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| County : | Mason County |
| State : | Washington (WA) |
| Land Area : | 959.41 sq mi |
| Water Area : | 91.60 sq mi |
| Latitude : | 47.3541257 |
| Longitude : | -123.1738498 |
| Population (2010): | 60,699 |
| Population Estimate (2012) : | 60,545 |
| Population Density : | 63.27/sq mi |
| Housing Units (2012) : | 32,518 |
| Median Household Income (2012) : | $48,878 (Washington : $59,374, USA : $53,046) |
| Median Family Income (2012) : | $57,768 (Washington : $71,939, USA : $64,585) |
| Median House Price (2012) : | $222,100 (Washington : $272,900, USA : $181,400) |
Mason County Cities / Towns
| Allyn (1,963) | Belfair (3,931) | Grapeview (954) |
| Hoodsport (376) | Shelton City (9,834) | Skokomish (617) |
| Union (631) |
Mason County Zip Codes
| 98524 (3,232) | 98528 (9,983) | 98541 (10,101) |
| 98546 (2,909) | 98548 (2,193) | 98555 (599) |
| 98557 (3,225) | 98560 (142) | 98584 (36,630) |
| 98588 (1,829) | 98592 (1,764) |