Hamilton 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 15.04K population of Hamilton County, IA residents comprised of 1.47K residents who identified as Hispanic or Latino (9.74%), and 13.57K residents who identified as Non-Hispanic (90.26%).

Race: The White Alone population was the largest racial group in Hamilton County, IA, with a population of 13.08K (86.97%). The Two Or More Races population was the second largest racial group in Hamilton County, IA, with a population of 789 (5.25%). The Some Other Race Alone population was the third largest racial group in Hamilton County, IA, with a population of 672 (4.47%). The smallest racial group in Hamilton County, IA was Native Hawaiian And Pacific Islander Alone with a population of 0 (0.00%).

Ethnicity: The Non-Hispanic - White Alone population was the largest ethnic group in Hamilton County, IA, with a population of 12.70K (84.46%). The Hispanic - Some Other Race Alone population was the second largest ethnic group in Hamilton County, IA, with a population of 645 (4.29%). The Non-Hispanic - Two or More Races population was the third largest ethnic group in Hamilton County, IA, with a population of 418 (2.78%). The smallest ethnic group in Hamilton County, IA was Hispanic - Native Hawaiian & Pac. Islander 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 Hamilton County, Iowa from the 2020 decennial census.

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

Hamilton County, IA Hispanics and Non Hispanics Population in Census 2020
Total Population:15,039
90.26%9.74%
Non Hispanic (90.26%)
Hispanic (9.74%)
Hamilton County, IA Racial Groups in Census 2020
Total Population:15,039
86.97%
White Alone (86.97%)
Two or more races (5.25%)
Some Other Race Alone (4.47%)
Asian Alone (2.12%)
Black or African American Alone (0.69%)
American Indian and Alaska Native Alone (0.51%)
Native Hawaiian And Pacific Islander Alone (0.00%)
Hamilton County, IA Ethnicity Groups in Census 2020
Total Population:15,039
84.46%
Non-Hispanic - White Alone (84.46%)
Hispanic - Some Other Race Alone (4.29%)
Non-Hispanic - Two or more races (2.78%)
Hispanic - White Alone (2.51%)
Hispanic - Two or more races (2.47%)
Non-Hispanic - Asian Alone (2.09%)
All Other Ethnicities (0.83%)
Non-Hispanic - Black or African American Alone (0.59%)
Hamilton County, IA Population of Racial Groups in Census 2020
Race
Population
% of County Population
White Alone 13,079 86.97
Two Or More Races 789 5.25
Some Other Race Alone 672 4.47
Asian Alone 319 2.12
Black or African American Alone 103 0.69
American Indian and Alaska Native Alone 77 0.51
Native Hawaiian And Pacific Islander Alone 0 0.00
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Hamilton County, IA Population of Ethnicity Groups in Census 2020
Ethnicity
Population
% of County Population
Non-Hispanic - White Alone 12,702 84.46
Hispanic - Some Other Race Alone 645 4.29
Non-Hispanic - Two or More Races 418 2.78
Hispanic - White Alone 377 2.51
Hispanic - Two or More Races 371 2.47
Non-Hispanic - Asian Alone 314 2.09
Non-Hispanic - Black Alone 88 0.59
Hispanic - American Indian & Alaska Native 52 0.35
Non-Hispanic - Some Other Race Alone 27 0.18
Non-Hispanic - American Indian & Alaska Native 25 0.17
Hispanic - Black Alone 15 0.10
Hispanic - Asian Alone 5 0.03
Non-Hispanic - Native Hawaiian & Pac. Islander 0 0.00
Hispanic - Native Hawaiian & Pac. Islander 0 0.00
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