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> Washington > Key Center
| City : | Key Center |
| County : | Pierce County |
| State : | Washington (WA) |
| Land Area : | 14.58 sq mi |
| Water Area : | 0.11 sq mi |
| Latitude : | 47.3314270 |
| Longitude : | -122.7549166 |
| Population (2010): | 3,692 |
| Population Estimate (2012) : | 4,085 |
| Population Density : | 253.30/sq mi |
| Housing Units (2012) : | 1,656 |
| Median Household Income (2012) : | $65,530 (Washington : $59,374, USA : $53,046) |
| Median Family Income (2012) : | $70,523 (Washington : $71,939, USA : $64,585) |
| Median House Price (2012) : | $273,100 (Washington : $272,900, USA : $181,400) |