| County : | Umatilla County |
| State : | Oregon (OR) |
| Land Area : | 3,215.49 sq mi |
| Water Area : | 15.90 sq mi |
| Latitude : | 45.5911997 |
| Longitude : | -118.7338795 |
| Population (2010): | 75,889 |
| Population Estimate (2012) : | 75,846 |
| Population Density : | 23.60/sq mi |
| Housing Units (2012) : | 29,693 |
| Median Household Income (2012) : | $48,452 (Oregon : $50,036, USA : $53,046) |
| Median Family Income (2012) : | $56,800 (Oregon : $61,438, USA : $64,585) |
| Median House Price (2012) : | $143,500 (Oregon : $246,100, USA : $181,400) |
Umatilla County Cities / Towns
| Adams City (350) | Athena City (1,126) | Cayuse (68) |
| Echo City (699) | Gopher Flats (379) | Helix City (184) |
| Hermiston City (16,745) | Kirkpatrick (179) | Milton-freewater City (7,050) |
| Mission (1,037) | Pendleton City (16,612) | Pilot Rock City (1,502) |
| Riverside (199) | Stanfield City (2,043) | Tutuilla (487) |
| Ukiah City (186) | Umapine (315) | Umatilla City (6,906) |
| Weston City (667) |
Umatilla County Zip Codes
| 97801 (21,521) | 97810 (815) | 97813 (1,302) |
| 97826 (1,085) | 97835 (361) | 97838 (25,346) |
| 97859 (123) | 97862 (11,666) | 97868 (1,991) |
| 97875 (2,610) | 97880 (272) | 97882 (7,760) |
| 97886 (1,140) | 99362 (41,056) |