Mound City, SD ZIP code
The ZIP code for Mound City, South Dakota is 57646. It is in Campbell County.
- Population in these ZIPs
- 272
- Avg. median income
- $101,400population-weighted
- Typical home value
- $113,300population-weighted
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Mound City, SD ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 57646 | 272 | $101,406 | $113,300 |
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 Mound City
Frequently asked questions
What is the ZIP code for Mound City, SD?
The ZIP code for Mound City, SD is 57646.
What county is Mound City, South Dakota in?
Mound City ZIP codes are in Campbell County.