The Watertown, SD MSA has 19 ZIP codes, listed below in numerical order. Sort this list by county or by population.
| ZIP Code | Place Name | County | Type |
|---|---|---|---|
| ZIP 57201 | Watertown | Codington County | Standard |
| ZIP 57212 | Arlington | Kingsbury County | Standard |
| ZIP 57221 | Bryant | Hamlin County | Standard |
| ZIP 57223 | Castlewood | Hamlin County | Standard |
| ZIP 57226 | Clear Lake | Deuel County | Standard |
| ZIP 57233 | Erwin | Kingsbury County | Standard |
| ZIP 57234 | Estelline | Hamlin County | Standard |
| ZIP 57235 | Florence | Codington County | Standard |
| ZIP 57238 | Goodwin | Deuel County | Standard |
| ZIP 57241 | Hayti | Hamlin County | Standard |
| ZIP 57242 | Hazel | Hamlin County | Standard |
| ZIP 57243 | Henry | Codington County | Standard |
| ZIP 57245 | Kranzburg | Codington County | PO Box |
| ZIP 57248 | Lake Norden | Hamlin County | Standard |
| ZIP 57256 | Ortley | Roberts County | Standard |
| ZIP 57263 | South Shore | Codington County | Standard |
| ZIP 57264 | Stockholm | Grant County | Standard |
| ZIP 57271 | Vienna | Clark County | Standard |
| ZIP 57272 | Wallace | Codington County | Standard |