Ottawa, Kansas 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 5.74K population of Ottawa, KS residents comprised of 144 residents who identified as Hispanic or Latino (2.51%), and 5.59K residents who identified as Non-Hispanic (97.49%).

Race: The White Alone population was the largest racial group in Ottawa, KS, with a population of 5.34K (93.08%). The Two Or More Races population was the second largest racial group in Ottawa, KS, with a population of 304 (5.30%). The Black or African American Alone population was the third largest racial group in Ottawa, KS, with a population of 30 (0.52%). The smallest racial group in Ottawa, KS 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 Ottawa, KS, with a population of 5.27K (91.86%). The Non-Hispanic - Two or More Races population was the second largest ethnic group in Ottawa, KS, with a population of 246 (4.29%). The Hispanic - White Alone population was the third largest ethnic group in Ottawa, KS, with a population of 70 (1.22%). The smallest ethnic group in Ottawa, KS 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 Ottawa, Kansas from the 2020 decennial census.

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

Ottawa, KS Hispanics and Non Hispanics Population in Census 2020
Total Population:
Ottawa, KS Racial Groups in Census 2020
Total Population:
Ottawa, KS Ethnicity Groups in Census 2020
Total Population:
Ottawa, KS Population of Racial Groups in Census 2020
Items per page:
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Race Population % of County Population
Black or African American Alone 30 0.52
White Alone 5338 93.08
American Indian and Alaska Native Alone 22 0.38
Asian Alone 11 0.19
Native Hawaiian And Pacific Islander Alone 0 0.00
Some Other Race Alone 30 0.52
Two Or More Races 304 5.30
Ottawa, KS Population of Ethnicity Groups in Census 2020
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Ethnicity Population % of County Population
Non-Hispanic - White Alone 5268 91.86
Non-Hispanic - Two or More Races 246 4.29
Hispanic - White Alone 70 1.22
Hispanic - Two or More Races 58 1.01
Non-Hispanic - Black Alone 30 0.52
Non-Hispanic - American Indian & Alaska Native 22 0.38
Non-Hispanic - Some Other Race Alone 15 0.26
Hispanic - Some Other Race Alone 15 0.26
Non-Hispanic - Asian Alone 10 0.17
Hispanic - Asian Alone 1 0.02
Hispanic - Black Alone 0 0.00
Hispanic - American Indian & Alaska Native 0 0.00
Non-Hispanic - Native Hawaiian & Pac. Islander 0 0.00
Hispanic - Native Hawaiian & Pac. Islander 0 0.00