Hamlin County, South Dakota ZIP Codes
- ZIP records
5 - Cities represented
5 - Sum of listed ZIP population estimates
5,138
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 | 57223 | Castlewood | 1,429 |
| 2 | 57248 | Lake Norden | 1,295 |
| 3 | 57221 | Bryant | 1,158 |
| 4 | 57241 | Hayti | 936 |
| 5 | 57242 | Hazel | 320 |
Cities in Hamlin 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.