Mason County WA Information


Mason County Subdivisions

Mason County WA Data & Demographics (As of July 1, 2018)


Total Population 63,778
Population in Households 61,117
Population in Familes 48,389
Population in Group Qrtrs 2,661
Population Density1 67
Diversity Index2 42


Median Household Income $52,721
Average Household Income $66,310
Per Capita Income $26,729


Total Housing Units 33,968 (100%)
Owner Occupied HU 18,446 (54.3%)
Renter Occupied HU 6,544 (19.3%)
Vacant Housing Units 8,978 (26.4%)
Median Home Value $232,806
Average Home Value $271,285


Total Households 24,990
Average Household Size 2.45
Family Households 16,758
Average Family Size 3
  1. Population Density = Total Population per square mile.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 0.6% 0.82%
Households 0.58% 0.87%
Families 0.52% 0.83%
Median Household Income   2.05%
Per Capita Income   2.68%


Mason County WA - Peer Comparisons by Rank and Percentile

The table below compares Mason County to the other 39 counties and county equivalents in Washington by rank and percentile using July 1, 2018 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 20 51st
Population Density # 15 64th
Diversity Index # 21 49th
Median Household Income # 22 46th
Per Capita Income # 28 31st

Additional comparisons and rankings can be made with a VERY EASY TO USE Washington Census Data Comparison Tool.