US Census Data

Adams County vs San Juan County

A side-by-side comparison of Adams County and San Juan County: population, income, housing, and more.

Adams County and San Juan County are counties in Washington. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Adams County has the higher population (20,690 vs 18,266 in San Juan County). San Juan County has the higher median household income ($83,682 vs $65,042 in Adams County). San Juan County has the higher median home value ($726,500 vs $251,300 in Adams County).

Population, income & housing

Adams CountySan Juan County
Population20,69018,266
Median age29.2 yrs56.7 yrs
Median household income$65,042$83,682
Median home value$251,300$726,500
Median gross rent$901$1,413
Housing units6,84413,951
Homeownership rate69.1%77.8%
Bachelor's degree or higher15.4%53.4%
Unemployment rate4.1%3.1%

Trends (ACS 5-year, 2019–2023)

Adams CountySan Juan County
Population19,594 → 20,690 (+5.6%)16,788 → 18,266 (+8.8%)
Median household income$48,294 → $65,042 (+34.7%)$63,622 → $83,682 (+31.5%)
Median home value$154,500 → $251,300 (+62.7%)$488,800 → $726,500 (+48.6%)
Median gross rent$822 → $901 (+9.6%)$1,000 → $1,413 (+41.3%)

Adams County

Population
19,59420,690
Median household income
$48,294$65,042
Median home value
$154,500$251,300
Median gross rent
$822$901

San Juan County

Population
16,78818,266
Median household income
$63,622$83,682
Median home value
$488,800$726,500
Median gross rent
$1,000$1,413

Age & race/ethnicity

Age distribution (share)

Adams CountySan Juan County
Under 58.7%2.9%
5 to 1726.3%9.9%
18 to 2410.2%4.6%
25 to 3412.2%8.5%
35 to 4411.6%10.6%
45 to 549.7%11.4%
55 to 649.4%17.1%
65 to 747.7%21.6%
75 and over4.1%13.4%

Race & ethnicity (share)

Adams CountySan Juan County
White (non-Hispanic)32.1%86.1%
Black or African American0.4%0.3%
American Indian & Alaska Native0.2%0.4%
Asian0.6%1.1%
Native Hawaiian & Pacific Islander0.3%0.2%
Some other race0.3%0.3%
Two or more races2.0%4.1%
Hispanic or Latino64.1%7.5%

Educational attainment (age 25+)

Share of adults 25+

Adams CountySan Juan County
No high school diploma30.1%4.5%
High school graduate29.3%16.0%
Some college or associate's25.2%26.1%
Bachelor's degree10.1%30.6%
Graduate or professional degree5.3%22.8%

Commute to work

How workers get to work (share)

Adams CountySan Juan County
Drove alone71.1%62.4%
Carpooled18.4%7.7%
Public transit0.5%0.9%
Walked3.1%5.9%
Bicycle0.1%1.1%
Worked from home4.7%20.0%
Other means2.1%2.0%

Housing

Units in structure (share)

Adams CountySan Juan County
1-unit, detached61.4%87.1%
1-unit, attached2.6%1.8%
2 to 4 units6.8%2.2%
5 to 19 units2.1%2.4%
20 or more units4.4%0.4%
Mobile home & other22.6%6.0%

Poverty & households

Adams CountySan Juan County
Poverty rate20.5%10.5%
Average household size3.232.02
Mean commute (minutes)2216
Median year structure built19761988

Full profiles

2

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Adams County vs San Juan County: Compare Population & Demographics | US Census Data