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 distinguished by its share of foreign-born residents, 73.5% of the population. Asotin County is a county in Washington with a population of 22,424. It ranks #30 among counties in Washington by population.
Median household income is $69,107, below the US median of $78,538. About 9.0% of residents live below the federal poverty level, below the national 12.4%. A typical home is worth $286,200, with typical rent around $994.
Roughly 24.3% of adults have a bachelor’s, below the national 35.0%. Remote work is on the higher side at 11.4%, below the national 14.0%, and the average commute runs about 15 minutes each way.
The large foreign-born share is a defining thread in Asotin County, shaping language, household composition, and the labor force behind the economic figures above.
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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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.