| County : | Grant County |
| State : | Oregon (OR) |
| Land Area : | 4,528.52 sq mi |
| Water Area : | 0.73 sq mi |
| Latitude : | 44.4963261 |
| Longitude : | -119.0140572 |
| Population (2010): | 7,445 |
| Population Estimate (2012) : | 7,366 |
| Population Density : | 1.64/sq mi |
| Housing Units (2012) : | 4,344 |
| Median Household Income (2012) : | $34,337 (Oregon : $50,036, USA : $53,046) |
| Median Family Income (2012) : | $42,366 (Oregon : $61,438, USA : $64,585) |
| Median House Price (2012) : | $133,500 (Oregon : $246,100, USA : $181,400) |
Grant County Cities / Towns
| Canyon City Town (703) | Dayville Town (149) | Granite City (38) |
| John Day City (1,744) | Long Creek City (197) | Monument City (128) |
| Mount Vernon City (527) | Prairie City (909) | Seneca City (199) |
Grant County Zip Codes
| 97817 (38) | 97820 (1,095) | 97825 (244) |
| 97845 (2,652) | 97848 (195) | 97856 (366) |
| 97864 (262) | 97865 (1,160) | 97869 (1,135) |
| 97873 (228) | 97877 (283) | 97880 (272) |