Gallatin County, Montana

Gallatin County: County in Montana, United States

About

Gallatin County is a county located in the U.S. state of Montana. As of the 2010 census, the population was 89,513 and a population density of 13 people per km². After 10 years in 2020 county had an estimated population of 116,806 inhabitants. Its county seat is Bozeman. The county was created 161 years ago in 1863.

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

Quick Facts about Gallatin County

Population : 116,806 (2020)
Country : United States of America
State : Montana (United States)
Different from : Gallatin County, Gallatin County
Twitter username : gallatin_county
Area : 6816 km2
Water as percent of area : 1.1%
Land as percent of area : 98.9%
Named for : Albert Gallatin
Altitude : 4,711 feet / 1436 meters
Capital : Bozeman
Establishment : January 01, 1864
Time Zone : America/Denver
Local time : 01:48:27 (22nd February 2025)
Density : 17 Pop. per km² as of 2020
Population growth : 23.37% (2010-2020)
Looking ENE - Gallatin County Courthouse - Bozeman Montana - 2013-070-09 image
Looking ENE - Gallatin County Courthouse - Bozeman Montana - 2013-070-09
Looking ENE - Gallatin County Courthouse - Bozeman Montana - 2013-070-09 image
Looking ENE - Gallatin County Courthouse - Bozeman Montana - 2013-070-09 image

Geography

Gallatin County is located at 45°32'26"N 111°10'13"W (45.5404900, -111.1703500). It has 3 neighbors: Fremont County, Broadwater County and Meagher County.

Gallatin County map

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The largest city of Gallatin County is Belgrade with a population of 10,390. Other cities include and Three Forks population 1,926. See all Gallatin County cities & populated places.

Gallatin County Populated Places

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

City Name Population Title
Bozeman 50,970 Town in Gallatin County, Montana, United States
Belgrade 10,390 City in Gallatin County, Montana, USA
Big Sky 2,308 Census designated place
Three Forks 1,926 City in Gallatin County, Montana, United States
Manhattan 1,917 Town in Montana
West Yellowstone 1,372 Town of the United States

Gallatin County has 3 neighbours.

  • Bozeman

Demographics

The population of Gallatin County increased by 23.37% in 10 years.

Year Population % Change Method
2010 89,513 - census
2011 91,375 2.04% estimation process
2012 92,570 1.29% estimation process
2013 94,798 2.35% estimation process
2014 97,508 2.78% estimation process
2015 100,882 3.34% estimation process
2016 104,739 3.68% estimation process
2017 108,576 3.53% estimation process
2018 111,682 2.78% estimation process
2019 114,434 2.4% estimation process
2020 116,806 2.03% estimation process

Comitatul Gallatin, Comte de Gallatin, Comté de Gallatin, Condado de Gallatin, Condado han Gallatin, Contea di Gallatin, Galatin srjan, Galatun, Gallatin, Gallatin Kun, Gallatin Kūn, Gallatin konderria, Gallatin megye, Gallatini maakond, Hrabstwo Gallatin, Okrug Galatin, Quan Gallatin, Quận Gallatin, gyalatina ka'unti, gyaratin jun, jia la ting xian, mqatʿt ghlatyn, shhrstan galatyn mwntana, Галатън, Галлатин, Округ Галатин, Ґаллатін, Գալատին շրջան, شهرستان گالاتین، مونتانا, مقاطعة غلاتين, گلاٹن کاؤنٹی،مونٹانا, گیلیٹن کاؤنٹی، مونٹانا, গ্যালাটিন কাউন্টি, ギャラティン郡, 加拉廷縣

People born in Gallatin County (1)

American sport shooter Samuel Sharman was born in Gallatin County

Other places with the same name (3)

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.
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