Saint Onge, SD ZIP code
The ZIP code for Saint Onge (also written St. Onge), South Dakota is 57779. It is in Lawrence County.
- Population in these ZIPs
- 347
- Avg. median income
- —population-weighted
- Typical home value
- $286,400population-weighted
- Metro area
- Spearfish, SD
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Saint Onge, SD ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 57779 | 347 | — | $286,400 |
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 Onge
Frequently asked questions
What is the ZIP code for Saint Onge, SD?
The ZIP code for Saint Onge, SD is 57779.
What county is Saint Onge, South Dakota in?
Saint Onge ZIP codes are in Lawrence County.