United States › Washington › San Juan County COUNTY
San Juan County Washington · 18,577 residents (2025 est.) · 174 sq mi
Time machine
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The short version
With 18,478 people, San Juan County is a county in Washington. The median age is 57.0, about 18 years above the US median. The typical home is worth $799,200, having more than doubled since 2000. This is an unusually credentialed place: 54% of adults have a four-year degree. That puts it in the top 3% of US counties for household income. Owners hold 78% of the housing stock.
At a glance
Average income
near the US median
US median: $82,259
Older
median age 57.0
US median: 38.9
More educated
54% hold a bachelor's degree
US average: 36%
Less affordable
home values up 53%, inflation adjusted
US median home: $376,019
Section 01
Population & growth from 14,077 in 2000
18,577 in 2025 (Census Bureau estimate)
106 / sq mi
+21%since 2009
from 88 / sq mi in 2009
US average: 281
from 47.4 in 2000
US average: 38.9
Population, 1990 – 2024
9K 12K 14K 17K 19K 1990 2000 2010 2020 2024 San Juan County Age distribution, 2024
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy $84,800
+7%inflation adjusted, since 2000
from $43,491 in 2000
US average: $82,259
from $30,603 in 2000
US average: $44,673
Households earning $100K+
from 30.3% in 2009
US average: 53.3%
from 9.2% in 2000
US average: 12.5%
from 0.476 in 2010
US average: 0.476
Workforce by industry, 2024
Professional, scientific, technical 4.2%
Agriculture, forestry, fishing 3.2%
Arts, entertainment, food 2.2%
Public administration 2.1%
Education & health services 1.2%
Transportation & warehousing 1.2%
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$799,200
+53%inflation adjusted, since 2000
from $286,400 in 2000
US average: $376,019
$1,512
+37%inflation adjusted, since 2000
from $607 in 2000
US average: $1,442
from 73.5% in 2000
22.0% rent
from 34.5% in 2009
US average: 10.0%
from 2.07 people in 2009
US average: 2.54
from 36.7% in 2009
US average: 22.9%
from 41.9% in 2009
US average: 47.4%
from 9.5 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
Section 04
Race & ethnicity 2000
White, non-Hispanic 93.7%(13,187)
Hispanic / Latino 2.4%(338)
2024
White, non-Hispanic 85.2%(15,743)
Hispanic / Latino 7.6%(1,409)
from 17 in 2009
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
from 13 in 2020
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins
Detailed origins & ancestry Hispanic origin
+ 3 more hispanic origin groups with data Ancestry
+ 34 more ancestry groups with data from 40.2% in 2000
US average: 35.6%
High school or higher
from 94.4% in 2000
US average: 89.6%
from 15.2% in 2000
US average: 14.0%
Section 06
Commute & transportation from 11.3 min in 2000
US average: 26.5
from 61.7% in 2009
US average: 68.9%
from 6.4% in 2009
US average: 8.5%
from 2.1% in 2009
US average: 3.2%
from 16.1% in 2009
US average: 15.0%
from 9.3% in 2009
US average: 2.4%
from 1.4% in 2009
US average: 0.4%
from 5.3% in 2009
US average: 8.3%
Section 07
Work & employment from 3.8% in 2011
US average: 5.2%
from 60.4% in 2011
US average: 63.5%
Women 20-64 in the labor force
from 68.6% in 2020
US average: 74.6%
from 15.2% in 2009
US average: 13.1%
from 35.9% in 2009
US average: 42.5%
Section 08
People & community from 6.2% in 2009
US average: 14.1%
from 14.9% in 2009
US average: 6.2%
from 10.9% in 2012
US average: 13.3%
from 15.0% in 2013
US average: 8.4%
from 83.5% in 2017
US average: 91.0%
Computer in household
from 95.1% in 2020
US average: 95.5%
from 85.8% in 2020
US average: 87.7%
from 92.4% in 2016
US average: 77.7%
from 5.2% in 2016
US average: 13.6%
Marital status
Women 15+
Never married 19.7%(1,661)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 15.0% in 2013
US average: 8.4%
from 37.3% in 2020
US average: 54.8%
Direct-purchase
from 36.3% in 2020
US average: 13.8%
from 33.2% in 2020
US average: 18.4%
from 14.4% in 2020
US average: 20.9%
VA health care
from 1.7% in 2020
US average: 2.2%
Any private
from 71.3% in 2020
US average: 67.1%
Any public
from 45.9% in 2020
US average: 36.7%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Veterans by period of service, 2024
Gulf War (2001 or later) 11.5%(139)
Gulf War (1990s) 12.5%(151)
Share of the 1,211 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
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Drill deeper
Places similar to San Juan County Head to head
Compare San Juan County to nearby counties SAN JUAN COUNTY VS
Island County
Income $90,551 +7%
Home value $593,300 −26%
Population 85,657 +361%
SEE FULL COMPARISON →
SAN JUAN COUNTY VS
Clallam County
Income $70,370 −17%
Home value $421,800 −47%
Population 78,202 +321%
SEE FULL COMPARISON →
SAN JUAN COUNTY VS
Jefferson County
Income $74,048 −13%
Home value $535,000 −33%
Population 33,970 +83%
SEE FULL COMPARISON →
SAN JUAN COUNTY VS
Skagit County
Income $89,263 +5%
Home value $545,100 −32%
Population 132,975 +616%
SEE FULL COMPARISON →
Frequently asked
How many people live in San Juan County, Washington? San Juan County, Washington has about 18,478 residents according to the 2024 American Community Survey.
What is the median household income in San Juan County, Washington? The typical household in San Juan County, Washington earns about $84,800 a year. Half of households make more than that, and half make less.
Is San Juan County, Washington expensive? In San Juan County, Washington, the median home is worth about $799,200, and the typical rent is about $1,512 a month.
How educated are people in San Juan County, Washington? About 53.9% of adults age 25 and over in San Juan County, Washington hold a bachelor's degree or higher.
What is the poverty rate in San Juan County, Washington? About 11.3% of people in San Juan County, Washington live below the federal poverty line.
Has San Juan County, Washington grown since 1990? Yes, San Juan County, Washington has grown since 1990. The population has added about 8,443 residents, a change of about 84 percent over that period.
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