ZIP CodesZIP codes in Grant County, Oregon
Grant County, Oregon has 10 ZIP codes in this list, from 97817 to 97873. They cover 10 places, among them Bates, Canyon City, Dayville and John Day.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 97817 | Bates | 218 | 44.714, -118.647 |
| 97820 | Canyon City | 363 | 44.391, -118.947 |
| 97825 | Dayville | 248 | 44.466, -119.531 |
| 97845 | John Day | 114 | 44.416, -118.953 |
| 97848 | Kimberly | 206 | 44.723, -119.597 |
| 97856 | Long Creek | 541 | 44.755, -119.097 |
| 97864 | Monument | 265 | 44.819, -119.419 |
| 97865 | Mount Vernon | 358 | 44.417, -119.112 |
| 97869 | Prairie City | 291 | 44.457, -118.695 |
| 97873 | Seneca | 107 | 44.135, -118.972 |
The ZIP code areas of Grant County add up to about 2,709 square miles of land (7,017 sq km) as the Census Bureau draws them. The largest is 97856 (Long Creek), with 541 square miles.
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Bates, OR 97817.
- Tap a ZIP code to open it in the look-up, with a copy button for the address line.
- A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
- "No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.