Island County WA Information


Island County Subdivisions

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


Total Population 83,063
Population in Households 81,044
Population in Familes 65,661
Population in Group Qrtrs 2,019
Population Density1 399
Diversity Index2 41


Median Household Income $62,799
Average Household Income $80,409
Per Capita Income $33,481


Total Housing Units 42,405 (100%)
Owner Occupied HU 23,101 (54.5%)
Renter Occupied HU 11,209 (26.4%)
Vacant Housing Units 8,095 (19.1%)
Median Home Value $324,357
Average Home Value $408,787


Total Households 34,310
Average Household Size 2.36
Family Households 23,101
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 0.69% 1.03%
Households 0.57% 1.03%
Families 0.51% 0.99%
Median Household Income   2.41%
Per Capita Income   2.41%


Island County WA - Peer Comparisons by Rank and Percentile

The table below compares Island 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 # 15 64th
Population Density # 5 90th
Diversity Index # 23 44th
Median Household Income # 9 79th
Per Capita Income # 8 82nd

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