San Juan County WA Information


San Juan County Subdivisions

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


Total Population 16,450
Daytime Population: Workers 9,044
Daytime Population: Residents 7,300
Total Daytime Population (TDP) 16,344
Ratio TDP/Total Population1 0.99
Population in Households 16,263
Population in Familes 11,788
Population in Group Qrtrs 187
Population Density2 95
Diversity Index3 27


Median Household Income $53,502
Average Household Income $72,056
Per Capita Income $35,017


Total Housing Units 14,218 (100%)
Owner Occupied HU 5,552 (39.0%)
Renter Occupied HU 2,383 (16.8%)
Vacant Housing Units 6,283 (44.2%)
Median Home Value $536,197
Average Home Value $614,621


Total Households 7,935
Average Household Size 2.05
Family Households 4,601
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 0.58% 0.74%
Households 0.57% 0.73%
Families 0.5% 0.69%
Median Household Income   1.56%
Per Capita Income   2.1%


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, 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 # 32 21st
Population Density # 11 74th
Diversity Index # 33 18th
Median Household Income # 16 62nd
Per Capita Income # 5 90th

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