Delaware County | |
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![]() 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 | |
Country | ![]() |
State | ![]() |
Founded | 1837 |
Named for | State of Delaware |
Seat | Manchester |
Largest city | Manchester |
Area | |
• Total | 579 sq mi (1,500 km2) |
• Land | 578 sq mi (1,500 km2) |
• Water | 1.2 sq mi (3 km2) 0.2% |
Population (2020) | |
• Total | 17,488 |
• Density | 30/sq mi (12/km2) |
Time zone | UTC−6 (Central) |
• Summer (DST) | UTC−5 (CDT) |
Congressional district | 2nd |
Website | delawarecounty |
Delaware County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 17,488.[1] The county seat is Manchester.[2] The county takes its name after the U.S. state of Delaware.