Adams County, Washington

Adams County, Washington, had an estimated population of 21,488 in 2025 across 4,986 km². The figures below come from the US Census Bureau's population estimates and the American Community Survey, each shown with its own vintage and its rank among Washington's counties and nationally.

Population: 21,488; 2025 estimate
Area: 4,986 km²
Density: 4; per km²
Median income: $66,136; household, ACS 2024
Median age: 29.3; years, ACS 2024

How Washington's counties spread

Amenities & Infrastructure

Indicator	Value	In Washington	In the US
Households with Broadband2024	90.0%	22 / 39	822 / 3,144
Median Gross Rent2024	$877	35 / 39	1,565 / 3,137
Median Home Value2024	$273,300	37 / 39	763 / 3,139
Owner-Occupied Homes2024	69.3%	23 / 39	2,313 / 3,144
Vacant Homes2024	9.2%	22 / 39	2,313 / 3,144

Demography

Indicator	Value	In Washington	In the US
Aged 65 and Over2024	12.2%	37 / 39	3,048 / 3,144
American Indian & Alaska Native2024	0.2%	36 / 39	1,145 / 3,144
Asian, non-Hispanic2024	0.6%	36 / 39	1,544 / 3,144
Average Household Size2024people	3.3	1 / 39	37 / 3,144
Black, non-Hispanic2024	0.2%	37 / 39	2,778 / 3,144
Foreign-Born2024	24.5%	2 / 39	68 / 3,144
Hispanic or Latino2024	64.5%	1 / 39	47 / 3,144
Median Age2024years	29.3	38 / 39	3,106 / 3,144
Sex Ratio2024per 1,000 males	964	28 / 39	2,294 / 3,144
Speak a Language Other Than English2024	53.6%	1 / 39	42 / 3,144
Under 182024	34.7%	1 / 39	13 / 3,144
Veterans2024	3.6%	39 / 39	3,034 / 3,144
White, non-Hispanic2024	31.1%	39 / 39	2,995 / 3,144

Economy

Indicator	Value	In Washington	In the US
Below Poverty Line2024	19.5%	3 / 39	513 / 3,144
Households on SNAP2024	18.9%	4 / 39	496 / 3,144
Income Inequality2024index	0.479	6 / 39	564 / 3,144
Median Household Income2024	$66,136	33 / 39	1,523 / 3,143
Per Capita Income2024	$28,514	39 / 39	2,643 / 3,144
Unemployment Rate2024	3.6%	38 / 39	2,074 / 3,144

Education

Indicator	Value	In Washington	In the US
Bachelor's Degree or Higher2024	15.7%	38 / 39	2,635 / 3,144
High School or Higher2024	65.9%	39 / 39	3,136 / 3,144

Health Coverage

Indicator	Value	In Washington	In the US
No Health Insurance2024	16.0%	1 / 39	264 / 3,144
With a Disability2024	11.7%	37 / 39	2,729 / 3,144

Population & Density

Indicator	Value	In Washington	In the US
Population2025	21,488	31 / 39	1,752 / 3,144
Population Density2025/km²	4	32 / 39	2,509 / 3,144

Work & Commute

Indicator	Value	In Washington	In the US
Commute by Public Transit2024	0.5%	28 / 39	782 / 3,144
Households with No Vehicle2024	6.4%	4 / 39	1,047 / 3,144
Mean Commute Time2024minutes	22.2	25 / 39	2,007 / 3,143
Work from Home2024	6.0%	39 / 39	2,358 / 3,144

Other counties of Washington

Compare Adams County against every other county on a map, add layers and run a scatter — open the atlas. Sources and vintages for every figure on this page are listed under datasets, or browse all 3,144 counties.