Union County, South Dakota
Union County profile, demographic data, and geographic information.
Cities & Towns in Union County
Constituent municipalities and census communities located within Union County.
| City / Town Name | Classification | Census GEOID | Land Area |
|---|---|---|---|
| Alcester city | City | 4600700 | 1.03 sq mi |
| Beresford city | City | 4604980 | 1.78 sq mi |
| Dakota Dunes CDP | CDP | 4615256 | 2.47 sq mi |
| Elk Point city | City | 4618620 | 1.55 sq mi |
| Jefferson city | City | 4632700 | 0.51 sq mi |
| North Sioux City city | City | 4645700 | 3.34 sq mi |
| Richland CDP | CDP | 4654750 | 5.65 sq mi |