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> Washington > Zip Code 99115
| Zip Code : | 99115 |
| City : | Banks Lake South, Coulee City town |
| County : | Douglas County, Grant County |
| State : | Washington (WA) |
| Land Area : | 418.63 sq mi |
| Water Area : | 3.77 sq mi |
| Latitude : | 47.6468341 |
| Longitude : | -119.4166888 |
| Population (2010): | 1,143 |
| Population Estimate (2012) : | 1,066 |
| Population Density : | 2.73/sq mi |
| Housing Units (2012) : | 882 |
| Median Household Income (2012) : | $44,000 (Washington : $59,374, USA : $53,046) |
| Median Family Income (2012) : | $57,870 (Washington : $71,939, USA : $64,585) |
| Median House Price (2012) : | $167,400 (Washington : $272,900, USA : $181,400) |