Day County, South Dakota ZIP Codes
- ZIP records
7 - Cities represented
7 - Sum of listed ZIP population estimates
5,426
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 | 57274 | Webster | 2,621 |
| 2 | 57273 | Waubay | 1,165 |
| 3 | 57219 | Bristol | 552 |
| 4 | 57239 | Grenville | 358 |
| 5 | 57468 | Pierpont | 279 |
| 6 | 57261 | Roslyn | 277 |
| 7 | 57422 | Andover | 174 |
Cities in Day 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.