Washington County Demographics

A map of Washington County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	19,614	19,359	92.9%	92.8%
Hispanic	702	619	3.3%	3.0%
Multiracial	635	649	3.0%	3.1%
Black	56	70	0.3%	0.3%
Native American/Other	54	68	0.3%	0.3%
Asian	45	100	0.2%	0.5%

Washington County, Nebraska has an estimated population of 21,106, a slight increase from the 20,865 recorded in the 2020 Census. The population is 92.9% White, 3.3% Hispanic, 3.0% Multiracial, 0.3% Black, 0.3% Native American/Other, and 0.2% Asian. This demographic dot map shows the population of Washington County, with one dot drawn for each person counted by the Census, color-coded by race.

Washington is about as racially diverse as it was in the 2020 Census. It is considerably less diverse than Nebraska overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Washington County, that probability was 13.7% in 2020 and 13.4% in the most recent ACS estimates.

Washington County is ranked the 17th most populous county in Nebraska, out of 93 counties. Washington County was ranked the 17th most populous county in the 2020 Census.

Washington County's White Population

19,614 residents of Washington County, or 92.9% of the population, identify as White. The share of White residents in Washington County is significantly higher than in Nebraska overall, where 75.3% of the population is White. Washington County ranks 33rd statewide in terms of White residents as a share of the population, out of 93 counties.

Since the 2020 Census, Washington County's White population has grown by an estimated 1.3%. White residents' share of Washington County's population has remained roughly unchanged at 92.9%.

Washington County is more White than neighboring Douglas County (65.8% White), Burt County (90.3% White), Sarpy County (76.3% White), and Dodge County (77.5% White). Washington County is less White than neighboring Harrison County (94.4% White).

Washington County's Black Population

56 residents of Washington County, or 0.3% of the population, identify as Black. The share of Black residents in Washington County is slightly lower than in Nebraska overall, where 4.6% of the population is Black. Washington County ranks 48th statewide in terms of Black residents as a share of the population, out of 93 counties.

Since the 2020 Census, Washington County's Black population has declined by an estimated 20.0%. Black residents' share of Washington County's population has remained roughly unchanged at 0.3%.

Washington County is more Black than neighboring Burt County (0.2% Black), and Harrison County (0.1% Black). Washington County is less Black than neighboring Douglas County (10.2% Black), Sarpy County (4% Black), and Dodge County (0.5% Black).

Washington County's Asian Population

45 residents of Washington County, or 0.2% of the population, identify as Asian. The share of Asian residents in Washington County is slightly lower than in Nebraska overall, where 2.6% of the population is Asian. Washington County ranks 29th statewide in terms of Asian residents as a share of the population, out of 93 counties.

Since the 2020 Census, Washington County's Asian population has declined by an estimated 55.0%. Asian residents' share of Washington County's population has remained roughly unchanged at 0.2%.

Washington County is more Asian than neighboring Burt County (0.1% Asian). Washington County is less Asian than neighboring Douglas County (4.4% Asian), Sarpy County (2.8% Asian), Harrison County (0.3% Asian), and Dodge County (0.5% Asian).

Washington County's Hispanic Population

702 residents of Washington County, or 3.3% of the population, identify as Hispanic. The share of Hispanic residents in Washington County is lower than in Nebraska overall, where 12.7% of the population is Hispanic. Washington County ranks 62nd statewide in terms of Hispanic residents as a share of the population, out of 93 counties.

Since the 2020 Census, Washington County's Hispanic population has grown by an estimated 13.4%. Hispanic residents' share of Washington County's population has remained roughly unchanged at 3.3%.

Washington County is more Hispanic than neighboring Harrison County (2.2% Hispanic). Washington County is less Hispanic than neighboring Douglas County (14.5% Hispanic), Burt County (3.4% Hispanic), Sarpy County (11.6% Hispanic), and Dodge County (18% Hispanic).

Washington County's Native American/Other Population

54 residents of Washington County, or 0.3% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Washington County is comparable to the share in Nebraska overall, where 1% of the population is Native American/Other. Washington County ranks 75th statewide in terms of Native American/Other residents as a share of the population, out of 93 counties.

Since the 2020 Census, Washington County's Native American/Other population has declined by an estimated 20.6%. Native American/Other residents' share of Washington County's population has remained roughly unchanged at 0.3%.

Washington County is more Native American/Other than neighboring Harrison County (0.2% Native American/Other). Washington County is less Native American/Other than neighboring Douglas County (0.6% Native American/Other), Burt County (1.8% Native American/Other), Sarpy County (0.9% Native American/Other), and Dodge County (0.8% Native American/Other).

Washington County's Multiracial Population

635 residents of Washington County, or 3.0% of the population, identify as Multiracial. The share of Multiracial residents in Washington County is comparable to the share in Nebraska overall, where 3.8% of the population is Multiracial. Washington County ranks 22nd statewide in terms of Multiracial residents as a share of the population, out of 93 counties.

Since the 2020 Census, Washington County's Multiracial population has declined by an estimated 2.2%. Multiracial residents' share of Washington County's population has remained roughly unchanged at 3.0%.

Washington County is more Multiracial than neighboring Harrison County (2.7% Multiracial), and Dodge County (2.7% Multiracial). Washington County is less Multiracial than neighboring Douglas County (4.5% Multiracial), Burt County (4.1% Multiracial), and Sarpy County (4.5% 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.