Douglas County, South Dakota ZIP codes
5 ZIP codes are in Douglas County, plus 3 that cross in from neighboring counties.
- ZIP codes
- 5
- Population in these ZIPs
- 3,147
- Avg. median income
- $84,900population-weighted
- Cities & towns
- 5
Loading map…
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Douglas County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 57313 | Armour | 1,220 | $89,107 | $117,300 |
| 57328 | Corsica | 1,290 | $86,985 | $211,400 |
| 57330 | Delmont | 594 | $71,563 | $143,800 |
| 57344 | Harrison | 39 | — | $275,000 |
| 57364 | New Holland | 4 | — | — |
ZIP codes partly in Douglas County
These ZIP codes are mostly in a neighboring county but cover part of Douglas County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 57331 | Dimock | Hutchinson County | 231 | $101,406 | $292,500 |
| 57366 | Parkston | Hutchinson County | 2,598 | $78,155 | $243,800 |
| 57369 | Platte | Charles Mix County | 2,630 | $78,100 | $346,100 |
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 Douglas County
Nearby counties
Frequently asked questions
How many ZIP codes are in Douglas County, South Dakota?
5 ZIP codes are mainly in Douglas County, and 3 more ZIP codes from neighboring areas reach partly into it.
What cities are in Douglas County?
ZIP codes in Douglas County use the city names Armour, Corsica, Delmont, Harrison and New Holland.