Greenhorn ZIP codes, Oregon
No ZIP code is named for Greenhorn, OR; addresses there use a neighbouring town's name. 2 ZIP codes cover it: 97877 and 97817. Its area codes are 541 and 458.
- USPS city name
- 0 ZIP codes
- Overlapping the city
- 2 more
- Population
- 0
- County
- Grant County
- State
- Oregon
NANPA lists no telephone rate centre for Greenhorn itself, so these are the area codes of the nearest one, Sumpter (0.0 miles). A town on an area-code boundary can differ from its neighbour.
ZIP codes covering Greenhorn
These ZIP codes cover part of Greenhorn but are addressed as somewhere else.
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
97817 | Bates , OR | Standard | 13 | — | — |
97877 | Sumpter , OR | Standard | 314 | $25,662 | — |
Map of Greenhorn ZIP codes
The ZIP codes of Greenhorn, OR, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
More nearby: every ZIP code in Grant County · Oregon ZIP codes
Cite this page
zipcodes.pro. “Greenhorn, OR ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/or/greenhorn
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