Asotin County Demographics

A map of Asotin County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	19,563	19,473	87.1%	87.4%
Multiracial	1,041	1,194	4.6%	5.4%
Hispanic	1,028	915	4.6%	4.1%
Native American/Other	383	384	1.7%	1.7%
Asian	256	206	1.1%	0.9%
Black	196	113	0.9%	0.5%

Asotin County, Washington has an estimated population of 22,467, a less than 1% change from the 22,285 recorded in the 2020 Census. The population is 87.1% White, 4.6% Hispanic, 4.6% Multiracial, 1.7% Native American/Other, 1.1% Asian, and 0.9% Black. This demographic dot map shows the population of Asotin County, with one dot drawn for each person counted by the Census, color-coded by race.

Asotin has become slightly more racially diverse since the 2020 Census. It is considerably less diverse than Washington overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Asotin County, that probability was 23.2% in 2020 and 23.7% in the most recent ACS estimates.

Asotin County is ranked the 30th most populous county in Washington, out of 39 counties. Asotin County was ranked the 30th most populous county in the 2020 Census.

Asotin County's White Population

19,563 residents of Asotin County, or 87.1% of the population, identify as White. The share of White residents in Asotin County is significantly higher than in Washington overall, where 63.1% of the population is White. Asotin County ranks 3rd statewide in terms of White residents as a share of the population, out of 39 counties.

Since the 2020 Census, Asotin County's White population has remained roughly the same. White residents' share of Asotin County's population has remained roughly unchanged at 87.1%.

Asotin County is more White than neighboring Garfield County (86.4% White), Nez Perce County (85.5% White), Columbia County (81.2% White), and Lewis County (81.7% White). Asotin County is less White than neighboring Wallowa County (89.2% White).

Asotin County's Black Population

196 residents of Asotin County, or 0.9% of the population, identify as Black. The share of Black residents in Asotin County is slightly lower than in Washington overall, where 3.8% of the population is Black. Asotin County ranks 25th statewide in terms of Black residents as a share of the population, out of 39 counties.

Since the 2020 Census, Asotin County's Black population has grown by an estimated 73.5%. Black residents' share of Asotin County's population has remained roughly unchanged at 0.9%.

Asotin County is more Black than neighboring Garfield County (0.8% Black), Nez Perce County (0.2% Black), and Columbia County (0.5% Black). Asotin County is less Black than neighboring Wallowa County (1.3% Black), and Lewis County (1.1% Black).

Asotin County's Asian Population

256 residents of Asotin County, or 1.1% of the population, identify as Asian. The share of Asian residents in Asotin County is lower than in Washington overall, where 9.7% of the population is Asian. Asotin County ranks 30th statewide in terms of Asian residents as a share of the population, out of 39 counties.

Since the 2020 Census, Asotin County's Asian population has grown by an estimated 24.3%. Asian residents' share of Asotin County's population has remained roughly unchanged at 1.1%.

Asotin County is more Asian than neighboring Nez Perce County (0.9% Asian), Wallowa County (0.3% Asian), and Lewis County (1% Asian). Asotin County is less Asian than neighboring Garfield County (2.1% Asian), and Columbia County (1.9% Asian).

Asotin County's Hispanic Population

1,028 residents of Asotin County, or 4.6% of the population, identify as Hispanic. The share of Hispanic residents in Asotin County is lower than in Washington overall, where 14.4% of the population is Hispanic. Asotin County ranks 34th statewide in terms of Hispanic residents as a share of the population, out of 39 counties.

Since the 2020 Census, Asotin County's Hispanic population has grown by an estimated 12.3%. Hispanic residents' share of Asotin County's population has increased from 4.1% to 4.6%.

Asotin County is more Hispanic than neighboring Nez Perce County (4.4% Hispanic), Wallowa County (4.2% Hispanic), and Lewis County (4.3% Hispanic). Asotin County is less Hispanic than neighboring Garfield County (5% Hispanic), and Columbia County (8.3% Hispanic).

Asotin County's Native American/Other Population

383 residents of Asotin County, or 1.7% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Asotin County is comparable to the share in Washington overall, where 2.1% of the population is Native American/Other. Asotin County ranks 27th statewide in terms of Native American/Other residents as a share of the population, out of 39 counties.

Since the 2020 Census, Asotin County's Native American/Other population has remained roughly the same. Native American/Other residents' share of Asotin County's population has remained roughly unchanged at 1.7%.

Asotin County is more Native American/Other than neighboring Garfield County (0% Native American/Other), Wallowa County (1% Native American/Other), and Columbia County (0.5% Native American/Other). Asotin County is less Native American/Other than neighboring Nez Perce County (4.9% Native American/Other), and Lewis County (2.2% Native American/Other).

Asotin County's Multiracial Population

1,041 residents of Asotin County, or 4.6% of the population, identify as Multiracial. The share of Multiracial residents in Asotin County is slightly lower than in Washington overall, where 6.8% of the population is Multiracial. Asotin County ranks 26th statewide in terms of Multiracial residents as a share of the population, out of 39 counties.

Since the 2020 Census, Asotin County's Multiracial population has declined by an estimated 12.8%. Multiracial residents' share of Asotin County's population has decreased from 5.4% to 4.6%.

Asotin County is more Multiracial than neighboring Nez Perce County (4.2% Multiracial), and Wallowa County (4% Multiracial). Asotin County is less Multiracial than neighboring Garfield County (5.7% Multiracial), Columbia County (7.5% Multiracial), and Lewis County (9.7% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.