Map of US Counties

Jefferson County is a county located in the U.S. state of Iowa. As of the 2020 United States Census, the population was 15,663. The county seat is Fairfield. The county was formed in January 1839, and was named for U.S. President Thomas Jefferson. Jefferson County comprises the Fairfield, IA Micropolitan Statistical Area. Jefferson County overview: ... Read more

Monona County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 8,751. The county seat is Onawa. Monona County overview: Name: Monona County FIPS code: 19-133 State: Iowa Founded: 1851 Seat: Onawa Largest city: Onawa Total Area: 699 sq mi (1,810 km²) Land Area: 694 sq mi (1,800 km²) Total Population: 8,751 ... Read more

Shelby County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 11,746. The county seat is Harlan. Its name is in honor of Isaac Shelby, the first Governor of Kentucky. Shelby County overview: Name: Shelby County FIPS code: 19-165 State: Iowa Founded: 1851 Named for: Isaac ... Read more

Wright County is a county in the U.S. state of Iowa. As of the 2020 census, the population was 12,943. The county seat is Clarion. The county organization became effective in January 1851, and is believed to be named either after Silas Wright, a governor of New York, or Joseph Albert Wright, a governor of ... Read more