| Official Zip Code Name | Yankton |
| Zip Code State | South Dakota |
| Primary County: | Yankton |
| Area Code | 605 |
| Current Population: | 37081 |
| Racial Majority: | White 62.49% |
| Median Household Income | $55618 |
| Average Adjusted Gross Income | $89060 |
| Time Zone: | 6 |
| Elevation Range | 1380 ft. |
| Area | 111.276 Sqm. |
| Coordinates(Y,X) | 42.935337, -97.457000 |