Map of Adams County, Iowa

Adams County is a county in the U.S. state of Iowa. As of the 2020 census, the population was 3,704, making it Iowa’s least-populous county. Its county seat is Corning.

Adams County overview:
Name:	Adams County
FIPS code:	19-003
State:	Iowa
Founded:	March 12, 1853
Named for:	John Adams
Seat:	Corning
Largest city:	Corning
Total Area:	426 sq mi (1,100 km²)
Land Area:	423 sq mi (1,100 km²)
Total Population:	3,704
Population Density:	8.7/sq mi (3.4/km²)
Time zone:	UTC−6 (Central)
Summer Time Zone (DST):	UTC−5 (CDT)
Website:	adamscounty.iowa.gov

Adams County location map. Where is Adams County?

Adams County location on the U.S. Map. Where is Adams County. — Location of Adams County in the the United States.

Adams County location on the Iowa map. Where is Adams County. — Location of Adams County in Iowa.

History

Adams County was established by the state legislature in 1851 and named in honor of the second President of the United States, John Adams, or his son, the sixth President, John Quincy Adams (sources differ). The county was finally organized and separated from Pottawattamie County on March 12, 1853. Its original size was later reduced by the creation of Montgomery and Union counties.

The first county seat was Quincy, Iowa. In 1872, it was moved to Corning.

Adams County Road Map

Adams CountyStreet Map. — Street map of Adams County, Iowa. Source: OpenStreetMap (OSM)

Adams CountyMap — Adams Countypolitical map.

Geography

According to the U.S. Census Bureau, the county has a total area of 426 square miles (1,100 km), of which 423 square miles (1,100 km) is land and 2.1 square miles (5.4 km) (0.5%) is water.