San Juan County WA Information


San Juan County Subdivisions

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


Total Population 16,125
Population in Households 15,938
Population in Familes 11,664
Population in Group Qrtrs 187
Population Density1 93
Diversity Index2 27


Median Household Income $56,890
Average Household Income $79,351
Per Capita Income $38,574


Total Housing Units 14,296 (100%)
Owner Occupied HU 5,663 (39.6%)
Renter Occupied HU 2,122 (14.8%)
Vacant Housing Units 6,511 (45.5%)
Median Home Value $556,449
Average Home Value $646,027


Total Households 7,785
Average Household Size 2.05
Family Households 4,511
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 0.27% 0.27%
Households 0.27% 0.27%
Families 0.2% 0.23%
Median Household Income   3.0%
Per Capita Income   2.36%


San Juan County WA - Peer Comparisons by Rank and Percentile

The table below compares San Juan 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 # 32 21st
Population Density # 12 72nd
Diversity Index # 33 18th
Median Household Income # 14 67th
Per Capita Income # 2 97th

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