Population By Race and Ethnicity in Yellowstone County, MT in 2019

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2019, the 161,349 population of Yellowstone County, Montana comprised of 9,728 people who identified as Hispanic (6.03%), and 151,621 people who identified as Non-Hispanic (93.97%).

Race: The White Alone population was the largest racial group in Yellowstone County, Montana with a population of 145,826 (90.38%); American Indian and Alaska Native Alone population was the second largest racial group with a population of 7,985 (4.95%); and Two Or More Races was the third largest racial group with a population of 4,913 (3.05%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Yellowstone County, Montana in 2019, with a population of 138,483 (85.83%); the second largest ethnic group was White Alone - Hispanic with a population of 7,343 (4.55%); and the third largest ethnic group was American Indian and Alaska Native Alone - Non Hispanic with a population of 6,494 (4.03%).

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.

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Hispanics and Non Hispanics in Yellowstone County, MT in 2019
Total Population:
Race in Yellowstone County, MT in 2019
Total Population:
Ethnicity in Yellowstone County, MT in 2019
Total Population:
Population By Race in Yellowstone , MT in 2019
Race Population Percentage
Black or African American Alone 1,208 0.75%
White Alone 145,826 90.38%
American Indian and Alaska Native Alone 7,985 4.95%
Asian Alone 1,280 0.79%
Native Hawaiian And Pacific Islander Alone 137 0.09%
Two Or More Races 4,913 3.05%
Population By Ethnicity in Yellowstone , MT in 2019
Ethnicity Population Percentage
Black or African American Alone - Hispanic 155 0.1%
White Alone - Hispanic 7,343 4.55%
American Indian and Alaska Native Alone - Hispanic 1,491 0.92%
Asian Alone - Hispanic 92 0.06%
Native Hawaiian And Pacific Islander Alone - Hispanic 21 0.01%
Two Or More Races - Hispanic 626 0.39%
Black or African American Alone - Non Hispanic 1,053 0.65%
White Alone - Non Hispanic 138,483 85.83%
American Indian and Alaska Native Alone - Non Hispanic 6,494 4.03%
Asian Alone - Non Hispanic 1,188 0.74%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 116 0.07%
Two Or More Races - Non Hispanic 4,287 2.66%