Population By Race and Ethnicity in Polk, IA in 2018

Updated on June 16, 2025.

Based on the US Census Vintage data estimates, in 2018, the 486,222 population of Polk County, Iowa comprised of 41,225 people who identified as Hispanic (8.48%), and 444,997 people who identified as Non-Hispanic (91.52%).

Race: The White Alone population was the largest racial group in Polk County, Iowa with a population of 412,859 (84.91%); Black or African American Alone population was the second largest racial group with a population of 34,838 (7.17%); and Asian Alone was the third largest racial group with a population of 24,474 (5.03%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Polk County, Iowa in 2018, with a population of 375,262 (77.18%); the second largest ethnic group was White Alone - Hispanic with a population of 37,597 (7.73%); and the third largest ethnic group was Black or African American Alone - Non Hispanic with a population of 33,786 (6.95%).

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

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

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Hispanics and Non Hispanics in Polk, IA in 2018
Total Population:
Race in Polk, IA in 2018
Total Population:
Ethnicity in Polk, IA in 2018
Total Population:
Population By Race in Polk , IA in 2018
Race Population Percentage
Black or African American Alone 34,838 7.17%
White Alone 412,859 84.91%
American Indian and Alaska Native Alone 1,759 0.36%
Asian Alone 24,474 5.03%
Native Hawaiian And Pacific Islander Alone 385 0.08%
Two Or More Races 11,907 2.45%
Population By Ethnicity in Polk , IA in 2018
Ethnicity Population Percentage
Black or African American Alone - Hispanic 1,052 0.22%
White Alone - Hispanic 37,597 7.73%
American Indian and Alaska Native Alone - Hispanic 978 0.2%
Asian Alone - Hispanic 245 0.05%
Native Hawaiian And Pacific Islander Alone - Hispanic 141 0.03%
Two Or More Races - Hispanic 1,212 0.25%
Black or African American Alone - Non Hispanic 33,786 6.95%
White Alone - Non Hispanic 375,262 77.18%
American Indian and Alaska Native Alone - Non Hispanic 781 0.16%
Asian Alone - Non Hispanic 24,229 4.98%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 244 0.05%
Two Or More Races - Non Hispanic 10,695 2.2%