Gallatin County Demographics

A map of Gallatin County's Population by Race

Gallatin County, Montana had a population of 118,960 in 2020. It was 87.4% White, 0.4% Black, 1.2% Asian, 5.0% Hispanic, 1.3% Native American/Other, and 4.7% Multiracial. This map presents the population of Gallatin County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Gallatin County is the 2nd most populous county of the 56 counties in Montana.

Gallatin County's White Population

104,003 residents of Gallatin County identify as White, or 87.4%. This makes the White share of the population of Gallatin County roughly similar to the White share of the population of Montana (83.1% White). Of the 56 counties in Montana, Gallatin County is ranked #38 in terms of White residents as a share of the population.

Gallatin County is less White than neighboring Park County (91% White), Madison County (92.3% White), Broadwater County (90.8% White), Meagher County (92.4% White), and Jefferson County (90.4% White).

Gallatin County's Black Population

493 residents of Gallatin County identify as Black, or 0.4%. This makes the Black share of the population of Gallatin County roughly similar to the Black share of the population of Montana (0.5% Black). Of the 56 counties in Montana, Gallatin County is ranked #11 in terms of Black residents as a share of the population.

Gallatin County is more Black than neighboring Madison County (0.1% Black), Broadwater County (0.3% Black), and Jefferson County (0.1% Black). Gallatin County is less Black than neighboring Meagher County (0.6% Black).

Gallatin County's Asian Population

1,389 residents of Gallatin County identify as Asian, or 1.2%. This makes the Asian share of the population of Gallatin County roughly similar to the Asian share of the population of Montana (0.7% Asian). Of the 56 counties in Montana, Gallatin County is ranked #2 in terms of Asian residents as a share of the population.

Gallatin County is more Asian than neighboring Park County (0.4% Asian), Madison County (0.3% Asian), Broadwater County (0.1% Asian), Meagher County (0.1% Asian), and Jefferson County (0.4% Asian).

Gallatin County's Hispanic Population

5,895 residents of Gallatin County identify as Hispanic, or 5.0%. This makes the Hispanic share of the population of Gallatin County roughly similar to the Hispanic share of the population of Montana (4.2% Hispanic). Of the 56 counties in Montana, Gallatin County is ranked #4 in terms of Hispanic residents as a share of the population.

Gallatin County is more Hispanic than neighboring Park County (3% Hispanic), Madison County (2.8% Hispanic), Broadwater County (3% Hispanic), Meagher County (2.4% Hispanic), and Jefferson County (2.4% Hispanic).

Gallatin County's Native American/Other Population

1,562 residents of Gallatin County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 1.3%. This makes the Native American/Other share of the population of Gallatin County slightly less than the Native American/Other share of the population of Montana (6.4% Native American/Other). Of the 56 counties in Montana, Gallatin County is ranked #41 in terms of Native American/Other residents as a share of the population.

Gallatin County is more Native American/Other than neighboring Park County (1.1% Native American/Other), Madison County (0.9% Native American/Other), Broadwater County (1% Native American/Other), and Meagher County (0.6% Native American/Other). Gallatin County is less Native American/Other than neighboring Jefferson County (1.7% Native American/Other).

Gallatin County's Multiracial Population

5,618 residents of Gallatin County identify as Multiracial, or 4.7%. This makes the Multiracial share of the population of Gallatin County roughly similar to the Multiracial share of the population of Montana (5% Multiracial). Of the 56 counties in Montana, Gallatin County is ranked #26 in terms of Multiracial residents as a share of the population.

Gallatin County is more Multiracial than neighboring Park County (4.2% Multiracial), Madison County (3.6% Multiracial), and Meagher County (3.8% Multiracial). Gallatin County is less Multiracial than neighboring Broadwater County (4.9% Multiracial), and Jefferson County (5% Multiracial).

Source: 2020 Census State Redistricting Data and Census TIGER/Line Shapefiles.