Population By Race and Ethnicity in Custer, MT in 2020

Updated on June 16, 2025.

Based on the US Census Vintage data estimates, in 2020, the 11,866 population of Custer County, Montana comprised of 377 people who identified as Hispanic (3.18%), and 11,489 people who identified as Non-Hispanic (96.82%).

Race: The White Alone population was the largest racial group in Custer County, Montana with a population of 11,124 (93.75%); American Indian and Alaska Native Alone population was the second largest racial group with a population of 295 (2.49%); and Two Or More Races was the third largest racial group with a population of 259 (2.18%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Custer County, Montana in 2020, with a population of 10,828 (91.25%); the second largest ethnic group was White Alone - Hispanic with a population of 296 (2.5%); and the third largest ethnic group was American Indian and Alaska Native Alone - Non Hispanic with a population of 254 (2.14%).

The charts and tables below shows the population and percentage of each racial and ethnicity group in Custer, Montana.

You can find similar information for other Montana counties, and for Montana.

See this for other years:
Hispanics and Non Hispanics in Custer, MT in 2020
Total Population:
Race in Custer, MT in 2020
Total Population:
Ethnicity in Custer, MT in 2020
Total Population:
Population By Race in Custer , MT in 2020
Race Population Percentage
Black or African American Alone 85 0.72%
White Alone 11,124 93.75%
American Indian and Alaska Native Alone 295 2.49%
Asian Alone 95 0.8%
Native Hawaiian And Pacific Islander Alone 8 0.07%
Two Or More Races 259 2.18%
Population By Ethnicity in Custer , MT in 2020
Ethnicity Population Percentage
Black or African American Alone - Hispanic 1 0.01%
White Alone - Hispanic 296 2.5%
American Indian and Alaska Native Alone - Hispanic 41 0.35%
Asian Alone - Hispanic 0 0%
Native Hawaiian And Pacific Islander Alone - Hispanic 6 0.05%
Two Or More Races - Hispanic 33 0.28%
Black or African American Alone - Non Hispanic 84 0.71%
White Alone - Non Hispanic 10,828 91.25%
American Indian and Alaska Native Alone - Non Hispanic 254 2.14%
Asian Alone - Non Hispanic 95 0.8%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 2 0.02%
Two Or More Races - Non Hispanic 226 1.91%