De Smet, SD ZIP code
The ZIP code for De Smet, South Dakota is 57231. It is in Kingsbury County.
- Population in these ZIPs
- 1,724
- Avg. median income
- $78,600population-weighted
- Typical home value
- $250,000population-weighted
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De Smet, SD ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 57231 | 1,724 | $78,646 | $250,000 |
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 near De Smet
Frequently asked questions
What is the ZIP code for De Smet, SD?
The ZIP code for De Smet, SD is 57231.
What county is De Smet, South Dakota in?
De Smet ZIP codes are in Kingsbury County.