Island County WA Information


Island County Subdivisions

Island County WA Data & Demographics (As of July 1, 2017)


Total Population 83,436
Daytime Population: Workers 31,768
Daytime Population: Residents 44,484
Total Daytime Population (TDP) 76,252
Ratio TDP/Total Population1 0.91
Population in Households 80,238
Population in Familes 64,571
Population in Group Qrtrs 3,198
Population Density2 400
Diversity Index3 41


Median Household Income $62,145
Average Household Income $78,942
Per Capita Income $32,475


Total Housing Units 42,011 (100%)
Owner Occupied HU 23,650 (56.3%)
Renter Occupied HU 10,245 (24.4%)
Vacant Housing Units 8,116 (19.3%)
Median Home Value $316,734
Average Home Value $384,300


Total Households 33,895
Average Household Size 2.37
Family Households 22,836
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. 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 0.84% 0.73%
Households 0.48% 0.71%
Families 0.42% 0.67%
Median Household Income   4.11%
Per Capita Income   3.48%


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, 2017 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 # 22 46th
Median Household Income # 8 82nd
Per Capita Income # 7 85th

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