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

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2010, the 131,344 population of Johnson County, Iowa comprised of 6,311 people who identified as Hispanic (4.81%), and 125,033 people who identified as Non-Hispanic (95.2%).

Race: The White Alone population was the largest racial group in Johnson County, Iowa with a population of 114,635 (87.28%); Asian Alone population was the second largest racial group with a population of 6,998 (5.33%); and Black or African American Alone was the third largest racial group with a population of 6,556 (4.99%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Johnson County, Iowa in 2010, with a population of 109,107 (83.07%); the second largest ethnic group was Asian Alone - Non Hispanic with a population of 6,899 (5.25%); and the third largest ethnic group was Black or African American Alone - Non Hispanic with a population of 6,293 (4.79%).

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

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

See this for other years:
Hispanics and Non Hispanics in Johnson County, IA in 2010
Total Population:
Race in Johnson County, IA in 2010
Total Population:
Ethnicity in Johnson County, IA in 2010
Total Population:
Population By Race in Johnson , IA in 2010
Race Population Percentage
Black or African American Alone 6,556 4.99%
White Alone 114,635 87.28%
American Indian and Alaska Native Alone 382 0.29%
Asian Alone 6,998 5.33%
Native Hawaiian And Pacific Islander Alone 71 0.05%
Two Or More Races 2,702 2.06%
Population By Ethnicity in Johnson , IA in 2010
Ethnicity Population Percentage
Black or African American Alone - Hispanic 263 0.2%
White Alone - Hispanic 5,528 4.21%
American Indian and Alaska Native Alone - Hispanic 135 0.1%
Asian Alone - Hispanic 99 0.08%
Native Hawaiian And Pacific Islander Alone - Hispanic 18 0.01%
Two Or More Races - Hispanic 268 0.2%
Black or African American Alone - Non Hispanic 6,293 4.79%
White Alone - Non Hispanic 109,107 83.07%
American Indian and Alaska Native Alone - Non Hispanic 247 0.19%
Asian Alone - Non Hispanic 6,899 5.25%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 53 0.04%
Two Or More Races - Non Hispanic 2,434 1.85%