Glacier County Demographics

A map of Glacier County's Population by Race

Glacier County, Montana has an estimated population of 13,637, a slight decrease from the 13,778 recorded in the 2020 Census. The population is 63.8% Native American/Other, 29.5% White, 3.0% Multiracial, 2.9% Hispanic, 0.6% Asian, and 0.2% Black. This demographic dot map shows the population of Glacier County, with one dot drawn for each person counted by the Census, color-coded by race.

Glacier has become slightly more racially diverse since the 2020 Census. It is considerably more 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 Glacier County, that probability was 49.4% in 2020 and 50.4% in the most recent ACS estimates.

Glacier County is ranked the 13th most populous county in Montana, out of 56 counties. Glacier County was ranked the 13th most populous county in the 2020 Census.

Glacier County's White Population

4,029 residents of Glacier County, or 29.5% of the population, identify as White. The share of White residents in Glacier County is significantly lower than in Montana overall, where 83.6% of the population is White. Glacier County ranks 56th statewide in terms of White residents as a share of the population, out of 56 counties.

Since the 2020 Census, Glacier County's White population has grown by an estimated 15.2%. White residents' share of Glacier County's population has increased from 25.4% to 29.5%.

Glacier County is less White than neighboring Pondera County (78.9% White), Flathead County (90% White), Teton County (91.5% White), Toole County (82.2% White), and Lake County (64.6% White).

Glacier County's Black Population

27 residents of Glacier County, or 0.2% of the population, identify as Black. The share of Black residents in Glacier County is comparable to the share in Montana overall, where 0.4% of the population is Black. Glacier County ranks 41st statewide in terms of Black residents as a share of the population, out of 56 counties.

Since the 2020 Census, Glacier County's Black population has grown by an estimated 42.1%. Black residents' share of Glacier County's population has remained roughly unchanged at 0.2%.

Glacier County is more Black than neighboring Pondera County (0% Black). Glacier County is less Black than neighboring Teton County (0.3% Black), and Toole County (1.7% Black).

Glacier County's Asian Population

81 residents of Glacier County, or 0.6% of the population, identify as Asian. The share of Asian residents in Glacier County is comparable to the share in Montana overall, where 0.8% of the population is Asian. Glacier County ranks 39th statewide in terms of Asian residents as a share of the population, out of 56 counties.

Since the 2020 Census, Glacier County's Asian population has grown by an estimated 107.7%. Asian residents' share of Glacier County's population has remained roughly unchanged at 0.6%.

Glacier County is more Asian than neighboring Teton County (0% Asian). Glacier County is less Asian than neighboring Pondera County (1% Asian), Flathead County (0.8% Asian), Toole County (1.2% Asian), and Lake County (0.7% Asian).

Glacier County's Hispanic Population

389 residents of Glacier County, or 2.9% of the population, identify as Hispanic. The share of Hispanic residents in Glacier County is comparable to the share in Montana overall, where 4.6% of the population is Hispanic. Glacier County ranks 46th statewide in terms of Hispanic residents as a share of the population, out of 56 counties.

Since the 2020 Census, Glacier County's Hispanic population has grown by an estimated 29.2%. Hispanic residents' share of Glacier County's population has increased from 2.2% to 2.9%.

Glacier County is more Hispanic than neighboring Pondera County (2.6% Hispanic), and Teton County (2% Hispanic). Glacier County is less Hispanic than neighboring Flathead County (3.7% Hispanic), Toole County (4.4% Hispanic), and Lake County (4.3% Hispanic).

Glacier County's Native American/Other Population

8,704 residents of Glacier County, or 63.8% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Glacier County is significantly higher than in Montana overall, where 5.9% of the population is Native American/Other. Glacier County ranks 1st statewide in terms of Native American/Other residents as a share of the population, out of 56 counties.

Since the 2020 Census, Glacier County's Native American/Other population has declined by an estimated 4.5%. Native American/Other residents' share of Glacier County's population has decreased from 66.1% to 63.8%.

Glacier County is more Native American/Other than neighboring Pondera County (14.6% Native American/Other), Flathead County (1.3% Native American/Other), Teton County (2.1% Native American/Other), Toole County (5.8% Native American/Other), and Lake County (20% Native American/Other).

Glacier County's Multiracial Population

407 residents of Glacier County, or 3.0% of the population, identify as Multiracial. The share of Multiracial residents in Glacier County is comparable to the share in Montana overall, where 4.7% of the population is Multiracial. Glacier County ranks 7th statewide in terms of Multiracial residents as a share of the population, out of 56 counties.

Since the 2020 Census, Glacier County's Multiracial population has declined by an estimated 49.9%. Multiracial residents' share of Glacier County's population has decreased from 5.9% to 3.0%.

Glacier County is less Multiracial than neighboring Flathead County (4% Multiracial), Teton County (4.1% Multiracial), Toole County (4.7% Multiracial), and Lake County (10.2% 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.