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COUNTY

Adams County

Washington · 21,488 residents (2025 est.) · 1,924.989 sq mi
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Notable rankings
#39Youngest by median ageof 3,14429.3#68Most foreign-born residentsof 3,14424.5%
The short version

Adams County has lower-than-average household income, with a median household income of $66,136. Population has grown 27% since 2000. 16% of adults hold a bachelor's degree or higher, below the national rate of 36%. Median home value has roughly tripled since 2000, reaching $273,300. At a median age of 29.3, residents skew younger than the country as a whole. Households here earn about 33% less than the Washington median.

At a glance
Lower income
below the US median
US median: $82,259
Younger
median age 29.3
US median: 38.9
Less educated
16% hold a bachelor's degree
US average: 36%
Less affordable
home values up 89%, inflation adjusted
US median home: $376,019
Section 01

Population & growth

Total population
20,800
+27%since 2000
from 16,428 in 2000
1990 – 2025
Population density
11 / sq mi
+22%since 2009
from 9 / sq mi in 2009
US average: 281
Median age
29.3
−1%since 2000
from 29.6 in 2000
US average: 38.9

PEP 2025 EST:21,488 residents (Census Bureau Vintage 2025, released March 2026)

Population, 1990 – 2024
13K15K17K19K22K1990201020202024Adams County
202421K
1990201020202024
Age distribution, 2024
Under 58.6%(1,787)
US avg: 5.6%
5 to 99%(1,865)
US avg: 6%
10 to 1411.2%(2,332)
US avg: 6.4%
15 to 199.6%(2,007)
US avg: 6.6%
20 to 246.9%(1,440)
US avg: 6.5%
25 to 3411.9%(2,479)
US avg: 13.7%
35 to 4411.5%(2,395)
US avg: 13.2%
45 to 549.8%(2,047)
US avg: 12.2%
55 to 649.2%(1,919)
US avg: 12.7%
65 to 747.7%(1,601)
US avg: 10.2%
75 to 843.1%(635)
US avg: 5.1%
85 and over1.4%(293)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$66,136
+7%inflation adjusted, since 2000
from $33,888 in 2000
US average: $82,259
1990 – 2024
Per capita income
$28,514
+111%since 2000
from $13,534 in 2000
US average: $44,673
Households earning $100K+
44.1%
+24.8 ptssince 2009
from 19.3% in 2009
US average: 53.3%
Poverty rate
19.5%
+1.4 ptssince 2000
from 18.2% in 2000
US average: 12.5%
Income inequality (Gini)
0.479
+16%since 2010
from 0.411 in 2010
US average: 0.476
Workforce by industry, 2024
Agriculture, forestry, fishing30.1%
US avg: 1.6%
Construction30.1%
US avg: 1.2%
Retail trade8.8%
US avg: 9.9%
Wholesale trade6.6%
US avg: 6.9%
Information5.8%
US avg: 10.8%
Finance & insurance5.1%
US avg: 5.9%
Professional, scientific, technical4.2%
US avg: 5.1%
Transportation & warehousing2.1%
US avg: 2.2%
Other services1.6%
US avg: 6.7%
Public administration1%
US avg: 4.8%
Education & health services0.9%
US avg: 0.9%
Arts, entertainment, food0.3%
US avg: 1.9%
Manufacturing0%
US avg: 0.4%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

Median home value
$273,300
+89%inflation adjusted, since 2000
from $79,500 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$877
+12%inflation adjusted, since 2000
from $430 in 2000
US average: $1,442
Owner-occupied
69.3%
+0.9 ptssince 2000
from 68.4% in 2000
30.7% rent
Vacancy rate
9.2%
−0.5 ptssince 2009
from 9.7% in 2009
US average: 10.0%
Owner cost-burdened
21.7%
−6.0 ptssince 2009
from 27.7% in 2009
US average: 22.9%
Renter cost-burdened
41.1%
+0.7 ptssince 2009
from 40.4% in 2009
US average: 47.4%
Afford Score
4.1
+36%since 2009
from 3.0 in 2009
2009 – 2024
Our index: median home value divided by median household income. Lower is more affordable.
Gentrification Score
57
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
RELATED:See current rent listings in Adams County on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic50.9%(8,366)
Black0.1%(20)
Hispanic / Latino47.1%(7,732)
Asian0.5%(75)
Other0%
2024
White, non-Hispanic31.1%(6,469)
Black0.2%(40)
Hispanic / Latino64.5%(13,423)
Asian0.6%(119)
Other3.6%(749)
Diversity Score
61
−6%since 2009
from 64 in 2009
2009 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Segregation Score
45
+5%since 2020
from 43 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
Mexican60.8%(12,637)
Guatemalan3.2%(667)
Peruvian0.2%(41)
Salvadoran0.1%(23)
Colombian0.1%(11)
Asian origin
Vietnamese0.3%(66)
Filipino0.2%(43)
Chinese0%(9)
Pacific Islander origin
Samoan0%(4)
Ancestry
German9.4%(1,961)
English6.8%(1,415)
Irish4.8%(1,006)
American1.9%(402)
Norwegian1.9%(387)
Italian1%(213)
Swedish1%(198)
Scottish0.8%(171)
French0.8%(163)
Polish0.3%(67)
Welsh0.3%(56)
Scotch-Irish0.3%(55)
+ 18 more ancestry groups with data
Dutch0.3%(53)
Finnish0.2%(44)
Danish0.2%(42)
Russian0.2%(41)
West Indian0.2%(33)
Jamaican0.2%(33)
Arab0.1%(29)
Portuguese0.1%(29)
Syrian0.1%(23)
Belgian0.1%(22)
Canadian0.1%(20)
British0.1%(14)
Romanian0.1%(12)
Czech0%(6)
Swiss0%(5)
RANKED:Largest Mexican population · Largest German population · Largest English population · Largest Irish population · Largest Central American population
Section 05

Education

Bachelor's degree or higher
15.7%
+3.5 ptssince 2000
from 12.2% in 2000
US average: 35.6%
High school or higher
65.9%
+2.6 ptssince 2000
from 63.3% in 2000
US average: 89.6%
Graduate degree
5.4%
+1.7 ptssince 2000
from 3.7% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
22.2 min
+63%since 2000
from 13.6 min in 2000
US average: 26.5
Drive alone to work
68.6%
−5.4 ptssince 2009
from 74.0% in 2009
US average: 68.9%
Carpooled to work
17.7%
+6.1 ptssince 2009
from 11.7% in 2009
US average: 8.5%
Public transit
0.5%
−0.3 ptssince 2009
from 0.8% in 2009
US average: 3.2%
Worked from home
6.0%
+0.6 ptssince 2009
from 5.5% in 2009
US average: 15.0%
Walked to work
4.4%
−0.9 ptssince 2009
from 5.3% in 2009
US average: 2.4%
Biked to work
0.4%
Unchangedsince 2009
from 0.4% in 2009
US average: 0.4%
No vehicle available
6.4%
+2.6 ptssince 2009
from 3.7% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
3.6%
−10.1 ptssince 2011
from 13.6% in 2011
US average: 5.2%
Labor force participation
60.0%
−5.2 ptssince 2011
from 65.2% in 2011
US average: 63.5%
Self-employed
16.7%
−0.9 ptssince 2009
from 17.6% in 2009
US average: 13.1%
Management & professional
25.4%
−29.7 ptssince 2009
from 55.1% in 2009
US average: 42.5%
Section 08

People & community

Male
50.9%
−0.1 ptssince 2009
from 51.0% in 2009
Female
49.1%
+0.1 ptssince 2009
from 49.0% in 2009
Foreign born
24.5%
+2.8 ptssince 2009
from 21.6% in 2009
US average: 14.1%
Veterans
3.6%
−46.9 ptssince 2009
from 50.5% in 2009
US average: 6.2%
With a disability
11.7%
+0.3 ptssince 2012
from 11.4% in 2012
US average: 13.3%
Uninsured
16.0%
−61.4 ptssince 2013
from 77.4% in 2013
US average: 8.4%
Broadband at home
90.0%
+26.9 ptssince 2017
from 63.1% in 2017
US average: 91.0%
English only at home
46.4%
+0.2 ptssince 2016
from 46.2% in 2016
US average: 77.7%
Spanish at home
51.2%
+0.2 ptssince 2016
from 51.0% in 2016
US average: 13.6%
Marital status
Men 15+
Never married39.6%(2,985)
Married53.3%(4,017)
Widowed2.1%(155)
Divorced5%(374)
Women 15+
Never married29.6%(2,157)
Married53.7%(3,912)
Widowed6.3%(461)
Divorced10.4%(755)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Drill deeper

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Head to head

Compare Adams County to nearby counties

ADAMS COUNTY VS
Franklin County
Income$86,714+31%
Home value$379,300+39%
Population102,612+378%
SEE FULL COMPARISON →
ADAMS COUNTY VS
Lincoln County
Income$71,512+8%
Home value$292,800+7%
Population11,982−44%
SEE FULL COMPARISON →
ADAMS COUNTY VS
Whitman County
Income$55,406−16%
Home value$359,600+32%
Population48,512+126%
SEE FULL COMPARISON →
ADAMS COUNTY VS
Grant County
Income$73,267+11%
Home value$299,500+10%
Population105,727+392%
SEE FULL COMPARISON →
Frequently asked

How many people live in Adams County, Washington?

Adams County, Washington has about 20,800 residents according to the 2024 American Community Survey.

What is the median household income in Adams County, Washington?

The typical household in Adams County, Washington earns about $66,136 a year. Half of households make more than that, and half make less.

Is Adams County, Washington expensive?

In Adams County, Washington, the median home is worth about $273,300, and the typical rent is about $877 a month.

How educated are people in Adams County, Washington?

About 15.7% of adults age 25 and over in Adams County, Washington hold a bachelor's degree or higher.

What is the poverty rate in Adams County, Washington?

About 19.5% of people in Adams County, Washington live below the federal poverty line.

Has Adams County, Washington grown since 1990?

Yes, Adams County, Washington has grown since 1990. The population has added about 7,197 residents, a change of about 53 percent over that period.

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Explore from here

7 census tracts
Census Tract 9505Census Tract 9504Census Tract 9503.02Census Tract 9501Census Tract 9503.03Census Tract 9502Census Tract 9503.01
5 ZIP codes
ZIP 99344ZIP 99169ZIP 99341ZIP 99371ZIP 99105
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →