Map of US Counties

McDonough County is a county in the U.S. state of Illinois. According to the 2010 census, it had a population of 32,612. Its county seat is Macomb. The Macomb, IL Micropolitan Statistical Area includes all of McDonough County. McDonough County overview: Name: McDonough County FIPS code: 17-109 State: Illinois Founded: 1826 Named for: Thomas Macdonough ... Read more

Putnam County is the least extensive county in the U.S. state of Illinois. According to the 2010 census, it had a population of 6,006. The county seat is Hennepin. The county was formed in 1825 out of Fulton County and named after Israel Putnam, who was a general in the American Revolution. Putnam County is ... Read more

Warren County is a county in the U.S. state of Illinois. According to the 2010 census, it had a population of 17,707. Its county seat is Monmouth. Warren County overview: Name: Warren County FIPS code: 17-187 State: Illinois Founded: 1825 Named for: Joseph Warren Seat: Monmouth Largest city: Monmouth Total Area: 543 sq mi (1,410 km²) Land Area: ... Read more

Carroll County is a county located in the U.S. state of Indiana. As of the 2010 United States Census, the population was 20,155. The county seat is Delphi. Carroll County is part of the Lafayette, Indiana, Metropolitan Statistical Area. Carroll County overview: Name: Carroll County FIPS code: 18-015 State: Indiana Founded: 17 January 1828 (authorized)28 ... Read more

Franklin County is a county on the eastern border of the U.S. state of Indiana. In the 2020 United States Census, the county population was 22,785. The county seat is the town of Brookville. Franklin County is part of the Cincinnati, OH–KY–IN Metropolitan Statistical Area. The only incorporated city in Franklin County is Batesville, which ... Read more

Jennings County is a county located in the U.S. state of Indiana. As of 2020, the population was 27,613. The county seat is Vernon. Jennings County overview: Name: Jennings County FIPS code: 18-079 State: Indiana Founded: 1817 Named for: Jonathan Jennings Seat: Vernon Largest city: North Vernon Total Area: 378.34 sq mi (979.9 km²) Land Area: 376.58 sq mi (975.3 km²) ... Read more

Morgan County is a county located in the U.S. state of Indiana. As of the 2010 United States Census, the population was 68,894. The county seat (and only incorporated city) is Martinsville. Morgan County is between Indianapolis, in Marion County, and Bloomington in Monroe County. It is included in the Indianapolis-Carmel–Anderson, IN Metropolitan Statistical Area. ... Read more

St. Joseph County, commonly called St. Joe County by residents, is a county located in the U.S. state of Indiana. As of the 2020 census, the population was 272,912, making it the fifth-most populous county in Indiana. Formed in 1830, it was named for the St. Joseph River which flows through it to Lake Michigan. ... Read more

Warrick County is a county located in the U.S. state of Indiana. As of 2020, the population was 63,898. The county seat is Boonville. It was organized in 1813 and was named for Captain Jacob Warrick, an Indiana militia company commander killed in the Battle of Tippecanoe in 1811. It is one of the ten ... Read more

Buena Vista County (/ˈbjuːnə ˈvɪstə/; Spanish pronunciation: [ˈbwena ˈβista]) is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 20,823. Its county seat is Storm Lake. The county is named for the final victory of Field General Zachary Taylor in the Mexican–American War. Buena Vista County comprises the ... Read more

Decatur County (/dɪˈkeɪtər/) is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 7,645. The county seat is Leon. This county is named for Stephen Decatur Jr., a hero in the War of 1812. Decatur County overview: Name: Decatur County FIPS code: 19-053 State: Iowa Founded: 1846 ... Read more

Harrison County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 14,582. The county seat is Logan. The county was formed in 1851. It was named for ninth US President William Henry Harrison. Harrison County is included in the Omaha–Council Bluffs, NE-IA Metropolitan Statistical Area. Harrison ... Read more