Map of US Counties

Adams County lies in northeastern Indiana in the United States and shares its eastern border with Ohio. It was officially established in 1836. The county seat is Decatur. According to the 2020 census, its population was 35,809, an increase of 4.1% from 34,387 in 2010. The county has four incorporated cities and towns with a ... Read more

Decatur County is a county in the U.S. state of Indiana. As of the 2020 United States Census, the population was 26,472. The county seat (and only incorporated city) is Greensburg. Decatur County overview: Name: Decatur County FIPS code: 18-031 State: Indiana Founded: 12 December 1821 (authorized)1822 (organized) Named for: Stephen Decatur, Jr. Seat: Greensburg ... Read more

Henry County is a county located in east central Indiana, United States. As of 2020, the population was 48,914. The county seat and largest and only city is New Castle. Henry County is the main setting of the novel Raintree County by Ross Lockridge Jr. Henry County overview: Name: Henry County FIPS code: 18-065 State: ... Read more

Madison County is a county in the U.S. state of Indiana. The 2020 census states the population is standing at 130,129. The county seat since 1836 has been Anderson, one of three incorporated cities within the county. Madison County is included in the Indianapolis-Carmel-Anderson, IN Metropolitan Statistical Area. Madison County overview: Name: Madison County FIPS ... Read more

Porter County is a county in the U.S. state of Indiana. As of 2020, the population was 173,215, making it the 10th most populous county in Indiana. The county seat is Valparaiso. The county is part of Northwest Indiana, as well as the Chicago metropolitan area. Porter County is the site of much of the ... Read more

Tipton County is a county in the U.S. state of Indiana, located north of the state capital of Indianapolis. According to the 2010 census, it had a population of 15,936, a decrease of 3.9% from its 2000 population of 16,577. Its county seat is Tipton. The county has four incorporated towns with a total population ... Read more

Appanoose County is a county in the U.S. state of Iowa. As of the 2020 census, the population was 12,317. Its county seat is Centerville. Appanoose County overview: Name: Appanoose County FIPS code: 19-007 State: Iowa Founded: 1843 Named for: Chief Appanoose Seat: Centerville Largest city: Centerville Total Area: 516 sq mi (1,340 km²) Land Area: 497 sq mi (1,290 km²) ... Read more

Clarke County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 9,748. The county seat is Osceola. The county was formed in January 1846, one of twelve counties established by legislative action in a comprehensive act. It was named for James Clarke, a Governor of the ... Read more

Fremont County is a county located in the U.S. state of Iowa. As of the 2020 census the population was 6,605, making it the state’s seventh-least populous county. The county seat is Sidney. The county was formed in 1847 and named for the military officer John C. Fremont. Fremont County overview: Name: Fremont County FIPS ... Read more

Johnson County is located in the U.S. state of Iowa. As of the 2020 census, the population was 152,854, making it the fourth-most populous county in Iowa. The county seat is Iowa City, home of the University of Iowa. Johnson County is included in the Iowa City metropolitan area, which is also included in the ... Read more

Monroe County is a county located in the south central part of the U.S. state of Iowa. In the early 20th century, it was a center of bituminous coal mining and in 1910 had a population of more than 25,000. As mining declined, people moved elsewhere for work. In the 2020 census, the population was ... Read more

Sioux County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 35,872. Its county seat is Orange City. Its largest city is Sioux Center. Sioux County overview: Name: Sioux County FIPS code: 19-167 State: Iowa Founded: 1851 Named for: Sioux people Seat: Orange City Largest city: ... Read more