Asotin County, Washington Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 30th-largest in Washington
The population of Asotin County, Washington is 22,424 as of the 2023 American Community Survey, making it the 30th-largest county in Washington. The median household income is $69,107, the median home value is $286,200, and the median age is 45.5.
The population of Asotin County has grown 3.7% since 2010 (21,725 → 22,523), a +0.26% annualized rate.
22,424
Population
+0.26%
Annual growth
35
People / sq mi
$69,107
Median Income
$286,200
Median Home Value
Asotin County covers 636 sq mi of land at 35.3 people per square mile.
About Asotin County, WA
Asotin County is a county in Washington with a population of 22,424. It ranks #30 among counties in Washington by population. The median age is 45.5, older than the national median. The population is 49.6% male and 50.4% female.
The median household income in Asotin County is $69,107, below the US median of $74,580. 9.0% of residents live below the federal poverty level. Home values sit at a median of $286,200, with monthly rent averaging $994. The homeownership rate of 73.6% is higher than the national rate of 64.8%.
Educational attainment in Asotin County reflects 24.3% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 11.4% of workers primarily work from home, similar to the national work-from-home rate of 14.2%. The average commute is 15.1 minutes each way.
Asotin County Population History (2010-2024)
The county of Asotin County had a population of 21,725 in 2010 and 22,523 in 2024, a 3.7% growth over 14 years. The peak was 22,699 in 2018. Average annual growth rate: 0.26%.
22,523
Population (2024)
21,725
Population (2010)
22,699
Peak (2018)
0.26%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 21,725 |
| 2011 | 21,984 |
| 2012 | 21,935 |
| 2013 | 22,167 |
| 2014 | 22,235 |
| 2015 | 22,167 |
| 2016 | 22,362 |
| 2017 | 22,612 |
| 2018 | 22,699 |
| 2019 | 22,687 |
| 2020 | 22,328 |
| 2021 | 22,476 |
| 2022 | 22,497 |
| 2023 | 22,510 |
| 2024 | 22,523 |
Race & Ethnicity
| White | 88.9% |
| Black or African American | 0.9% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 3.1% |
| Two or More Races | 0.0% |
Age & Sex
45.5
Median Age
50.4%
Female
49.6%
Male
24.6%
Age 65+
Age Distribution
Children (under 15): 15.8% · Seniors (65+): 24.6%
Income & Poverty
| Median household income | $69,107$-25,845 vs state |
| Mean household income | $90,466 |
| Per-capita income | $38,991 |
| Poverty rate | 9.0%+2.6% vs state |
| Unemployment rate | 3.2% |
| Employment-to-population | 52.6% |
Top Industries by Employment
The largest employment sector in Asotin County is professional & business services, accounting for 26.8% of workers.
How residents commute
0.4%
Drive alone
1.8%
Carpool
77.9%
Public transit
11.4%
Work from home
15.1 min
Avg commute
Housing
$286,200$-233,600 vs state
Median home value
$994
Median rent
73.6%
Homeownership rate
10,165
Total housing units
92.8%
Occupied
7.2%
Vacant
26.4%
Renter-occupied
Social & access
94.2%
With health insurance
95.1%
With broadband internet
73.5%
Foreign-born
10.9%
Veterans (18+)
20.6%
With a disability
96.7%
Speak language other than English at home
Education
92.0%
High School+
24.3%
Bachelor's+
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Part of Washington
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County rankings
Frequently Asked Questions
Asotin County, Washington has a population of 22,424 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 30th-largest county in Washington. Population density is 35 people per square mile.
The population of Asotin County has grown 3.7% since 2010 (21,725 → 22,523), a +0.26% annualized rate.
The median household income in Asotin County, Washington is $69,107, with mean (average) household income of $90,466 and per-capita income of $38,991. 9.0% of residents live below the federal poverty level.
In Asotin County, the largest racial and ethnic groups are White (88.9%), Hispanic or Latino (3.1%), Black or African American (0.9%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Asotin County, Washington is 45.5 years. Residents are 50.4% female and 49.6% male.
The median home value in Asotin County is $286,200 and median monthly rent is $994. 73.6% of occupied housing units are owner-occupied. The county has 10,165 total housing units, 7.2% of which are vacant.
The largest employment sector in Asotin County, Washington is professional, scientific, and management services, employing 26.8% of workers. The unemployment rate is 3.2%.
Seattle is among the largest cities associated with Asotin County, Washington, with a population of 741,440.
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Statewide data for Washington
Population, race, income, age, and trends across Washington
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.