File:Beresford,_SD_depot_from_NW_2_long.JPG · Wikimedia Commons · See Wikimedia Commons
Union County
Sign in to saveAlso known as Union County, South Dakota, Union County, SD
county in South Dakota, United States
Key facts
- Country
- United States
- State
- South Dakota
- Founded
- April 10, 1862
- Seat
- Elk Point
- Largest community
- Dakota Dunes
- Total
- 467 sq mi (1,210 km )
- Land
- 461 sq mi (1,190 km )
- Water
- 6.6 sq mi (17 km ) 1.4%
- Estimate 2025
- 17,402
- Density
- 36.5/sq mi (14.1/km )
- Time zone
- UTC−6 ( Central )
- Summer dst
- UTC−5 ( CDT )
- Congressional district
- At-large
- Website
- unioncountysd .org
via Wikipedia infobox
Official website
Union County, South Dakota | Home
Official website of Union County, South Dakota. Find Commission Minutes, County Ordinances, and contact information.
unioncountysd.org →Link to the official site · 7,339 chars · not written by Vinony
Wikidata facts
- Population
- 16811
- Area
- 1210
- Official website
- unioncountysd.org
- Image
- Beresford, SD depot from NW 2 long.JPG
- Households
- 6864
Show 5 more facts
- Commons category
- Union County, South Dakota
- inception
- 1862-01-01
- water as percent of area
- 1.4
- native label
- Union County
- per capita income
- 44279
Sources (8)
via Wikidata · CC0
~6 min read
Article
Union County is the southernmost county in the U.S. state of South Dakota. As of the 2020 census, the population was 16,811, making it the 13th most populous county in South Dakota. Its county seat has been Elk Point since April 30, 1865. Originally named Cole County, its name was changed to Union on January 7, 1864, because of Civil War sentiment.
Union County is part of the Sioux City metropolitan area. The Progressive Farmer rated Union County second in the "2006 Best Place to Live Survey" in the U.S., because "its schools are good, its towns neat and its people friendly".