Adams County, Iowa

Adams County
Location within the U.S. state of Iowa
Iowa's location within the U.S.
Coordinates: 41°01′45″N 94°41′57″W / 41.029166666667°N 94.699166666667°W / 41.029166666667; -94.699166666667
Country United States
State Iowa
FoundedMarch 12, 1853
Named afterJohn Adams
SeatCorning
Largest cityCorning
Area
  Total
426 sq mi (1,100 km2)
  Land423 sq mi (1,100 km2)
  Water2.1 sq mi (5 km2)  0.5%
Population
 (2020)
  Total
3,704
  Estimate 
(2023)
3,544
  Density8.7/sq mi (3.4/km2)
Time zoneUTC−6 (Central)
  Summer (DST)UTC−5 (CDT)
Congressional district3rd
Websiteadamscounty.iowa.gov

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