What is the population of Cascade County?

The population of Cascade County, MT is 81,346.

Where is Cascade County located?

Cascade County, MT is located at latitude 47.3080200 and longitude -111.3471500. It is in United States.

What is the area of Cascade County?

The area of Cascade County, MT is 7023 km².

What is the elevation of Cascade County?

Cascade County, MT has an elevation of 1257 meters (4124 feet) above sea level.

What time zone is Cascade County in?

Cascade County, MT is in the America/Denver time zone.

How has the population of Cascade County changed?

The population of Cascade County, MT has increased from 81,327 (2010) to 81,346 (2020), a change of 0%.

Cascade County, Montana

Cascade County: county in central Montana, United States

About

Cascade County is a county located in the U.S. state of Montana. As of the 2010 census, the population was 81,327 and a population density of 12 people per km². After 10 years in 2020 county had an estimated population of 81,346 inhabitants. Its county seat is Great Falls. The county was created 139 years ago in 1886.

Cascade County locator map — Location of Cascade County on Montana map.

County Snapshot

Cascade County at a glance

Cascade County currently has 5 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.

Browse county places

Mapped populated places

These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.

Montana counties

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Largest city

Great Falls

Population 58,353

Quick Facts about Cascade County

Population	81,346 (2020)
Country	United States of America
State	Montana (United States)
Area	7023 km²
Water as percent of area	0.5%
Land as percent of area	99.5%
Latitude & Longitude	47.3080,-111.3472
Altitude	4,062 feet / 1238 meters
Capital	Great Falls
Establishment	January 01, 1887
Time Zone	America/Denver
Local time	14:22:55 (22nd April 2026)
Density	12 Pop. per km² as of 2020
Population growth	0.02% (2010-2020)
Weather	49℉ Mostly Cloudy 7-days weather

Cascade Co Courthouse outside 3 image

Geography

Cascade County is located at 47°18'29"N 111°20'50"W (47.3080200, -111.3471500). It has 5 neighbors: Chouteau County, Judith Basin County, Lewis and Clark County, Meagher County and Teton County.

Cascade County map

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The largest city of Cascade County is Great Falls with a population of 58,353. Other cities include, Three Forks population 2,043, Cascade population 677, Belt population 568 and Neihart population 48. See all Cascade County cities & populated places.

Cascade County Populated Places

Cities, towns, neighborhoods & other populated places in Cascade County.

City Name	Population	Title
Great Falls	58,353	Town in Cascade County, Montana, United States
Three Forks	2,043	City in Cascade County, Montana, United States
Cascade	677	Town in Cascade County, Montana, United States
Belt	568	Town of the United States
Neihart	48	Town of the United States

Weather

49°F

Mostly Cloudy

6 to 10 mph SSE Tuesday Night

Mostly cloudy, with a low around 49. South southeast wind 6 to 10 mph.

7-Day Forecast

Official website of Cascade County

Official Website

Cascade County has 5 neighbours.

Chouteau County county in central Montana, United States
Judith Basin County county in Montana, United States
Lewis and Clark County county in Montana, United States
Meagher County county in Montana, United States
Teton County county in Montana, United States

Great Falls

Demographics

The population of Cascade County increased by 0.02% in 10 years.

Year	Population	% Change	Method
2010	81,327	-	census
2011	81,714	0.47%	estimation process
2012	81,622	-0.11%	estimation process
2013	82,194	0.7%	estimation process
2014	82,056	-0.17%	estimation process
2015	81,878	-0.22%	estimation process
2016	81,562	-0.39%	estimation process
2017	81,633	0.09%	estimation process
2018	81,688	0.07%	estimation process
2019	81,366	-0.4%	estimation process
2020	81,346	-0.02%	estimation process

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Montana Other Counties (more counties)

County Name	Population	Title
Yellowstone County	162,990	County in Montana, United States of America
Missoula County	121,630	County in Montana, United States
Billings	117,445	The most populous city in Montana.
Gallatin County	116,806	County in Montana, United States
Flathead County	105,851	County in Montana, United States
Missoula	76,848	The most populous city in Missoula County, Montana.
Lewis and Clark County	70,229	County in Montana, United States
Great Falls	58,353	Town in Cascade County, Montana, United States
Bozeman	50,970	Town in Gallatin County, Montana, United States
Ravalli County	45,002	County in Montana, United States
Silver Bow County	35,180	County in Montana, United States
Butte	34,190	Consolidated city-county in Montana, United States
Helena	33,737	State capital of Montana, United States and seat of Lewis and Clark County
Lake County	30,986	County in Montana, United States
Kalispell	25,329	City in Flathead County, Montana, United States
Lincoln County	20,343	County in Montana, United States