Kingsbury County, South Dakota ZIP codes
7 ZIP codes are in Kingsbury County, plus 2 that cross in from neighboring counties.
- ZIP codes
- 7
- Population in these ZIPs
- 6,053
- Avg. median income
- $79,400population-weighted
- Cities & towns
- 7
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ZIP codes in Kingsbury County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 57051 | Oldham | 163 | $56,250 | $112,500 |
| 57212 | Arlington | 1,819 | $93,750 | $315,700 |
| 57214 | Badger | 162 | $65,000 | $70,000 |
| 57231 | De Smet | 1,724 | $78,646 | $250,000 |
| 57233 | Erwin | 350 | $82,917 | — |
| 57249 | Lake Preston | 1,023 | $63,182 | $193,300 |
| 57353 | Iroquois | 812 | $75,625 | $139,300 |
ZIP codes partly in Kingsbury County
These ZIP codes are mostly in a neighboring county but cover part of Kingsbury County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 57248 | Lake Norden | Hamlin County | 1,295 | $96,364 | $382,100 |
| 57323 | Carthage | Miner County | 126 | $51,250 | $70,000 |
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 Kingsbury County
Nearby counties
Frequently asked questions
How many ZIP codes are in Kingsbury County, South Dakota?
7 ZIP codes are mainly in Kingsbury County, and 2 more ZIP codes from neighboring areas reach partly into it.
What cities are in Kingsbury County?
ZIP codes in Kingsbury County use the city names Arlington, Badger, De Smet, Erwin, Iroquois, Lake Preston and Oldham.