Douglas County, South Dakota
Douglas County: County in South Dakota, United States
About
Douglas County is a county located in the U.S. state of South Dakota. As of the 2010 census, the population was 3,002 and a population density of 3 people per km². After 10 years in 2020 county had an estimated population of 2,906 inhabitants. Its county seat is Armour. The county was created 152 years ago in 1872.

Quick Facts about Douglas County
Population : | 2,906 (2020) |
Country : | United States of America |
State : | South Dakota (United States) |
Different from : | Douglas County, Douglas County, Douglas County, Douglas County, Douglas County, Douglas County, Douglas County, Douglas County, Douglas County, Douglas County, Douglas County |
Area : | 1124 km2 |
Water as percent of area : | 0.4% |
Land as percent of area : | 99.6% |
Named for : | Stephen A. Douglas |
Capital : | Armour |
Establishment : | January 01, 1873 |
Time Zone : | America/Chicago |
Local time : | 11:20:32 (22nd February 2025) |
Density : | 3 Pop. per km² as of 2020 |
Population growth : | -3.3% (2010-2020) |


Geography
Douglas County is located at 43°23'13"N 98°21'58"W (43.3869200, -98.3661000). It has 4 neighbors: Aurora County, Charles Mix County, Davison County and Hutchinson County.
Douglas County map
The largest city of Douglas County is Armour with a population of 666. Other cities include, Corsica population 569 and Delmont population 215. See all Douglas County cities & populated places.
Douglas County Populated Places
Cities, towns, neighborhoods & other populated places in Douglas County.
City Name | Population | Title |
---|---|---|
Armour | 666 | City in and county seat of Douglas County, South Dakota, United States |
Corsica | 569 | City in South Dakota, United States |
Delmont | 215 | City in Douglas County, South Dakota, United States |
Joubert | 126 | Township in Douglas County, South Dakota |
Harrison | 38 | Census-designated place in South Dakota |
Hillside | 31 | Township in Edmunds County, South Dakota |
Douglas County has 4 neighbours.
- Aurora County county in South Dakota, United States
- Charles Mix County county in South Dakota, United States of America
- Davison County county in South Dakota, United States of America
- Hutchinson County county in South Dakota, United States of America
- Armour
Demographics
According to census records, the population of Douglas County decreased by 3.3% in 10 years.
Year | Population | % Change | Method |
2010 | 3,002 | - | census |
2011 | 2,974 | -0.94% | estimation process |
2012 | 2,948 | -0.88% | estimation process |
2013 | 2,974 | 0.87% | estimation process |
2014 | 2,928 | -1.57% | estimation process |
2015 | 2,952 | 0.81% | estimation process |
2016 | 2,919 | -1.13% | estimation process |
2017 | 2,927 | 0.27% | estimation process |
2018 | 2,926 | -0.03% | estimation process |
2019 | 2,921 | -0.17% | estimation process |
2020 | 2,906 | -0.52% | estimation process |
Other places with the same name (12)
- Douglas County , Nebraska county in Oregon, United States with a population of 574,332 people.
- Douglas County , Colorado county in Colorado, United States with a population of 360,750 people.
- Douglas County , Georgia county in Georgia, United States with a population of 147,988 people.
- Douglas County , Kansas county in Kansas, United States with a population of 122,530 people.
- Douglas County , Oregon county in Oregon, United States with a population of 111,364 people.
- Douglas County , Nevada county in Nevada, United States with a population of 49,088 people.
- Douglas County , Wisconsin county in Wisconsin, United States with a population of 43,702 people.
- Douglas County , Washington county in the state of Washington, United States with a population of 43,560 people.
- Douglas County , Minnesota county in Minnesota, United States with a population of 38,328 people.
- Douglas County , Illinois county in Illinois, United States with a population of 19,510 people.
- Douglas County , Missouri county in Missouri, United States with a population of 13,344 people.
South Dakota Other Counties (more counties)
County Name | Population | Title |
---|---|---|
Minnehaha County | 196,659 | County in South Dakota, United States of America |
Sioux Falls | 157,584 | The largest city in South Dakota. |
Pennington County | 115,926 | County in South Dakota, United States of America |
Rapid City | 77,503 | The second most populous city in South Dakota. |
Lincoln County | 63,019 | County in South Dakota, United States |
Brown County | 38,738 | County in South Dakota, United States |
Brookings County | 35,603 | County in South Dakota, United States of America |
Meade County | 28,588 | County in South Dakota, United States |
Codington County | 28,186 | County in South Dakota, United States of America |
Lawrence County | 26,221 | County in South Dakota, United States |
Yankton County | 22,742 | County in South Dakota, United States |
Watertown | 22,303 | City in and county seat of Codington County, South Dakota, United States |
Davison County | 19,812 | County in South Dakota, United States of America |
Beadle County | 18,513 | County in South Dakota, United States |
Hughes County | 17,336 | County in Oklahoma, United States |
Union County | 16,192 | County in South Dakota, United States |