Des Moines County, Iowa

Des Moines County
County
Des Moines County Courthouse
Location within the U.S. state of Iowa
Iowa's location within the U.S.
Coordinates: 40°55′40″N 91°11′02″W / 40.9278°N 91.1839°W / 40.9278; -91.1839
Country	United States
State	Iowa
Founded	1834
Named for	Des Moines River
Seat	Burlington
Largest city	Burlington
Area
• Total	430 sq mi (1,100 km2)
• Land	416 sq mi (1,080 km2)
• Water	14 sq mi (40 km2)  3.2%
Population  (2020)
• Total	38,910
• Density	90/sq mi (35/km2)
Time zone	UTC−6 (Central)
• Summer (DST)	UTC−5 (CDT)
Area code	319
Congressional district	1st
Website	www.desmoinescounty.iowa.gov

Des Moines County is located in the U.S. state of Iowa. As of the 2020 census, the population was 38,910.^[1] The county seat and largest city is Burlington.^[2] It is one of Iowa's two original counties along with Dubuque County; both were organized by the Michigan Territorial legislature in 1834.

Des Moines County is part of the Burlington, IA–IL Micropolitan Statistical Area.

Des Moines County should not be confused with the city of Des Moines, which is the capital of Iowa. Des Moines County sits on Iowa's eastern border alongside the Mississippi River. The city of Des Moines is in Polk County in central Iowa. Both places derive their name from the Des Moines River, which flows through the city of Des Moines and originally flowed through the county. When the county was divided early in Iowa's history, the river ended up further west, forming the border between Lee County, Iowa and the state of Missouri.