Missoula County Demographics

A map of Missoula County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	103,132	99,953	85.5%	84.8%
Hispanic	6,096	6,004	5.1%	5.1%
Multiracial	6,022	6,196	5.0%	5.3%
Native American/Other	3,033	3,640	2.5%	3.1%
Asian	1,876	1,423	1.6%	1.2%
Black	513	706	0.4%	0.6%

Missoula County, Montana has an estimated population of 120,672, a slight increase from the 117,922 recorded in the 2020 Census. The population is 85.5% White, 5.1% Hispanic, 5.0% Multiracial, 2.5% Native American/Other, 1.6% Asian, and 0.4% Black. This demographic dot map shows the population of Missoula County, with one dot drawn for each person counted by the Census, color-coded by race.

Missoula has become less racially diverse since the 2020 Census. It is less diverse than Montana overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Missoula County, that probability was 27.5% in 2020 and 26.4% in the most recent ACS estimates.

Missoula County is ranked the 3rd most populous county in Montana, out of 56 counties. Missoula County was ranked the 3rd most populous county in the 2020 Census.

Missoula County's White Population

103,132 residents of Missoula County, or 85.5% of the population, identify as White. The share of White residents in Missoula County is comparable to the share in Montana overall, where 83.6% of the population is White. Missoula County ranks 42nd statewide in terms of White residents as a share of the population, out of 56 counties.

Since the 2020 Census, Missoula County's White population has grown by an estimated 3.2%. White residents' share of Missoula County's population has increased from 84.8% to 85.5%.

Missoula County is more White than neighboring Lake County (64.6% White). Missoula County is less White than neighboring Granite County (90% White), Ravalli County (88.6% White), Powell County (86.8% White), and Mineral County (88.9% White).

Missoula County's Black Population

513 residents of Missoula County, or 0.4% of the population, identify as Black. The share of Black residents in Missoula County is comparable to the share in Montana overall, where 0.4% of the population is Black. Missoula County ranks 7th statewide in terms of Black residents as a share of the population, out of 56 counties.

Since the 2020 Census, Missoula County's Black population has declined by an estimated 27.3%. Black residents' share of Missoula County's population has remained roughly unchanged at 0.4%.

Missoula County is more Black than neighboring Lake County (0.2% Black), Granite County (0.1% Black), Ravalli County (0.3% Black), and Mineral County (0.2% Black).

Missoula County's Asian Population

1,876 residents of Missoula County, or 1.6% of the population, identify as Asian. The share of Asian residents in Missoula County is comparable to the share in Montana overall, where 0.8% of the population is Asian. Missoula County ranks 1st statewide in terms of Asian residents as a share of the population, out of 56 counties.

Since the 2020 Census, Missoula County's Asian population has grown by an estimated 31.8%. Asian residents' share of Missoula County's population has remained roughly unchanged at 1.6%.

Missoula County is more Asian than neighboring Lake County (0.7% Asian), Granite County (0.9% Asian), Ravalli County (0.7% Asian), Powell County (1.5% Asian), and Mineral County (0.3% Asian).

Missoula County's Hispanic Population

6,096 residents of Missoula County, or 5.1% of the population, identify as Hispanic. The share of Hispanic residents in Missoula County is comparable to the share in Montana overall, where 4.6% of the population is Hispanic. Missoula County ranks 3rd statewide in terms of Hispanic residents as a share of the population, out of 56 counties.

Since the 2020 Census, Missoula County's Hispanic population has grown by an estimated 1.5%. Hispanic residents' share of Missoula County's population has remained roughly unchanged at 5.1%.

Missoula County is more Hispanic than neighboring Lake County (4.3% Hispanic), Granite County (2.6% Hispanic), Ravalli County (4.1% Hispanic), Powell County (2.7% Hispanic), and Mineral County (3.7% Hispanic).

Missoula County's Native American/Other Population

3,033 residents of Missoula County, or 2.5% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Missoula County is slightly lower than in Montana overall, where 5.9% of the population is Native American/Other. Missoula County ranks 17th statewide in terms of Native American/Other residents as a share of the population, out of 56 counties.

Since the 2020 Census, Missoula County's Native American/Other population has declined by an estimated 16.7%. Native American/Other residents' share of Missoula County's population has decreased from 3.1% to 2.5%.

Missoula County is more Native American/Other than neighboring Granite County (2.4% Native American/Other), Ravalli County (1.5% Native American/Other), and Mineral County (1.6% Native American/Other). Missoula County is less Native American/Other than neighboring Lake County (20% Native American/Other), and Powell County (5.1% Native American/Other).

Missoula County's Multiracial Population

6,022 residents of Missoula County, or 5.0% of the population, identify as Multiracial. The share of Multiracial residents in Missoula County is comparable to the share in Montana overall, where 4.7% of the population is Multiracial. Missoula County ranks 12th statewide in terms of Multiracial residents as a share of the population, out of 56 counties.

Since the 2020 Census, Missoula County's Multiracial population has declined by an estimated 2.8%. Multiracial residents' share of Missoula County's population has remained roughly unchanged at 5.0%.

Missoula County is more Multiracial than neighboring Granite County (4% Multiracial), Ravalli County (4.8% Multiracial), and Powell County (3.5% Multiracial). Missoula County is less Multiracial than neighboring Lake County (10.2% Multiracial), and Mineral County (5.3% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.