Cascade County Demographics

A map of Cascade County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	69,694	68,794	82.4%	81.5%
Multiracial	5,050	5,344	6.0%	6.3%
Hispanic	4,470	4,012	5.3%	4.8%
Native American/Other	3,449	4,271	4.1%	5.1%
Black	1,102	1,085	1.3%	1.3%
Asian	841	908	1.0%	1.1%

Cascade County, Montana has an estimated population of 84,606, a less than 1% change from the 84,414 recorded in the 2020 Census. The population is 82.4% White, 6.0% Multiracial, 5.3% Hispanic, 4.1% Native American/Other, 1.3% Black, and 1.0% Asian. This demographic dot map shows the population of Cascade County, with one dot drawn for each person counted by the Census, color-coded by race.

Cascade has become less racially diverse since the 2020 Census. It is 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 Cascade County, that probability was 32.7% in 2020 and 31.3% in the most recent ACS estimates.

Cascade County is ranked the 5th most populous county in Montana, out of 56 counties. Cascade County was ranked the 5th most populous county in the 2020 Census.

Cascade County's White Population

69,694 residents of Cascade County, or 82.4% of the population, identify as White. The share of White residents in Cascade County is comparable to the share in Montana overall, where 83.6% of the population is White. Cascade County ranks 47th statewide in terms of White residents as a share of the population, out of 56 counties.

Since the 2020 Census, Cascade County's White population has grown by an estimated 1.3%. White residents' share of Cascade County's population has increased from 81.5% to 82.4%.

Cascade County is more White than neighboring Chouteau County (75.4% White). Cascade County is less White than neighboring Meagher County (94% White), Broadwater County (88.9% White), Teton County (91.5% White), and Lewis and Clark County (88.6% White).

Cascade County's Black Population

1,102 residents of Cascade County, or 1.3% of the population, identify as Black. The share of Black residents in Cascade County is comparable to the share in Montana overall, where 0.4% of the population is Black. Cascade County ranks 1st statewide in terms of Black residents as a share of the population, out of 56 counties.

Since the 2020 Census, Cascade County's Black population has grown by an estimated 1.6%. Black residents' share of Cascade County's population has remained roughly unchanged at 1.3%.

Cascade County is more Black than neighboring Meagher County (0.7% Black), Broadwater County (0.2% Black), Teton County (0.3% Black), Lewis and Clark County (0.5% Black), and Chouteau County (0.1% Black).

Cascade County's Asian Population

841 residents of Cascade County, or 1.0% of the population, identify as Asian. The share of Asian residents in Cascade County is comparable to the share in Montana overall, where 0.8% of the population is Asian. Cascade County ranks 3rd statewide in terms of Asian residents as a share of the population, out of 56 counties.

Since the 2020 Census, Cascade County's Asian population has declined by an estimated 7.4%. Asian residents' share of Cascade County's population has remained roughly unchanged at 1.0%.

Cascade County is more Asian than neighboring Meagher County (0% Asian), Broadwater County (0.2% Asian), Teton County (0% Asian), Lewis and Clark County (0.5% Asian), and Chouteau County (0.1% Asian).

Cascade County's Hispanic Population

4,470 residents of Cascade County, or 5.3% of the population, identify as Hispanic. The share of Hispanic residents in Cascade County is comparable to the share in Montana overall, where 4.6% of the population is Hispanic. Cascade County ranks 5th statewide in terms of Hispanic residents as a share of the population, out of 56 counties.

Since the 2020 Census, Cascade County's Hispanic population has grown by an estimated 11.4%. Hispanic residents' share of Cascade County's population has increased from 4.8% to 5.3%.

Cascade County is more Hispanic than neighboring Meagher County (3.2% Hispanic), Broadwater County (2.8% Hispanic), Teton County (2% Hispanic), Lewis and Clark County (4% Hispanic), and Chouteau County (3.1% Hispanic).

Cascade County's Native American/Other Population

3,449 residents of Cascade County, or 4.1% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Cascade County is comparable to the share in Montana overall, where 5.9% of the population is Native American/Other. Cascade County ranks 14th statewide in terms of Native American/Other residents as a share of the population, out of 56 counties.

Since the 2020 Census, Cascade County's Native American/Other population has declined by an estimated 19.2%. Native American/Other residents' share of Cascade County's population has decreased from 5.1% to 4.1%.

Cascade County is more Native American/Other than neighboring Meagher County (1.4% Native American/Other), Broadwater County (1.2% Native American/Other), Teton County (2.1% Native American/Other), and Lewis and Clark County (1.7% Native American/Other). Cascade County is less Native American/Other than neighboring Chouteau County (16.6% Native American/Other).

Cascade County's Multiracial Population

5,050 residents of Cascade County, or 6.0% of the population, identify as Multiracial. The share of Multiracial residents in Cascade County is comparable to the share in Montana overall, where 4.7% of the population is Multiracial. Cascade County ranks 3rd statewide in terms of Multiracial residents as a share of the population, out of 56 counties.

Since the 2020 Census, Cascade County's Multiracial population has declined by an estimated 5.5%. Multiracial residents' share of Cascade County's population has remained roughly unchanged at 6.0%.

Cascade County is more Multiracial than neighboring Meagher County (0.5% Multiracial), Teton County (4.1% Multiracial), Lewis and Clark County (4.7% Multiracial), and Chouteau County (4.8% Multiracial). Cascade County is less Multiracial than neighboring Broadwater County (6.7% 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.