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COUNTY

San Juan County

Washington · 18,577 residents (2025 est.) · 173.914 sq mi
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Notable rankings
#31Most expensive homesof 3,139$799,200#33Oldest by median ageof 3,14457.0#62Most educatedof 3,14453.9%#75Most work-from-homeof 3,14422.7%
The short version

San Juan County has roughly average household income, with a median household income of $84,800. Population has grown 31% since 2000. 54% of adults hold a bachelor's degree or higher, well above the national rate of 36%. Median home value has more than doubled since 2000, reaching $799,200. With a median age of 57.0, the population is older than the US median of 38.9. It ranks in the top 5% of US counties for household income.

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

Total population
18,478
+31%since 2000
from 14,077 in 2000
1990 – 2025
Population density
106 / sq mi
+21%since 2009
from 88 / sq mi in 2009
US average: 281
Median age
57.0
+20%since 2000
from 47.4 in 2000
US average: 38.9

PEP 2025 EST:18,577 residents (Census Bureau Vintage 2025, released March 2026)

Population, 1990 – 2024
9K12K14K17K19K1990201020202024San Juan County
202418K
1990201020202024
Age distribution, 2024
Under 52.5%(466)
US avg: 5.6%
5 to 93.1%(566)
US avg: 6%
10 to 144.6%(848)
US avg: 6.4%
15 to 193.8%(693)
US avg: 6.6%
20 to 243.1%(565)
US avg: 6.5%
25 to 348.3%(1,532)
US avg: 13.7%
35 to 4410.8%(1,994)
US avg: 13.2%
45 to 5411.5%(2,133)
US avg: 12.2%
55 to 6416.4%(3,025)
US avg: 12.7%
65 to 7421.4%(3,960)
US avg: 10.2%
75 to 8411.8%(2,176)
US avg: 5.1%
85 and over2.8%(520)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$84,800
+7%inflation adjusted, since 2000
from $43,491 in 2000
US average: $82,259
1990 – 2024
Per capita income
$63,950
+109%since 2000
from $30,603 in 2000
US average: $44,673
Households earning $100K+
55.0%
+24.7 ptssince 2009
from 30.3% in 2009
US average: 53.3%
Poverty rate
11.3%
+2.1 ptssince 2000
from 9.2% in 2000
US average: 12.5%
Income inequality (Gini)
0.532
+12%since 2010
from 0.476 in 2010
US average: 0.476
Workforce by industry, 2024
Wholesale trade13.5%
US avg: 6.9%
Information10.3%
US avg: 10.8%
Retail trade5.6%
US avg: 9.9%
Finance & insurance5.4%
US avg: 5.9%
Other services5.2%
US avg: 6.7%
Professional, scientific, technical4.2%
US avg: 5.1%
Agriculture, forestry, fishing3.2%
US avg: 1.6%
Construction3.1%
US avg: 1.2%
Arts, entertainment, food2.2%
US avg: 1.9%
Public administration2.1%
US avg: 4.8%
Education & health services1.2%
US avg: 0.9%
Transportation & warehousing1.2%
US avg: 2.2%
Manufacturing0.2%
US avg: 0.4%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

Median home value
$799,200
+53%inflation adjusted, since 2000
from $286,400 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$1,512
+37%inflation adjusted, since 2000
from $607 in 2000
US average: $1,442
Owner-occupied
78.0%
+4.5 ptssince 2000
from 73.5% in 2000
22.0% rent
Vacancy rate
35.6%
+1.1 ptssince 2009
from 34.5% in 2009
US average: 10.0%
Owner cost-burdened
30.7%
−6.0 ptssince 2009
from 36.7% in 2009
US average: 22.9%
Renter cost-burdened
36.6%
−5.2 ptssince 2009
from 41.9% in 2009
US average: 47.4%
Afford Score
9.4
−1%since 2009
from 9.5 in 2009
2009 – 2024
Our index: median home value divided by median household income. Lower is more affordable.
Gentrification Score
68
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
RELATED:See current rent listings in San Juan County on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic93.7%(13,187)
Black0.2%(34)
Hispanic / Latino2.4%(338)
Asian0.9%(125)
Other0%
2024
White, non-Hispanic85.2%(15,743)
Black0.2%(45)
Hispanic / Latino7.6%(1,409)
Asian1.3%(248)
Other5.6%(1,033)
Diversity Score
33
+96%since 2009
from 17 in 2009
2009 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Segregation Score
16
+27%since 2020
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
Mexican5%(931)
Cuban0.2%(39)
Colombian0.2%(31)
Puerto Rican0.1%(22)
Dominican0.1%(20)
Peruvian0.1%(13)
Spaniard0.1%(13)
Guatemalan0.1%(10)
Chilean0.1%(10)
+ 3 more hispanic origin groups with data
Asian origin
Chinese0.5%(86)
Korean0.3%(53)
Filipino0.2%(36)
Japanese0.1%(19)
Taiwanese0.1%(14)
Indonesian0.1%(10)
Thai0%(8)
Pacific Islander origin
Samoan0.1%(18)
Ancestry
English19.4%(3,576)
German17.3%(3,200)
Irish13.3%(2,463)
Scottish5.8%(1,073)
Norwegian5.1%(947)
Swedish3.7%(690)
Italian3.6%(663)
French2.9%(534)
American2.6%(487)
Dutch2.1%(383)
Polish1.9%(347)
Scotch-Irish1.8%(336)
+ 34 more ancestry groups with data
Welsh1.8%(336)
British1.4%(257)
Danish1%(184)
Swiss0.8%(144)
Russian0.8%(140)
Finnish0.6%(110)
Lithuanian0.6%(107)
Ukrainian0.6%(105)
Czech0.4%(81)
Portuguese0.4%(78)
Hungarian0.4%(71)
Canadian0.4%(67)
Arab0.3%(63)
Croatian0.3%(60)
Serbian0.3%(60)
Lebanese0.3%(57)
Greek0.3%(56)
Australian0.2%(40)
Slovak0.1%(23)
Latvian0.1%(22)
Austrian0.1%(21)
Belgian0.1%(16)
Slovene0.1%(10)
Iranian0%(7)
Iraqi0%(3)
Syrian0%(3)
Kenyan0%(3)
Israeli0%(2)
Turkish0%(2)
RANKED:Largest English population · Largest German population · Largest Irish population · Largest Scottish population · Largest Norwegian population
Section 05

Education

Bachelor's degree or higher
53.9%
+13.7 ptssince 2000
from 40.2% in 2000
US average: 35.6%
High school or higher
95.9%
+1.5 ptssince 2000
from 94.4% in 2000
US average: 89.6%
Graduate degree
23.4%
+8.2 ptssince 2000
from 15.2% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
15.8 min
+39%since 2000
from 11.3 min in 2000
US average: 26.5
Drive alone to work
60.2%
−1.5 ptssince 2009
from 61.7% in 2009
US average: 68.9%
Carpooled to work
7.6%
+1.1 ptssince 2009
from 6.4% in 2009
US average: 8.5%
Public transit
0.9%
−1.2 ptssince 2009
from 2.1% in 2009
US average: 3.2%
Worked from home
22.7%
+6.6 ptssince 2009
from 16.1% in 2009
US average: 15.0%
Walked to work
5.8%
−3.6 ptssince 2009
from 9.3% in 2009
US average: 2.4%
Biked to work
0.8%
−0.7 ptssince 2009
from 1.4% in 2009
US average: 0.4%
No vehicle available
3.6%
−1.7 ptssince 2009
from 5.3% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
3.7%
−0.1 ptssince 2011
from 3.8% in 2011
US average: 5.2%
Labor force participation
52.8%
−7.6 ptssince 2011
from 60.4% in 2011
US average: 63.5%
Self-employed
14.6%
−0.6 ptssince 2009
from 15.2% in 2009
US average: 13.1%
Management & professional
43.3%
−22.0 ptssince 2009
from 65.4% in 2009
US average: 42.5%
Section 08

People & community

Male
49.4%
+0.3 ptssince 2009
from 49.2% in 2009
Female
50.6%
−0.3 ptssince 2009
from 50.8% in 2009
Foreign born
7.0%
+0.8 ptssince 2009
from 6.2% in 2009
US average: 14.1%
Veterans
7.5%
−40.8 ptssince 2009
from 48.3% in 2009
US average: 6.2%
With a disability
12.8%
+1.9 ptssince 2012
from 10.9% in 2012
US average: 13.3%
Uninsured
6.0%
−79.0 ptssince 2013
from 85.0% in 2013
US average: 8.4%
Broadband at home
93.8%
+10.3 ptssince 2017
from 83.5% in 2017
US average: 91.0%
English only at home
93.2%
+0.9 ptssince 2016
from 92.4% in 2016
US average: 77.7%
Spanish at home
3.5%
−1.7 ptssince 2016
from 5.2% in 2016
US average: 13.6%
Marital status
Men 15+
Never married23%(1,878)
Married61.3%(4,996)
Widowed3.3%(271)
Divorced12.3%(1,003)
Women 15+
Never married19.7%(1,661)
Married57.7%(4,874)
Widowed7.5%(635)
Divorced15.1%(1,280)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
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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%
Population85,657+361%
SEE FULL COMPARISON →
SAN JUAN COUNTY VS
Clallam County
Income$70,370−17%
Home value$421,800−47%
Population78,202+321%
SEE FULL COMPARISON →
SAN JUAN COUNTY VS
Jefferson County
Income$74,048−13%
Home value$535,000−33%
Population33,970+83%
SEE FULL COMPARISON →
SAN JUAN COUNTY VS
Skagit County
Income$89,263+5%
Home value$545,100−32%
Population132,975+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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Explore from here

9 census tracts
Census Tract 9604Census Tract 9603.01Census Tract 9601.01Census Tract 9603.02Census Tract 9605.01Census Tract 9605.02Census Tract 9601.03Census Tract 9601.02Census Tract 9901
9 ZIP codes
ZIP 98250ZIP 98245ZIP 98261ZIP 98279ZIP 98280ZIP 98243ZIP 98286ZIP 98222ZIP 98297
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →