Population By Race and Ethnicity in Marion, IA in 2021

Updated on June 16, 2025.

Based on the US Census Vintage data estimates, in 2021, the 33,441 population of Marion County, Iowa comprised of 769 people who identified as Hispanic (2.3%), and 32,672 people who identified as Non-Hispanic (97.7%).

Race: The White Alone population was the largest racial group in Marion County, Iowa with a population of 32,098 (95.98%); Asian Alone population was the second largest racial group with a population of 474 (1.42%); and Two Or More Races was the third largest racial group with a population of 473 (1.41%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Marion County, Iowa in 2021, with a population of 31,432 (93.99%); the second largest ethnic group was White Alone - Hispanic with a population of 666 (1.99%); and the third largest ethnic group was Asian Alone - Non Hispanic with a population of 469 (1.4%).

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

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

See this for other years:
Hispanics and Non Hispanics in Marion, IA in 2021
Total Population:
Race in Marion, IA in 2021
Total Population:
Ethnicity in Marion, IA in 2021
Total Population:
Population By Race in Marion , IA in 2021
Race Population Percentage
Black or African American Alone 298 0.89%
White Alone 32,098 95.98%
American Indian and Alaska Native Alone 83 0.25%
Asian Alone 474 1.42%
Native Hawaiian And Pacific Islander Alone 15 0.05%
Two Or More Races 473 1.41%
Population By Ethnicity in Marion , IA in 2021
Ethnicity Population Percentage
Black or African American Alone - Hispanic 18 0.05%
White Alone - Hispanic 666 1.99%
American Indian and Alaska Native Alone - Hispanic 35 0.11%
Asian Alone - Hispanic 5 0.02%
Native Hawaiian And Pacific Islander Alone - Hispanic 2 0.01%
Two Or More Races - Hispanic 43 0.13%
Black or African American Alone - Non Hispanic 280 0.84%
White Alone - Non Hispanic 31,432 93.99%
American Indian and Alaska Native Alone - Non Hispanic 48 0.14%
Asian Alone - Non Hispanic 469 1.4%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 13 0.04%
Two Or More Races - Non Hispanic 430 1.29%