Obrien, Iowa Census 2020 Population By Race and Ethnicity

Updated on February 22, 2026.

According to the data from the US 2020 decennial Census, in April 2020, the 14.18K population of Obrien, IA residents comprised of 985 residents who identified as Hispanic or Latino (6.95%), and 13.20K residents who identified as Non-Hispanic (93.06%).

Race: The White Alone population was the largest racial group in Obrien, IA, with a population of 12.83K (90.43%). The Two Or More Races population was the second largest racial group in Obrien, IA, with a population of 649 (4.58%). The Some Other Race Alone population was the third largest racial group in Obrien, IA, with a population of 376 (2.65%). The smallest racial group in Obrien, IA was Native Hawaiian And Pacific Islander Alone with a population of 11 (0.08%).

Ethnicity: The Non-Hispanic - White Alone population was the largest ethnic group in Obrien, IA, with a population of 12.61K (88.91%). The Hispanic - Two or More Races population was the second largest ethnic group in Obrien, IA, with a population of 375 (2.64%). The Hispanic - Some Other Race Alone population was the third largest ethnic group in Obrien, IA, with a population of 350 (2.47%). The smallest ethnic group in Obrien, 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 Obrien, Iowa from the 2020 decennial census.

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

Obrien, IA Hispanics and Non Hispanics Population in Census 2020
Total Population:
Obrien, IA Racial Groups in Census 2020
Total Population:
Obrien, IA Ethnicity Groups in Census 2020
Total Population:
Obrien, IA Population of Racial Groups in Census 2020
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Race Population % of County Population
Black or African American Alone 161 1.14
White Alone 12825 90.43
American Indian and Alaska Native Alone 80 0.56
Asian Alone 80 0.56
Native Hawaiian And Pacific Islander Alone 11 0.08
Some Other Race Alone 376 2.65
Two Or More Races 649 4.58
Obrien, IA Population of Ethnicity Groups in Census 2020
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Ethnicity Population % of County Population
Non-Hispanic - White Alone 12609 88.91
Hispanic - Two or More Races 375 2.64
Hispanic - Some Other Race Alone 350 2.47
Non-Hispanic - Two or More Races 274 1.93
Hispanic - White Alone 216 1.52
Non-Hispanic - Black Alone 159 1.12
Non-Hispanic - Asian Alone 79 0.56
Hispanic - American Indian & Alaska Native 41 0.29
Non-Hispanic - American Indian & Alaska Native 39 0.28
Non-Hispanic - Some Other Race Alone 26 0.18
Non-Hispanic - Native Hawaiian & Pac. Islander 11 0.08
Hispanic - Black Alone 2 0.01
Hispanic - Asian Alone 1 0.01
Hispanic - Native Hawaiian & Pac. Islander 0 0.00