Population By Race and Ethnicity in Washington, KS in 2018

Updated on June 16, 2025.

Based on the US Census Vintage data estimates, in 2018, the 5,457 population of Washington County, Kansas comprised of 200 people who identified as Hispanic (3.67%), and 5,257 people who identified as Non-Hispanic (96.34%).

Race: The White Alone population was the largest racial group in Washington County, Kansas with a population of 5,288 (96.9%); Two Or More Races population was the second largest racial group with a population of 67 (1.23%); and Asian Alone was the third largest racial group with a population of 39 (0.72%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Washington County, Kansas in 2018, with a population of 5,120 (93.82%); the second largest ethnic group was White Alone - Hispanic with a population of 168 (3.08%); and the third largest ethnic group was Two Or More Races - Non Hispanic with a population of 62 (1.14%).

The charts and tables below shows the population and percentage of each racial and ethnicity group in Washington, Kansas.

You can find similar information for other Kansas counties, and for Kansas.

See this for other years:
Hispanics and Non Hispanics in Washington, KS in 2018
Total Population:
Race in Washington, KS in 2018
Total Population:
Ethnicity in Washington, KS in 2018
Total Population:
Population By Race in Washington , KS in 2018
RacePopulationPercentage
Black or African American Alone 30 0.55%
White Alone 5,288 96.9%
American Indian and Alaska Native Alone 30 0.55%
Asian Alone 39 0.72%
Native Hawaiian And Pacific Islander Alone 3 0.06%
Two Or More Races 67 1.23%
Population By Ethnicity in Washington , KS in 2018
EthnicityPopulationPercentage
Black or African American Alone - Hispanic 1 0.02%
White Alone - Hispanic 168 3.08%
American Indian and Alaska Native Alone - Hispanic 20 0.37%
Asian Alone - Hispanic 6 0.11%
Native Hawaiian And Pacific Islander Alone - Hispanic 0 0%
Two Or More Races - Hispanic 5 0.09%
Black or African American Alone - Non Hispanic 29 0.53%
White Alone - Non Hispanic 5,120 93.82%
American Indian and Alaska Native Alone - Non Hispanic 10 0.18%
Asian Alone - Non Hispanic 33 0.61%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 3 0.06%
Two Or More Races - Non Hispanic 62 1.14%