Decatur, 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 2.76K population of Decatur, KS residents comprised of 76 residents who identified as Hispanic or Latino (2.75%), and 2.69K residents who identified as Non-Hispanic (97.25%).

Race: The White Alone population was the largest racial group in Decatur, KS, with a population of 2.61K (94.25%). The Two Or More Races population was the second largest racial group in Decatur, KS, with a population of 119 (4.31%). The Asian Alone population was the third largest racial group in Decatur, KS, with a population of 15 (0.54%). The smallest racial group in Decatur, 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 Decatur, KS, with a population of 2.57K (92.80%). The Non-Hispanic - Two or More Races population was the second largest ethnic group in Decatur, KS, with a population of 94 (3.40%). The Hispanic - White Alone population was the third largest ethnic group in Decatur, KS, with a population of 40 (1.45%). The smallest ethnic group in Decatur, 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 Decatur, Kansas from the 2020 decennial census.

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

Decatur, KS Hispanics and Non Hispanics Population in Census 2020
Total Population:
Decatur, KS Racial Groups in Census 2020
Total Population:
Decatur, KS Ethnicity Groups in Census 2020
Total Population:
Decatur, KS Population of Racial Groups in Census 2020
Items per page:
0 of 0
Race Population % of County Population
Black or African American Alone 9 0.33
White Alone 2605 94.25
American Indian and Alaska Native Alone 9 0.33
Asian Alone 15 0.54
Native Hawaiian And Pacific Islander Alone 0 0.00
Some Other Race Alone 7 0.25
Two Or More Races 119 4.31
Decatur, KS Population of Ethnicity Groups in Census 2020
Items per page:
0 of 0
Ethnicity Population % of County Population
Non-Hispanic - White Alone 2565 92.80
Non-Hispanic - Two or More Races 94 3.40
Hispanic - White Alone 40 1.45
Hispanic - Two or More Races 25 0.90
Non-Hispanic - Asian Alone 10 0.36
Non-Hispanic - Black Alone 9 0.33
Non-Hispanic - American Indian & Alaska Native 7 0.25
Hispanic - Asian Alone 5 0.18
Hispanic - Some Other Race Alone 4 0.14
Non-Hispanic - Some Other Race Alone 3 0.11
Hispanic - American Indian & Alaska Native 2 0.07
Hispanic - Black Alone 0 0.00
Non-Hispanic - Native Hawaiian & Pac. Islander 0 0.00
Hispanic - Native Hawaiian & Pac. Islander 0 0.00