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| County : | Adams County |
| State : | Washington (WA) |
| Land Area : | 1,924.97 sq mi |
| Water Area : | 4.87 sq mi |
| Latitude : | 47.0048395 |
| Longitude : | -118.5333078 |
| Population (2010): | 18,728 |
| Population Estimate (2012) : | 18,575 |
| Population Density : | 9.73/sq mi |
| Housing Units (2012) : | 6,242 |
| Median Household Income (2012) : | $41,798 (Washington : $59,374, USA : $53,046) |
| Median Family Income (2012) : | $45,492 (Washington : $71,939, USA : $64,585) |
| Median House Price (2012) : | $131,600 (Washington : $272,900, USA : $181,400) |
Adams County Cities / Towns
| Hatton Town (101) | Lind Town (564) | Othello City (7,364) |
| Ritzville City (1,673) | Washtucna Town (208) |
Adams County Zip Codes
| 98857 (4,082) | 99032 (691) | 99105 (61) |
| 99159 (1,375) | 99169 (2,459) | 99326 (4,956) |
| 99333 (50) | 99341 (884) | 99344 (16,817) |
| 99371 (311) |