Grant County, Oregon ZIP Codes
- ZIP records
11 - Cities represented
11 - Sum of listed ZIP population estimates
7,393
Population sum includes positive estimates in these ZIP records; it is not an official county population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | Population estimate |
|---|---|---|---|
| 1 | 97845 | John Day | 2,265 |
| 2 | 97820 | Canyon City | 1,568 |
| 3 | 97865 | Mount Vernon | 921 |
| 4 | 97869 | Prairie City | 838 |
| 5 | 97856 | Long Creek | 485 |
| 6 | 97825 | Dayville | 347 |
| 7 | 97864 | Monument | 316 |
| 8 | 97877 | Sumpter | 314 |
| 9 | 97848 | Kimberly | 217 |
| 10 | 97873 | Seneca | 109 |
Cities in Grant County
ZIP Directory
Browse all ZIP data for Oregon
Methodology: Records are grouped by the source file's listed county and state. Population sums add positive ZIP-level estimates and are not official county totals; city counts use distinct city labels in the source.