Dewey County, South Dakota ZIP Codes
- ZIP records
7 - Cities represented
7 - Sum of listed ZIP population estimates
8,754
Population sum includes positive estimates in these ZIP records; it is not an official county population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | Population estimate |
|---|---|---|---|
| 1 | 57625 | Eagle Butte | 3,775 |
| 2 | 57601 | Mobridge | 3,422 |
| 3 | 57656 | Timber Lake | 1,000 |
| 4 | 57652 | Ridgeview | 265 |
| 5 | 57661 | Whitehorse | 177 |
| 6 | 57636 | Lantry | 104 |
| 7 | 57630 | Glencross | 11 |
Cities in Dewey County
ZIP Directory
Browse all ZIP data for South Dakota
Methodology: Records are grouped by the source file's listed county and state. Population sums add positive ZIP-level estimates and are not official county totals; city counts use distinct city labels in the source.