Population By Race and Ethnicity in Yellowstone County, MT in 2020

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2020, the 165,196 population of Yellowstone County, Montana comprised of 10,121 people who identified as Hispanic (6.13%), and 155,075 people who identified as Non-Hispanic (93.87%).

Race: The White Alone population was the largest racial group in Yellowstone County, Montana with a population of 149,031 (90.22%); American Indian and Alaska Native Alone population was the second largest racial group with a population of 8,307 (5.03%); and Two Or More Races was the third largest racial group with a population of 5,273 (3.19%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Yellowstone County, Montana in 2020, with a population of 141,264 (85.51%); the second largest ethnic group was White Alone - Hispanic with a population of 7,767 (4.7%); and the third largest ethnic group was American Indian and Alaska Native Alone - Non Hispanic with a population of 6,819 (4.13%).

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

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

See this for other years:
Hispanics and Non Hispanics in Yellowstone County, MT in 2020
Total Population:
Race in Yellowstone County, MT in 2020
Total Population:
Ethnicity in Yellowstone County, MT in 2020
Total Population:
Population By Race in Yellowstone , MT in 2020
Race Population Percentage
Black or African American Alone 1,185 0.72%
White Alone 149,031 90.22%
American Indian and Alaska Native Alone 8,307 5.03%
Asian Alone 1,285 0.78%
Native Hawaiian And Pacific Islander Alone 115 0.07%
Two Or More Races 5,273 3.19%
Population By Ethnicity in Yellowstone , MT in 2020
Ethnicity Population Percentage
Black or African American Alone - Hispanic 127 0.08%
White Alone - Hispanic 7,767 4.7%
American Indian and Alaska Native Alone - Hispanic 1,488 0.9%
Asian Alone - Hispanic 72 0.04%
Native Hawaiian And Pacific Islander Alone - Hispanic 14 0.01%
Two Or More Races - Hispanic 653 0.4%
Black or African American Alone - Non Hispanic 1,058 0.64%
White Alone - Non Hispanic 141,264 85.51%
American Indian and Alaska Native Alone - Non Hispanic 6,819 4.13%
Asian Alone - Non Hispanic 1,213 0.73%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 101 0.06%
Two Or More Races - Non Hispanic 4,620 2.8%