Buchanan County, Iowa Census 2020 Population By Race and Ethnicity

Updated on April 9, 2023.

According to the data from the US 2020 decennial Census, in April 2020, the 20.57K population of Buchanan County, IA residents comprised of 338 residents who identified as Hispanic or Latino (1.64%), and 20.23K residents who identified as Non-Hispanic (98.36%).

Race: The White Alone population was the largest racial group in Buchanan County, IA, with a population of 19.70K (95.77%). The Two Or More Races population was the second largest racial group in Buchanan County, IA, with a population of 605 (2.94%). The Some Other Race Alone population was the third largest racial group in Buchanan County, IA, with a population of 100 (0.49%). The smallest racial group in Buchanan County, IA was Native Hawaiian And Pacific Islander Alone with a population of 12 (0.06%).

Ethnicity: The Non-Hispanic - White Alone population was the largest ethnic group in Buchanan County, IA, with a population of 19.57K (95.14%). The Non-Hispanic - Two or More Races population was the second largest ethnic group in Buchanan County, IA, with a population of 494 (2.40%). The Hispanic - White Alone population was the third largest ethnic group in Buchanan County, IA, with a population of 131 (0.64%). The smallest ethnic group in Buchanan County, IA was Hispanic - Asian Alone with a population of 0 (0.00%).

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

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

Buchanan County, IA Hispanics and Non Hispanics Population in Census 2020
Total Population:20,565
98.36%
Non Hispanic (98.36%)
Hispanic (1.64%)
Buchanan County, IA Racial Groups in Census 2020
Total Population:20,565
95.77%
White Alone (95.77%)
Two or more races (2.94%)
Some Other Race Alone (0.49%)
Black or African American Alone (0.35%)
Asian Alone (0.25%)
American Indian and Alaska Native Alone (0.14%)
Native Hawaiian And Pacific Islander Alone (0.06%)
Buchanan County, IA Ethnicity Groups in Census 2020
Total Population:20,565
95.14%
Non-Hispanic - White Alone (95.14%)
Non-Hispanic - Two or more races (2.40%)
Hispanic - White Alone (0.64%)
Hispanic - Two or more races (0.54%)
Hispanic - Some Other Race Alone (0.40%)
Non-Hispanic - Black or African American Alone (0.34%)
All Other Ethnicities (0.29%)
Non-Hispanic - Asian Alone (0.25%)
Buchanan County, IA Population of Racial Groups in Census 2020
Race
Population
% of County Population
White Alone 19,696 95.77
Two Or More Races 605 2.94
Some Other Race Alone 100 0.49
Black or African American Alone 72 0.35
Asian Alone 52 0.25
American Indian and Alaska Native Alone 28 0.14
Native Hawaiian And Pacific Islander Alone 12 0.06
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Buchanan County, IA Population of Ethnicity Groups in Census 2020
Ethnicity
Population
% of County Population
Non-Hispanic - White Alone 19,565 95.14
Non-Hispanic - Two or More Races 494 2.40
Hispanic - White Alone 131 0.64
Hispanic - Two or More Races 111 0.54
Hispanic - Some Other Race Alone 83 0.40
Non-Hispanic - Black Alone 70 0.34
Non-Hispanic - Asian Alone 52 0.25
Non-Hispanic - American Indian & Alaska Native 18 0.09
Non-Hispanic - Some Other Race Alone 17 0.08
Non-Hispanic - Native Hawaiian & Pac. Islander 11 0.05
Hispanic - American Indian & Alaska Native 10 0.05
Hispanic - Black Alone 2 0.01
Hispanic - Native Hawaiian & Pac. Islander 1 0.01
Hispanic - Asian Alone 0 0.00
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