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> Washington > Zip Code 99111
| Zip Code : | 99111 |
| City : | Colfax city, Steptoe |
| County : | Whitman County |
| State : | Washington (WA) |
| Land Area : | 288.51 sq mi |
| Water Area : | 2.70 sq mi |
| Latitude : | 46.8377289 |
| Longitude : | -117.4207494 |
| Population (2010): | 4,047 |
| Population Estimate (2012) : | 4,151 |
| Population Density : | 14.03/sq mi |
| Housing Units (2012) : | 1,954 |
| Median Household Income (2012) : | $47,625 (Washington : $59,374, USA : $53,046) |
| Median Family Income (2012) : | $61,776 (Washington : $71,939, USA : $64,585) |
| Median House Price (2012) : | $155,300 (Washington : $272,900, USA : $181,400) |