Saint Charles, SD ZIP code
The ZIP code for Saint Charles (also written St. Charles), South Dakota is 57571. It is in Gregory County.
- Population in these ZIPs
- 22
- Avg. median income
- —population-weighted
- Typical home value
- —population-weighted
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Saint Charles, SD ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 57571 | 22 | — | — |
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 Saint Charles
Frequently asked questions
What is the ZIP code for Saint Charles, SD?
The ZIP code for Saint Charles, SD is 57571.
What county is Saint Charles, South Dakota in?
Saint Charles ZIP codes are in Gregory County.