Cities include, Colfax, Gridley, Heyworth and Hudson
- Menard County
Located in west-central Illinois. Cities include, Athens, Greenview, Petersburg and Oakford.
- Mercer County
Borders Iowa in northwest Illinois. Cities include, Boden, Burgess, Keithsburg and Petersville
- Monroe County
Located on the Missouri border in southwest Illinois. Cities include, Columbia, Waterloo and Hecker
- Montgomery County
Located in west-central Illinois. Cities include, Butler, Coalton, Hillsboro and Nokomis
- Morgan County
West-central Illinois. Cities include, Chapin, Franklin, Jacksonville and Waverly
- Moultrie County
East-central Illinois. Cities include,
Allenville, Bethany, Dalton City and Lovington.
- Ogle County
Northwest Illinois. Cities include, Davis Junction,
Hillcrest, Leaf River and Stilman Valley.
- Peoria County
Northwest Illinois. Cities include,
Bartonville, Dunlap, Kingston Mines and Peoria
- Perry County
Southweast Illinois. Cities include,
Cutler, Pinckneyville, St. Johns and Willisville.
- Piatt County
East-central Illinois. Cities include, Bement, Cisco, De Land and Monticello
- Pike County
Bordering Missouri, Pike County is located
in the southwest part of Illinois. Cities include, Barry, Florence, New Canton and Perry
- Pope County
Southeast corner of Illinois. It's cities
are Eddyville and Golconda,
- Pulaski County
Southwestern tip of Illinois bordering Kentucky. Cities include,
Olmsted, Karnak, Mounds and Ullin.
- Putnam County
Northwestern Illinois. Cities include,
Granville, Magnolia, Mark and Standard
- Randolph County
Borders Missouri in the southwest part of
Illinois. Cities include, Baldwin, Chester, Ellis Grove and Evansville.
- Richland County
Southeast part of Illinois. Cities include, Calhoun, Claremont, Noble and Parkersburg.
- Rock Island County
Bordering Iowa, Rock Island
County is located in the northwest part of Illinois. Cities include, Hampton, Hillsdale, Oak Grove and
Rock Island
- Saline County
Located in the southeast part of Illinois.
Cities include, Eldorado, Harrisburg, Raleigh and Stonefort
- Sangamon County
West-central Illinois. Cities
include, Cantrall, Chatham, Clear Lake and Dawson.
- Schuyler County
West-central Illinois. Cities include, Camden, Littleton, Rushville, and Browning
- Scott County
West-central Illinois. Cities include
Bluffs, Manchester, Glascow and Naples
- Shelby County
Borders Missouri, placing Shelby County in the
central part of the state. Cities include, Shelbyville, Cowden, Strasburg and Tower Hill.,
- St. Clair County
Borders Missouri and is in the southweat part of the state. Cities include, Alortin, Caseyville,New Athens and Sauget
- Stark County
Northwest Illinois. Cities include,
Bradford, La Fayette, Toulon and Wyoming
- Stephenson County
Borders Wisconsin in the northwest
part of the state, Cities include, Cedarville, Davis, Freeport and Pearl City.
- Tazewell County
North-central Illinois. Cities
include, Deer Creek, East Peoria, Green Valley and Tremont
- Union County
Bordering Missouri, Union County is found in the southwest corner of Illinois. Cities include, Dongola. Jonesboro, Mill Creek and Cobden.
- Vermilion County
Borders Indiana in east-central Illinois. Cities include,
Fairmont, Georgetown, Oakwood and Rankin
- Will County
Borders Indiana in the northeastern part of
Illinois. Cities include Crest Hill, Frankfort and Mokena
- Whiteside
Borders Iowa in the northewestern part of
Illinois. Cities include Sterling, Rock Falls and Tampico
- Winnebago
Borders Wisconsin in north Illinois.
Cities include Rockford, South Beloit and Winnebago
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