Dubuque County, Iowa
Dubuque County, Iowa | |
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The Dubuque County Courthouse is an example of Beaux-Arts architecture. | |
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Seal | |
Location within the U.S. state of Iowa | |
| Coordinates: 42°27′49″N 90°52′44″W / 42.463481°N 90.878771°W | |
| Country | United States |
| State | Iowa |
| Founded | October 1, 1834 |
| Named after | Julien Dubuque |
| Seat | Dubuque |
| Largest city | Dubuque |
| Area | |
• Total | 616.461 sq mi (1,596.63 km2) |
| • Land | 608.299 sq mi (1,575.49 km2) |
| • Water | 8.162 sq mi (21.14 km2) 1.32% |
| Population (2020) | |
• Total | 99,266 |
• Estimate (2024) | 99,242 |
| • Density | 163.19/sq mi (63.007/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Area code | 563 |
| Congressional district | 2nd |
| Website | dubuquecountyiowa.gov |
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Dubuque County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 99,266, and was estimated to be 99,242 in 2024, making it the ninth-most populous county in Iowa. The county seat is Dubuque. The county is named for Julien Dubuque, the first European settler of Iowa. Dubuque County comprises the Dubuque, IA Metropolitan statistical area.