Population By Race and Ethnicity in Johnson County, IA in 2011

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2011, the 134,125 population of Johnson County, Iowa comprised of 6,553 people who identified as Hispanic (4.89%), and 127,572 people who identified as Non-Hispanic (95.11%).

Race: The White Alone population was the largest racial group in Johnson County, Iowa with a population of 116,366 (86.76%); Asian Alone population was the second largest racial group with a population of 7,678 (5.73%); and Black or African American Alone was the third largest racial group with a population of 6,758 (5.04%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Johnson County, Iowa in 2011, with a population of 110,628 (82.48%); the second largest ethnic group was Asian Alone - Non Hispanic with a population of 7,574 (5.65%); and the third largest ethnic group was Black or African American Alone - Non Hispanic with a population of 6,496 (4.84%).

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.

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Hispanics and Non Hispanics in Johnson County, IA in 2011
Total Population:
Race in Johnson County, IA in 2011
Total Population:
Ethnicity in Johnson County, IA in 2011
Total Population:
Population By Race in Johnson , IA in 2011
Race Population Percentage
Black or African American Alone 6,758 5.04%
White Alone 116,366 86.76%
American Indian and Alaska Native Alone 394 0.29%
Asian Alone 7,678 5.73%
Native Hawaiian And Pacific Islander Alone 72 0.05%
Two Or More Races 2,857 2.13%
Population By Ethnicity in Johnson , IA in 2011
Ethnicity Population Percentage
Black or African American Alone - Hispanic 262 0.2%
White Alone - Hispanic 5,738 4.28%
American Indian and Alaska Native Alone - Hispanic 139 0.1%
Asian Alone - Hispanic 104 0.08%
Native Hawaiian And Pacific Islander Alone - Hispanic 19 0.01%
Two Or More Races - Hispanic 291 0.22%
Black or African American Alone - Non Hispanic 6,496 4.84%
White Alone - Non Hispanic 110,628 82.48%
American Indian and Alaska Native Alone - Non Hispanic 255 0.19%
Asian Alone - Non Hispanic 7,574 5.65%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 53 0.04%
Two Or More Races - Non Hispanic 2,566 1.91%