Johnson County, Iowa Diversity Indicators (2024)

Total Population

156,639

Diversity Score

42.5

Diversity Tier

Moderate

Largest Group

White (Non-Hispanic)
74.8%%

Johnson County, Iowa Racial & Ethnic Breakdown

Bar chart showing racial distribution in  for 2024
Figure 1: Percentage breakdown of the population by race and ethnicity in (2024).


Johnson County, Iowa Population by Race & Ethnicity

Race / EthnicityPopulationPercentage
White (Non-Hispanic)117,19174.8%
Black / African American11,9307.6%
Hispanic or Latino10,5546.7%
Asian8,8195.6%
Two or More Races7,1394.6%
Other Race8590.5%
Native American1160.1%
Pacific Islander310.0%


Diversity & Demographics FAQs for Johnson County, Iowa

The largest racial or ethnic group in Johnson County, Iowa is White (Non-Hispanic), which makes up 74.8% of the total population.

Since 2010, the diversity index for Johnson County, Iowa has increased significantly. The area currently has a diversity score of 42.5/100, which is considered a Moderate level of diversity.
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