Population By Race and Ethnicity in Washington County, IA in 2010

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2010, the 21,687 population of Washington County, Iowa comprised of 1,136 people who identified as Hispanic (5.24%), and 20,551 people who identified as Non-Hispanic (94.76%).

Race: The White Alone population was the largest racial group in Washington County, Iowa with a population of 21,175 (97.64%); Two Or More Races population was the second largest racial group with a population of 208 (0.96%); and Black or African American Alone was the third largest racial group with a population of 157 (0.72%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Washington County, Iowa in 2010, with a population of 20,108 (92.72%); the second largest ethnic group was White Alone - Hispanic with a population of 1,067 (4.92%); and the third largest ethnic group was Two Or More Races - Non Hispanic with a population of 174 (0.8%).

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

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

Data Source: US Census Bureau (Vintage).

See this for other years:

Hispanics and Non Hispanics in Washington County, IA in 2010

Total Population:21,687

Non Hispanic (94.76%)

Hispanic (5.24%)

Race in Washington County, IA in 2010

Total Population:21,687

White Alone (97.64%)

Two or more races (0.96%)

Black or African American Alone (0.72%)

Asian Alone (0.35%)

American Indian and Alaska Native Alone (0.25%)

Native Hawaiian And Pacific Islander Alone (0.07%)

Ethnicity in Washington County, IA in 2010

Total Population:21,687

Non-Hispanic White Alone (92.72%)

Hispanic White Alone (4.92%)

Non-Hispanic Two or more races (0.8%)

Non-Hispanic Black or African American Alone (0.66%)

All Other Ethnicities (0.55%)

Non-Hispanic Asian Alone (0.35%)

Population By Race in Washington , IA in 2010

Race	Population	Percentage
White Alone	21,175	97.64%
Two Or More Races	208	0.96%
Black or African American Alone	157	0.72%
Asian Alone	76	0.35%
American Indian and Alaska Native Alone	55	0.25%
Native Hawaiian And Pacific Islander Alone	16	0.07%

Population By Ethnicity in Washington , IA in 2010

Ethnicity	Population	Percentage
White Alone - Non Hispanic	20,108	92.72%
White Alone - Hispanic	1,067	4.92%
Two Or More Races - Non Hispanic	174	0.8%
Black or African American Alone - Non Hispanic	144	0.66%
Asian Alone - Non Hispanic	75	0.35%
American Indian and Alaska Native Alone - Non Hispanic	37	0.17%
Two Or More Races - Hispanic	34	0.16%
American Indian and Alaska Native Alone - Hispanic	18	0.08%
Black or African American Alone - Hispanic	13	0.06%
Native Hawaiian And Pacific Islander Alone - Non Hispanic	13	0.06%
Native Hawaiian And Pacific Islander Alone - Hispanic	3	0.01%
Asian Alone - Hispanic	1	0.01%