| City : | Mattawa Town |
| County : | Grant County |
| State : | Washington (WA) |
| | |
| Land Area : | 0.74 sq mi |
| Water Area : | 0.00 sq mi |
| Latitude : | 46.7364483 |
| Longitude : | -119.9023402 |
| | |
| Population (2010): | 4,437 |
| Population Estimate (2012) : | 4,361 |
| Population Density : | 5,961.70/sq mi |
| Housing Units (2012) : | 843 |
| Median Household Income (2012) : | $32,007 (Washington : $59,374, USA : $53,046) |
| Median Family Income (2012) : | $30,625 (Washington : $71,939, USA : $64,585) |
| Median House Price (2012) : | $89,400 (Washington : $272,900, USA : $181,400) |