Population By Race and Ethnicity in Buchanan County, IA in 2021

Updated on August 1, 2024.

Based on the US Census Vintage data estimates, in 2021, the 20,703 population of Buchanan County, Iowa comprised of 368 people who identified as Hispanic (1.78%), and 20,335 people who identified as Non-Hispanic (98.22%).

Race: The White Alone population was the largest racial group in Buchanan County, Iowa with a population of 20,128 (97.22%); Two Or More Races population was the second largest racial group with a population of 237 (1.15%); and Black or African American Alone was the third largest racial group with a population of 153 (0.74%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Buchanan County, Iowa in 2021, with a population of 19,805 (95.66%); the second largest ethnic group was White Alone - Hispanic with a population of 323 (1.56%); and the third largest ethnic group was Two Or More Races - Non Hispanic with a population of 230 (1.11%).

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

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

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Hispanics and Non Hispanics in Buchanan County, IA in 2021
Total Population:
Race in Buchanan County, IA in 2021
Total Population:
Ethnicity in Buchanan County, IA in 2021
Total Population:
Population By Race in Buchanan , IA in 2021
Race Population Percentage
Black or African American Alone 153 0.74%
White Alone 20,128 97.22%
American Indian and Alaska Native Alone 51 0.25%
Asian Alone 128 0.62%
Native Hawaiian And Pacific Islander Alone 6 0.03%
Two Or More Races 237 1.15%
Population By Ethnicity in Buchanan , IA in 2021
Ethnicity Population Percentage
Black or African American Alone - Hispanic 17 0.08%
White Alone - Hispanic 323 1.56%
American Indian and Alaska Native Alone - Hispanic 18 0.09%
Asian Alone - Hispanic 1 0.01%
Native Hawaiian And Pacific Islander Alone - Hispanic 2 0.01%
Two Or More Races - Hispanic 7 0.03%
Black or African American Alone - Non Hispanic 136 0.66%
White Alone - Non Hispanic 19,805 95.66%
American Indian and Alaska Native Alone - Non Hispanic 33 0.16%
Asian Alone - Non Hispanic 127 0.61%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 4 0.02%
Two Or More Races - Non Hispanic 230 1.11%