Missoula County, Montana

Missoula County: County in Montana, United States


Missoula County is a county located in the U.S. state of Montana. As of the 2010 census, the population was 109,299 and a population density of 16 people per km². After 10 years in 2020 county had an estimated population of 121,630 inhabitants. Its county seat is Missoula. The county was created 159 years ago in 1863.

Missoula County locator map
Location of Missoula County on Montana map.

Quick Facts about Missoula County

Population : 121,630 (2020)
Country : United States of America
State : Montana (United States)
Twitter username : missoulacounty
Area : 6781 km2
Water as percent of area : 1%
Land as percent of area : 99%
Altitude : 5,591 feet / 1704 meters
Capital : Missoula
Establishment : January 01, 1864
Time Zone : Mountain Time Zone
Local time : 01:22:21 (5th December 2023)
Density : 18 Pop. per km² as of 2020
Population growth : 10.14% (2010-2020)
Weather : 29℉ Chance Freezing Rain 7-days weather
Missoula county courthouse image
Missoula county courthouse
Missoula county courthouse image


Missoula County is located at 47°2'11"N 113°55'25"W (47.0364900, -113.9237100). It has 9 neighbors: Powell County, Clearwater County, Idaho County, Flathead County, Granite County, Lake County, Mineral County, Ravalli County and Sanders County.

Missoula County map

The largest city of Missoula County is Missoula with a population of 76,848. . See all Missoula County cities & populated places.

Missoula County Populated Places

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

City Name Population Title
Missoula 76,848 The most populous city in Missoula County, Montana.
Orchard Homes 5,197 Census designated place
Lolo 3,892 Census-designated place (CDP) in Missoula County, Montana, United States
East Missoula 2,157 Census designated place
Frenchtown 1,825 High school in Frenchtown, Missoula County, Montana
Seeley Lake 1,659 Census designated place in Montana, USA


Missoula County forecast: A chance of snow before 8pm, then a chance of freezing rain and a chance of rain and snow. Cloudy. Low around 29, with temperatures rising to around 36 overnight. West southwest wind 10 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. Little or no snow accumulation expected. more

Missoula County has 9 neighbours.

  • Missoula


The population of Missoula County increased by 10.14% in 10 years.

Year Population % Change Method
2010 109,299 - census
2011 110,245 0.86% estimation process
2012 111,042 0.72% estimation process
2013 111,900 0.77% estimation process
2014 112,801 0.8% estimation process
2015 114,122 1.16% estimation process
2016 116,349 1.91% estimation process
2017 117,834 1.26% estimation process
2018 118,640 0.68% estimation process
2019 119,600 0.8% estimation process
2020 121,630 1.67% estimation process

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People born in Missoula County (1)

American writer Emil Petaja was born in Missoula County

Montana Other Counties (more counties)

County Name Population Title
Yellowstone County 162,990 County in Montana, United States of America
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
Cascade County 81,346 County in central 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