County Locations (D-J)

Douglas County is a county located in the U.S. state of Illinois. As of the 2020 United States Census, the population was 19,740. The county seat is Tuscola. Wikipedia

Area: 417 mi²

Founded: 1859

Population: 19,551 (2020)

County seat: Tuscola

Unemployment rate: 3.2% (Mar 2022)

DuPage County is a county in the U.S. state of Illinois, and one of the collar counties of the Chicago metropolitan area. As of the 2020 census, the population was 932,877, making it Illinois' second-most populous county. Its county seat is Wheaton. Wikipedia

Area: 336 mi²

Population: 926,005 (2020)

County seat: Wheaton

Area code: Area code 630

Points of interest: The Morton Arboretum, Cantigny Park, MORE

Edgar County is a county located in the U.S. state of Illinois. As of the 2020 United States Census, the population was 16,866. Its county seat is Paris. Wikipedia

Area: 624 mi²

Founded: January 3, 1823

Population: 17,272 (2020)

County seat: Paris

Unemployment rate: 3.6% (Mar 2022)

Congressional district: 15th

Cities: Paris, Chrisman, Brocton, Kansas, Redmon, Vermilion, Hume, Metcalf

Edwards County is a county located in the U.S. state of Illinois. As of the 2010 census, the population was 6,721. Its county seat is Albion. Wikipedia

Area: 223 mi²

Founded: 1814

Population: 6,431 (2020)

County seat: Albion

Congressional district: 15th

Unemployment rate: 4.1% (Mar 2022)

Cities: Albion, West Salem, Bone Gap, Browns

Effingham County is located in the south central part of the U.S. state Illinois. As of the 2020 census, the population was 34,668. Its county seat and largest city is Effingham. Wikipedia

Area: 480 mi²

Founded: 1831

Population: 34,151 (2020)

Unemployment rate: 3.2% (Mar 2022)

County seat: Effingham

Fayette County is a county located in the U.S. state of Illinois. As of the 2010 census, the population was 22,140. Its county seat is Vandalia. Ramsey Lake State Recreation Area is located in the northwest part of this county. Wikipedia

Area: 725 mi²

Founded: 1821

Population: 21,418 (2020)

County seat: Vandalia

Unemployment rate: 4.7% (Mar 2022)

Cities: Vandalia, Brownstown, Saint Elmo, Ramsey, Saint Peter, Bingham, LaClede

Ford County is a county located in the U.S. state of Illinois. According to the 2010 United States Census, it had a population of 14,081. Its county seat is Paxton. Wikipedia

Area: 486 mi²

Founded: 1859

Population: 13,155 (2020)

County seat: Paxton

Unemployment rate: 4.1% (Mar 2022)

Cities: Paxton, Gibson City, Melvin, Piper City, Roberts, Sibley, Kempton, Elliott

Franklin County is a county in Southern Illinois. At the 2020 census, it had a population of 37,804. The largest city is West Frankfort and the county seat is Benton. This area of Southern Illinois is known locally as "Little Egypt". Wikipedia

Area: 431 mi²

Founded: January 2, 1818

Population: 38,688 (2020)

County seat: Benton

Unemployment rate: 5.7% (Mar 2022)

Fulton County is a county in the U.S. state of Illinois. According to the 2010 census, it had a population of 37,069. Its county seat is Lewistown, and the largest city is Canton. Fulton County comprises the Canton, IL Micropolitan Statistical Area, which is part of the Peoria-Canton, IL Combined Statistical Area. Wikipedia

Area: 883 mi²

Founded: 1823

Population: 34,654 (2020)

County seat: Lewistown

Colleges and Universities: Spoon River College, Innovations Design Academy

Gallatin County is a county located in the U.S. state of Illinois. According to the 2020 census, it has a population of 4,828, making it the third-least populous county in Illinois. Its county seat is Shawneetown. It is located in the southern portion of Illinois known locally as "Little Egypt". Wikipedia

Area: 328 mi²

Founded: 1812

Population: 4,983 (2020)

County seat: Shawneetown

Congressional district: 15th

Unemployment rate: 5.1% (Mar 2022)

Cities: Shawneetown, Ridgway, Equality, Junction, Old Shawneetown, New Haven, Omaha

Greene County is a county located in the U.S. state of Illinois. According to the 2020 United States Census, it has a population of 11,843. Its county seat is Carrollton. A notable archaeological area, the Koster Site, has produced evidence of more than 7,000 years of human habitation. Wikipedia

Area: 546 mi²

Founded: 1821

Population: 12,988 (2020)

County seat: Carrollton

Unemployment rate: 4.0% (Mar 2022)

Named for: Nathanael Greene

Cities: Carrollton, White Hall, Roodhouse, Greenfield, Kane, Rockbridge, Hillview, Eldred, Wilmington

Grundy County is a county in the U.S. state of Illinois. According to the 2010 census, it has a population of 50,063. Its county seat is Morris. Grundy County is part of the Chicago-Naperville-Elgin, IL-IN-WI Metropolitan Statistical Area. Wikipedia

Area: 430 mi²

Founded: February 17, 1841

Population: 50,798 (2020)

County seat: Morris

Unemployment rate: 4.1% (Mar 2022)

Hamilton County is a county located in the U.S. state of Illinois. At the 2020 census, its population was 7,993. Its county seat is McLeansboro. It is located in the southern portion of the state known locally as "Little Egypt". Wikipedia

Area: 436 mi²

Founded: 1821

Population: 8,151 (2020)

County seat: McLeansboro

Unemployment rate: 3.8% (Mar 2022)

Named for: Alexander Hamilton

Cities: McLeansboro, Dahlgren, Broughton, Belle Prairie City

Hancock County is a county in the U.S. state of Illinois. According to the 2020 census, it has a population of 17,620. Its county seat is Carthage, and its largest city is Hamilton. The county is made up of rural towns with many farmers. Wikipedia

Area: 814 mi²

Founded: 1825

Population: 17,820 (2020)

County seat: Carthage

Unemployment rate: 3.9% (Mar 2022)

Hardin County is a county located in the U.S. state of Illinois. According to the 2020 census, it has a population of 3,649, making it the least populous county in Illinois. Its county seat is Elizabethtown. Hardin County is located in the part of the state known as Little Egypt. Wikipedia

Area: 182 mi²

Founded: 1839

Population: 3,890 (2020)

County seat: Elizabethtown

Unemployment rate: 5.6% (Mar 2022)

Cities: Elizabethtown, Rosiclare, Cave-In-Rock

Henderson County is a county located in the U.S. state of Illinois. According to the 2010 United States Census, it has a population of 7,331. Its county seat is Oquawka. Henderson County is part of the Burlington, IA–IL Micropolitan Statistical Area. Wikipedia

Area: 395 mi²

Founded: 1841

Population: 6,737 (2020)

County seat: Oquawka

Congressional district: 17th

Unemployment rate: 4.4% (Mar 2022)

Cities: Oquawka, Stronghurst, Gladstone, Biggsville, Gulfport, Lomax, Raritan, Media, Carman

Henry County is a county located in the U.S. state of Illinois. The 2010 United States Census, listed its population at 50,486. Its county seat is Cambridge. Henry County is included in the Davenport-Moline-Rock Island, IA-IL Metropolitan Statistical Area. Wikipedia

Area: 826 mi²

Founded: 1825

Population: 49,032 (2020)

County seat: Cambridge

Unemployment rate: 4.5% (Mar 2022)

Iroquois County is a county located in the northeast part of the U.S. state of Illinois. According to the 2020 United States Census, it has a population of 27,077. It is the only county in the United States to be named Iroquois, after the American Indian people. The county seat is Watseka. Wikipedia

Area: 1,119 mi²

Founded: 1833

Population: 27,437 (2020)

County seat: Watseka

Unemployment rate: 4.9% (Mar 2022)

Jackson County is a county located in the U.S. state of Illinois with a population of 52,974 at the 2020 census. Its county seat is Murphysboro, and its most populous city is Carbondale, home to the main campus of Southern Illinois University. Wikipedia

Area: 602 mi²

Population: 57,517 (2020)

County seat: Murphysboro

Unemployment rate: 4.3% (Mar 2022)

Colleges and Universities: Southern Illinois University, SIU Music Department

Jasper County is a county located in the U.S. state of Illinois. According to the 2010 census, it has a population of 9,698. Its county seat is Newton. Wikipedia

Area: 498 mi²

Founded: 1831

Population: 9,547 (2020)

County seat: Newton

Unemployment rate: 3.8% (Mar 2022)

Congressional district: 15th

Cities: Newton, Sainte Marie, Willow Hill, Rose Hill, Hidalgo, Yale, Wheeler, West Liberty, Hunt City