Polk, Iowa Census 2020 Population By Race and Ethnicity

Updated on February 22, 2026.

According to the data from the US 2020 decennial Census, in April 2020, the 492.40K population of Polk, IA residents comprised of 48.06K residents who identified as Hispanic or Latino (9.76%), and 444.35K residents who identified as Non-Hispanic (90.24%).

Race: The White Alone population was the largest racial group in Polk, IA, with a population of 373.90K (75.94%). The Two Or More Races population was the second largest racial group in Polk, IA, with a population of 36.69K (7.45%). The Black or African American Alone population was the third largest racial group in Polk, IA, with a population of 35.62K (7.24%). The smallest racial group in Polk, IA was Native Hawaiian And Pacific Islander Alone with a population of 302 (0.06%).

Ethnicity: The Non-Hispanic - White Alone population was the largest ethnic group in Polk, IA, with a population of 362.26K (73.57%). The Non-Hispanic - Black Alone population was the second largest ethnic group in Polk, IA, with a population of 34.99K (7.11%). The Non-Hispanic - Asian Alone population was the third largest ethnic group in Polk, IA, with a population of 24.31K (4.94%). The smallest ethnic group in Polk, IA was Hispanic - Native Hawaiian & Pac. Islander with a population of 22 (0.00%).

The charts and tables below shows the population and percentage of each racial group and ethnicity group in Polk, Iowa from the 2020 decennial census.

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

Polk, IA Hispanics and Non Hispanics Population in Census 2020
Total Population:
Polk, IA Racial Groups in Census 2020
Total Population:
Polk, IA Ethnicity Groups in Census 2020
Total Population:
Polk, IA Population of Racial Groups in Census 2020
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Race Population % of County Population
Black or African American Alone 35623 7.24
White Alone 373903 75.94
American Indian and Alaska Native Alone 2274 0.46
Asian Alone 24510 4.98
Native Hawaiian And Pacific Islander Alone 302 0.06
Some Other Race Alone 19100 3.88
Two Or More Races 36689 7.45
Polk, IA Population of Ethnicity Groups in Census 2020
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Ethnicity Population % of County Population
Non-Hispanic - White Alone 362260 73.57
Non-Hispanic - Black Alone 34990 7.11
Non-Hispanic - Asian Alone 24313 4.94
Non-Hispanic - Two or More Races 19709 4.00
Hispanic - Some Other Race Alone 17387 3.53
Hispanic - Two or More Races 16980 3.45
Hispanic - White Alone 11643 2.37
Non-Hispanic - Some Other Race Alone 1713 0.35
Hispanic - American Indian & Alaska Native 1193 0.24
Non-Hispanic - American Indian & Alaska Native 1081 0.22
Hispanic - Black Alone 633 0.13
Non-Hispanic - Native Hawaiian & Pac. Islander 280 0.06
Hispanic - Asian Alone 197 0.04
Hispanic - Native Hawaiian & Pac. Islander 22 0.00