Delaware County, Iowa

Delaware County
Location within the U.S. state of Iowa
Iowa's location within the U.S.
Coordinates: 42°28′10″N 91°22′13″W / 42.469444444444°N 91.370277777778°W / 42.469444444444; -91.370277777778
Country United States
State Iowa
Founded1837
Named afterState of Delaware
SeatManchester
Largest cityManchester
Area
  Total
579 sq mi (1,500 km2)
  Land578 sq mi (1,500 km2)
  Water1.2 sq mi (3 km2)  0.2%
Population
 (2020)
  Total
17,488
  Density30/sq mi (12/km2)
Time zoneUTC−6 (Central)
  Summer (DST)UTC−5 (CDT)
Congressional district2nd
Websitedelawarecounty.iowa.gov

Delaware County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 17,488. The county seat is Manchester. The county takes its name after the U.S. state of Delaware.