| Union Center | |
| Settlement Type: | Census-designated place & unincorporated community |
| Pushpin Map: | South Dakota#USA |
| Pushpin Map Caption: | Location within the state of South Dakota |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | South Dakota |
| Subdivision Type2: | County |
| Subdivision Name2: | Meade |
| Established Title: | Founded |
| Established Date: | 1927 |
| Named For: | Farmers' Union |
| Unit Pref: | Imperial |
| Population As Of: | 2000 |
| Population Density Km2: | auto |
| Timezone: | Mountain (MST) |
| Utc Offset: | -7 |
| Timezone Dst: | MDT |
| Utc Offset Dst: | -6 |
| Elevation Ft: | 2913 |
| Coordinates: | 44.5633°N -102.6644°W |
| Postal Code Type: | ZIP codes |
| Postal Code: | 57787 |
| Area Code: | 605 |
| Blank Name: | FIPS code |
| Blank Info: | 46-65540[1] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | [{{gnis3|2628851}} 2628851] [{{gnis3|1258697}} 1258697] |
Union Center is a small rural village in Meade County, South Dakota, United States. It is an unincorporated community, which was designated as part of the U.S. Census Bureau's Participant Statistical Areas Program on June 10, 2010.[2] It was not counted separately during the 2000 Census,[3] but is scheduled for inclusion in the 2010 Census.[4] It has the post office which serves the area covered by ZIP code 57787,[5] and three small businesses.
Union Center was founded in 1927 by the Farmers' Union as one of their first enterprises in South Dakota.