| Official Zip Code Name | Union Center |
| Zip Code State | South Dakota |
| Primary County: | Meade |
| Area Code | 605 |
| Current Population: | 37081 |
| Racial Majority: | White 62.49% |
| Median Household Income | $55618 |
| Average Adjusted Gross Income | $89060 |
| Time Zone: | 7 |
| Elevation Range | 2975 ft. |
| Area | 627.24 Sqm. |
| Coordinates(Y,X) | 44.681939, -102.657315 |