Population

In 2010, there were 6,894 residents on San Juan Island. In the Town of Friday Harbor there was 2,162 residents. The median age for males was 38.7 years and female was 44 with a combined average of 41.3 years. The County's 2010 population is estimated at 15,844.
San Juan Island
Overview Demographic Economic Housing Social 

General Characteristics Number Percent U.S.
Total population 6,894 100.0 100%
Male 3,345 48.5 49.1%
Female 3,549 51.5 50.9%
Median Age 46.5 (X) 35.3
Under 5 years 264 3.8 6.8%
18 years and over 5,509 79.9 74.3%
65 years and over 1,305 18.9 12.4%
One race 6,794 98.5 97.6%
White 6,557 95.1 75.1%
Black or African American 22 0.3 12.3%
American Indian and Alaska Native 61 0.9 0.9%
Asian 61 0.9 3.6%
Native Hawaiian and Other Pacific Islander 5 0.1 0.1%
Some other race 88 1.3 5.5%
Two or more races 100 1.5 2.4%
Hispanic or Latino (of any race) 192 2.8 12.5%
Average Household Size 2.22 (X) 2.59
Average Family Size 2.70 (X) 3.14
Total housing units 4,099 100.0 100.0%
Occupied housing units 3,059 74.6 91.0%
Owner-occupied housing units 2,248 73.5 66.2%
Renter-occupied housing units 811 26.5 33.8%
Vacant housing units 1,040 25.4 9.0%

Social Characteristics Number Percent U.S.
Population 25 years and over 5,113
High school graduate or higher 4,751 92.9 80.4%
Bachelor's degree or higher 1,851 36.2 24.4%
Civilian veterans 1,051 19.1 12.7%
Disability status (population 21 to 64 years) 672 17.0 19.2%
Foreign born 370 5.4 11.1%
Now married (population 15 years and over) 3,374 58.6 54.4%
Speak a language other than English at home (5 years and over) 322 4.9 17.9%

Economic Characteristics Number Percent U.S.
In labor force (population 16 years and over) 3,280 58.3 63.9%
Mean travel time to work in minutes (population 16 years and older) 13.4 (X) 25.5
Median household income (dollars) 45,000 (X) 41,994
Median family income (dollars) 49,394 (X) 50,046
Per capita income (dollars) 30,824 (X) 21,587
Families below poverty level 117 6.1 9.2%
Individuals below poverty level 493 7.2 12.4%

Housing Characteristics Number Percent U.S.
Single-family owner-occupied homes 1,523  
Median value (dollars) 288,300 (X) 119,600

Information provided by BrainyZip

​Land Area

San Juan County has a land surface of about 174.9 square miles of shoreline. Its land area is the smallest of the state's 39 counties.
  • San Juan (55.3 square miles)
  • Many of the smaller islands are uninhabitable or in public ownership. Fewer than 50 of the 172-island archipelago are potentially available for private development.

Other Sources of Information