Johnson County, Iowa Population By Ethnicity in Census 2020

Updated on April 5, 2023.

According to the data from the US 2020 decennial Census, in April 2020, among Johnson County, IA population of 152,854 people, 74.90% (114,491) identified their ethnicity as Non-Hispanic - White Alone, 8.27% (12,643) identified their ethnicity as Non-Hispanic - Black or African American Alone, and 5.60% (8,555) identified their ethnicity as Non-Hispanic - Asian Alone.

The first chart below shows the population by ethnicity and the second chart shows the percentage of the population for each ethnicity. You can also find the information in a table below.

You can see similar information for other Iowa counties and also for the state of Iowa.

Johnson County, IA Population By Ethnicity in Census 2020
Non-Hispanic - White Alone
Non-Hispanic - Black Alone
Non-Hispanic - Asian Alone
Non-Hispanic - Two or More Races
Hispanic - Some Other Race Alone
Hispanic - Two or More Races
Hispanic - White Alone
Percentage of Johnson County, IA Population By Ethnicity in Census 2020
Non-Hispanic - White Alone
Non-Hispanic - Black Alone
Non-Hispanic - Asian Alone
Non-Hispanic - Two or More Races
Hispanic - Some Other Race Alone
Hispanic - Two or More Races
Hispanic - White Alone
Johnson County, IA Population By Ethnicity in Census 2020
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Ethnicity Population % of County Population
Non-Hispanic - White Alone 114491 74.90
Non-Hispanic - Black or African American Alone 12643 8.27
Non-Hispanic - Asian Alone 8555 5.60
Non-Hispanic - Two Or More Races 6199 4.06
Hispanic - Some Other Race Alone 3670 2.40
Hispanic - Two Or More Races 3550 2.32
Hispanic - White Alone 2599 1.70
Non-Hispanic - Some Other Race Alone 534 0.35
Hispanic - Black or African American Alone 204 0.13
Non-Hispanic - American Indian and Alaska Native Alone 193 0.13
Hispanic - American Indian and Alaska Native Alone 129 0.08
Hispanic - Asian Alone 44 0.03
Non-Hispanic - Native Hawaiian And Pacific Islander Alone 41 0.03
Hispanic - Native Hawaiian And Pacific Islander Alone 2 0.00