Population By Race and Ethnicity in Lewis and Clark County, MT in 2019

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2019, the 69,578 population of Lewis and Clark County, Montana comprised of 2,478 people who identified as Hispanic (3.56%), and 67,100 people who identified as Non-Hispanic (96.44%).

Race: The White Alone population was the largest racial group in Lewis and Clark County, Montana with a population of 65,259 (93.79%); Two Or More Races population was the second largest racial group with a population of 1,828 (2.63%); and American Indian and Alaska Native Alone was the third largest racial group with a population of 1,534 (2.21%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Lewis and Clark County, Montana in 2019, with a population of 63,307 (90.99%); the second largest ethnic group was White Alone - Hispanic with a population of 1,952 (2.81%); and the third largest ethnic group was Two Or More Races - Non Hispanic with a population of 1,623 (2.33%).

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

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

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Hispanics and Non Hispanics in Lewis and Clark County, MT in 2019
Total Population:
Race in Lewis and Clark County, MT in 2019
Total Population:
Ethnicity in Lewis and Clark County, MT in 2019
Total Population:
Population By Race in Lewis and Clark , MT in 2019
Race Population Percentage
Black or African American Alone 341 0.49%
White Alone 65,259 93.79%
American Indian and Alaska Native Alone 1,534 2.21%
Asian Alone 552 0.79%
Native Hawaiian And Pacific Islander Alone 64 0.09%
Two Or More Races 1,828 2.63%
Population By Ethnicity in Lewis and Clark , MT in 2019
Ethnicity Population Percentage
Black or African American Alone - Hispanic 43 0.06%
White Alone - Hispanic 1,952 2.81%
American Indian and Alaska Native Alone - Hispanic 236 0.34%
Asian Alone - Hispanic 19 0.03%
Native Hawaiian And Pacific Islander Alone - Hispanic 23 0.03%
Two Or More Races - Hispanic 205 0.3%
Black or African American Alone - Non Hispanic 298 0.43%
White Alone - Non Hispanic 63,307 90.99%
American Indian and Alaska Native Alone - Non Hispanic 1,298 1.87%
Asian Alone - Non Hispanic 533 0.77%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 41 0.06%
Two Or More Races - Non Hispanic 1,623 2.33%