Population By Race and Ethnicity in Marion County, IA in 2020

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2020, the 33,408 population of Marion County, Iowa comprised of 720 people who identified as Hispanic (2.15%), and 32,688 people who identified as Non-Hispanic (97.85%).

Race: The White Alone population was the largest racial group in Marion County, Iowa with a population of 32,054 (95.95%); Asian Alone population was the second largest racial group with a population of 481 (1.44%); and Two Or More Races was the third largest racial group with a population of 460 (1.38%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Marion County, Iowa in 2020, with a population of 31,434 (94.09%); the second largest ethnic group was White Alone - Hispanic with a population of 620 (1.86%); and the third largest ethnic group was Asian Alone - Non Hispanic with a population of 476 (1.43%).

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 County, IA in 2020
Total Population:
Race in Marion County, IA in 2020
Total Population:
Ethnicity in Marion County, IA in 2020
Total Population:
Population By Race in Marion , IA in 2020
Race Population Percentage
Black or African American Alone 309 0.93%
White Alone 32,054 95.95%
American Indian and Alaska Native Alone 85 0.25%
Asian Alone 481 1.44%
Native Hawaiian And Pacific Islander Alone 19 0.06%
Two Or More Races 460 1.38%
Population By Ethnicity in Marion , IA in 2020
Ethnicity Population Percentage
Black or African American Alone - Hispanic 18 0.05%
White Alone - Hispanic 620 1.86%
American Indian and Alaska Native Alone - Hispanic 34 0.1%
Asian Alone - Hispanic 5 0.02%
Native Hawaiian And Pacific Islander Alone - Hispanic 2 0.01%
Two Or More Races - Hispanic 41 0.12%
Black or African American Alone - Non Hispanic 291 0.87%
White Alone - Non Hispanic 31,434 94.09%
American Indian and Alaska Native Alone - Non Hispanic 51 0.15%
Asian Alone - Non Hispanic 476 1.43%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 17 0.05%
Two Or More Races - Non Hispanic 419 1.25%