Day County, South Dakota ZIP codes
7 ZIP codes are in Day County, plus 4 that cross in from neighboring counties.
- ZIP codes
- 7
- Population in these ZIPs
- 5,426
- Avg. median income
- $66,200population-weighted
- Cities & towns
- 7
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ZIP codes in Day County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 57219 | Bristol | 552 | $51,900 | $95,700 |
| 57239 | Grenville | 358 | $106,389 | $377,300 |
| 57261 | Roslyn | 277 | $77,813 | $167,500 |
| 57273 | Waubay | 1,165 | $48,167 | $298,100 |
| 57274 | Webster | 2,621 | $68,083 | $238,200 |
| 57422 | Andover | 174 | $88,125 | — |
| 57468 | Pierpont | 279 | $76,250 | $112,500 |
ZIP codes partly in Day County
These ZIP codes are mostly in a neighboring county but cover part of Day County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 57235 | Florence | Codington County | 774 | $83,462 | $480,900 |
| 57256 | Ortley | Grant County | 238 | $66,500 | $225,000 |
| 57434 | Conde | Spink County | 506 | $73,393 | $181,500 |
| 57454 | Langford | Marshall County | 732 | $81,250 | $210,900 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Day County
Nearby counties
Frequently asked questions
How many ZIP codes are in Day County, South Dakota?
7 ZIP codes are mainly in Day County, and 4 more ZIP codes from neighboring areas reach partly into it.
What cities are in Day County?
ZIP codes in Day County use the city names Andover, Bristol, Grenville, Pierpont, Roslyn, Waubay and Webster.