Roundup City, Montana Census 2020 Voting-age Population By Race and Ethnicity

Updated on February 22, 2026.

According to the data from the US 2020 decennial Census, in April 2020, the 1.38K voting-age population of Roundup City, MT residents comprised of 47 residents who identified as Hispanic or Latino (3.40%), and 1.34K residents who identified as Non-Hispanic (96.60%).

Race: The White Alone voting-age population was the largest racial group in Roundup City, MT, with a voting-age population of 1.27K (92.05%). The Two Or More Races voting-age population was the second largest racial group in Roundup City, MT, with a voting-age population of 54 (3.91%). The American Indian and Alaska Native Alone voting-age population was the third largest racial group in Roundup City, MT, with a voting-age population of 27 (1.95%). The smallest racial group in Roundup City, MT was Black or African American Alone with a voting-age population of 2 (0.14%).

Ethnicity: The Non-Hispanic - White Alone voting-age population was the largest ethnic group in Roundup City, MT, with a voting-age population of 1.25K (90.09%). The Non-Hispanic - Two or More Races voting-age population was the second largest ethnic group in Roundup City, MT, with a voting-age population of 49 (3.54%). The Hispanic - White Alone voting-age population was the third largest ethnic group in Roundup City, MT, with a voting-age population of 27 (1.95%). The smallest ethnic group in Roundup City, MT was Hispanic - Asian Alone with a voting-age population of 0 (0.00%).

The charts and tables below shows the voting-age population and percentage of each racial group and ethnicity group in Roundup City, Montana from the 2020 decennial census.

You can see similar information for other cities and places in Montana and also for the state of Montana.

Roundup City, MT Voting-age Hispanics and Non Hispanics Population in Census 2020
Total Voting-age Population:
Roundup City, MT Voting-age Racial Groups in Census 2020
Total Voting-age Population:
Roundup City, MT Voting-age Ethnicity Groups in Census 2020
Total Voting-age Population:
Roundup City, MT Voting-age Population of Racial Groups in Census 2020
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Race Voting-age Population % of City or Place Voting-age Population
Black or African American Alone 2 0.14
White Alone 1273 92.05
American Indian and Alaska Native Alone 27 1.95
Asian Alone 12 0.87
Native Hawaiian And Pacific Islander Alone 3 0.22
Some Other Race Alone 12 0.87
Two Or More Races 54 3.91
Roundup City, MT Voting-age Population of Ethnicity Groups in Census 2020
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Ethnicity Voting-age Population % of City or Place Voting-age Population
Non-Hispanic - White Alone 1246 90.09
Non-Hispanic - Two or More Races 49 3.54
Hispanic - White Alone 27 1.95
Non-Hispanic - American Indian & Alaska Native 26 1.88
Non-Hispanic - Asian Alone 12 0.87
Hispanic - Some Other Race Alone 11 0.80
Hispanic - Two or More Races 5 0.36
Hispanic - Black Alone 2 0.14
Non-Hispanic - Native Hawaiian & Pac. Islander 2 0.14
Hispanic - American Indian & Alaska Native 1 0.07
Hispanic - Native Hawaiian & Pac. Islander 1 0.07
Non-Hispanic - Some Other Race Alone 1 0.07
Non-Hispanic - Black Alone 0 0.00
Hispanic - Asian Alone 0 0.00