Douglas County, South Dakota
Douglas County, South Dakota, has 2,888 residents (July 2025 estimate). Its county seat is Armour. It uses Central Time and covers 432 sq mi (1,118 km²) of land.
- Resident population, July 2025
- 2,888
- Land area
- 432 sq mi (1,118 km²)
- County seat or government
- Armour
- Time zone
- Central TimeUTC-06:00 in January; UTC-05:00 in July
- Median household income
- $86,442 ± $7,842
- Median home value
- $166,900 ± $22,047
- Median rent, with utilities
- $877 ± $280
- Homes lived in by their owners
- 76.7% ± 2.5 points
- County type
- County
- Metro or micro area
- Outside any metro or micro areaNext to: Mitchell, SD micro area
- Water area
- 1.87 sq mi (4.83 km²)
- State
- South Dakota
- County code (FIPS)
- 46043
- Coordinates (central point)
- 43.391506, -98.358433
These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.
Time zones in Douglas County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Central TimeAmerica/Chicago | UTC-06:00 in January; UTC-05:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.
ZIP Code areas, largest first
- 573692,630 people
- 573662,598 people
- 573281,290 people
- 573131,220 people
- 57330594 people
- 57331231 people
- 5734439 people
- 573644 people
8 ZIP Code areas overlap Douglas County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.
Official county information
We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
Townships in Douglas County, largest first
- Walnut Grove Township183 people
- Chester Township145 people
- Grandview Township133 people
- Valley Township133 people
- Iowa Township117 people
- Belmont Township97 people
- Holland Township97 people
- Washington Township73 people
- Clark Township70 people
- Independence Township70 people
- Garfield Township66 people
- East Choteau Township47 people
All 14
- Joubert Township35 people
- Lincoln Township5 people
People counts are American Community Survey 2020–2024 5-year estimates. All townships in South Dakota, by county
School districts in Douglas County, largest first
- Platte-Geddes School District 11-52,999 people
- Parkston School District 33-32,986 people
- Corsica-Stickney School District 21-32,080 people
- Tripp-Delmont School District 33-51,367 people
- Armour School District 21-11,038 people
Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.
Cities, towns and communities, largest first
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Corsica, South Dakota (city)699 people
- Armour, South Dakota (city)675 people
- Delmont, South Dakota (city)183 people
- New Holland, South Dakota (CDP)4 people
- Greenwood Colony, South Dakota (CDP)0 people
- Harrison, South Dakota (CDP)0 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Charles Mix County, South Dakota17 mi southwest
- Davison County, South Dakota22 mi northeast
- Aurora County, South Dakota26 mi northwest
- Hutchinson County, South Dakota31 mi east
Before using this answer on a form
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