Hardin County, Iowa

Hardin County
Location within the U.S. state of Iowa
Iowa's location within the U.S.
Coordinates: 42°22′26″N 93°14′41″W / 42.373888888889°N 93.244722222222°W / 42.373888888889; -93.244722222222
Country United States
State Iowa
Founded1851
Named afterJohn J. Hardin
SeatEldora
Largest cityIowa Falls
Area
  Total
570 sq mi (1,500 km2)
  Land569 sq mi (1,470 km2)
  Water0.7 sq mi (2 km2)  0.1%
Population
 (2020)
  Total
16,878
  Estimate 
(2023)
16,463
  Density30/sq mi (11/km2)
Time zoneUTC−6 (Central)
  Summer (DST)UTC−5 (CDT)
Congressional district2nd
Websitewww.hardincountyia.gov

Hardin County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 16,878. The county seat is Eldora. The county was named in honor of Col. John J. Hardin, of Illinois, who was killed in the Mexican–American War.