Gallatin County, Montana

County in Montana, United States

U.S. county in Montana

Gallatin County

U.S. county

Gallatin County Courthouse in Bozeman

Gallatin County Courthouse in Bozeman

Official seal of Gallatin County

Seal

Location within the U.S. state of Montana

Location within the U.S. state of Montana

Montana's location within the U.S.

Montana's location within the U.S.

Country|  United States
State| File:Flag of Montana.svg Montana
Founded| 1865
Named for| Gallatin River (Albert Gallatin)
Seat| West Yellowstone
Largest city| Bozeman
Area

• Total| 2,632 sq mi (6,820 km2)
• Land| 2,603 sq mi (6,740 km2)
• Water| 29 sq mi (80 km2)  1.1%
Population

(2020)

• Total| 118,960
• Estimate

(2021)

| 122,713
• Density| 45/sq mi (17/km2)
Time zone| UTC−7 (Mountain)
• Summer (DST)| UTC−6 (MDT)
Congressional district| 1st
Website| www.gallatin.mt.gov

* Montana county number 06

Gallatin County is located in the U.S. state of Montana. With its county seat in Bozeman, it is the second-most populous county in Montana, with a population of 118,960 in the 2020 Census.[1]

The county's prominent geographical features are the Bridger mountains in the north, and the Gallatin mountains and Gallatin River in the south, named by Meriwether Lewis in 1805 for Albert Gallatin,[2] the United States Treasury Secretary who formulated the Lewis and Clark Expedition.

At the southern end of the county, West Yellowstone's entrance into Yellowstone National Park accounts for around half of all park visitors. Big Sky Resort, one of the largest ski resorts in the United States, lies in Gallatin and neighboring Madison counties, midway between Bozeman and West Yellowstone.

## Contents

* 1 History
* 2 Geography
* 2.1 Major highways
* 2.2 Adjacent counties
* 2.3 National protected areas
* 3 Demographics
* 3.1 2000 census
* 3.2 2010 census
* 3.3 2020 Census
* 4 Government and politics
* 5 Communities
* 5.1 Cities
* 5.2 Towns
* 5.3 Census-designated places
* 5.4 Unincorporated communities
* 6 Notable people
* 7 See also
* 8 References
* 9 External links

## History[edit | edit source]

During the territorial era, a small patch of land known as "Lost Dakota" existed as a remote exclave of Dakota Territory until it was transferred to Gallatin County, Montana Territory, in 1873.[3]

## Geography[edit | edit source]

According to the United States Census Bureau, the county has a total area of 2,632 square miles (6,820 km2), of which 2,603 square miles (6,740 km2) is land and 29 square miles (75 km2) (1.1%) is water.[4] The county attained its present boundaries in 1978, when the former Yellowstone National Park (part) county-equivalent was dissolved and apportioned between Gallatin County and Park County. Gallatin County received 99.155 square miles (256.8 km2) of land area and 0.119 square miles (0.3 km2) of water area, whereas Park County received 146.229 square miles (378.7 km2) of land area and 0.608 square miles (1.6 km2) of water area. The geographies transferred are known now as Census Tract 14 in Gallatin County, and as Census Tract 6 in Park County.

### Major highways[edit | edit source]

* File:I-90.svg Interstate 90
* File:US 20.svg U.S. Highway 20
* File:US 191.svg U.S. Highway 191
* File:US 287.svg U.S. Highway 287
* File:MT-2.svg Montana Highway 2
* File:MT-64.svg Montana Highway 64
* File:MT-84.svg Montana Highway 84
* File:MT-85.svg Montana Highway 85
* File:MT-86.svg Montana Highway 86
* File:MT-sec-205.svg Montana Secondary Highway 205

### Adjacent counties[edit | edit source]

* Madison County \- west
* Jefferson County \- northwest
* Broadwater County \- north
* Meagher County \- northeast
* Park County \- east
* Park County, Wyoming \- southeast
* Teton County, Wyoming \- southeast
* Fremont County, Idaho \- southwest

### National protected areas[edit | edit source]

* Gallatin National Forest (part)
* Yellowstone National Park (part)

## Demographics[edit | edit source]

Historical population

Census | Pop. |  | %±
1870| 1,578| | —
1880| 3,643| | 130.9%
1890| 6,246| | 71.5%
1900| 9,553| | 52.9%
1910| 14,079| | 47.4%
1920| 15,864| | 12.7%
1930| 16,124| | 1.6%
1940| 18,269| | 13.3%
1950| 21,902| | 19.9%
1960| 26,045| | 18.9%
1970| 32,505| | 24.8%
1980| 42,865| | 31.9%
1990| 50,463| | 17.7%
2000| 67,831| | 34.4%
2010| 89,513| | 32.0%
2020| 118,960| | 32.9%
2021 (est.)| 122,713| [5]| 3.2%
US Decennial Census[6]
1790-1960[7] 1900-1990[8]
1990-2000[9] 2010-2020[1]

### 2000 census[edit | edit source]

As of the 2000 United States census,[10] there were 67,831 people, 26,323 households, and 16,188 families living in the county. The population density was 26 people per square mile (10/km2). There were 29,489 housing units at an average density of 11 per square mile (4/km2). The racial makeup of the county was:

* 96.20% White
* 0.23% Black or African American
* 0.88% Native American
* 0.89% Asian
* 0.06% Pacific Islander
* 0.54% from other races
* 1.19% from two or more races

1.54% of the population were Hispanic or Latino of any race. 23.7% were of German, 11.2% Irish, 10.4% English, 9.0% Norwegian and 5.5% American ancestry.

In the county households, 29.70% had children under the age of 18 living with them, 51.80% were married couples living together, 6.60% had a female householder with no husband present, and 38.50% were non-families. 24.10% of all households were made up of individuals, and 5.70% had someone living alone who was 65 years of age or older. The average household size was 2.46 and the average family size was 2.94.

The county population contained 22.00% under the age of 18, 18.50% from 18 to 24, 30.40% from 25 to 44, 20.60% from 45 to 64, and 8.50% who were 65 years of age or older. The median age was 31 years. For every 100 females there were 108.30 males. For every 100 females age 18 and over, there were 108.70 males.

The median income for a household in the county was $38,120, and the median income for a family was $46,639. Males had a median income of $30,866 versus $21,330 for females. The per capita income for the county was $19,074. About 6.30% of families and 12.80% of the population were below the poverty line, including 10.50% of those under age 18 and 5.60% of those age 65 or over.

### 2010 census[edit | edit source]

As of the 2010 United States census, there were 89,513 people, 36,550 households, and 21,263 families living in the county.[11] The population density was 34.4 inhabitants per square mile (13.3/km2). There were 42,289 housing units at an average density of 16.2 per square mile (6.3/km2).[12] The racial makeup of the county was 95.1% White, 1.1% Asian, 0.9% American Indian, 0.3% Black or African American, 0.1% Pacific Islander, 0.7% from other races, and 1.9% from two or more races. Those of Hispanic or Latino origin made up 2.8% of the population.[11] In terms of ancestry, 32.2% were German, 18.1% were Irish, 14.7% were English, 9.4% were Norwegian, and 3.5% were American.[13]

Of the 36,550 households, 27.8% had children under the age of 18 living with them, 47.8% were married couples living together, 6.6% had a female householder with no husband present, 41.8% were non-families, and 27.3% of all households were made up of individuals. The average household size was 2.36 and the average family size was 2.90. The median age was 32.5 years.[11]

The median income for a household in the county was $50,136 and the median income for a family was $65,029. Males had a median income of $42,245 versus $31,349 for females. The per capita income for the county was $27,423. About 7.4% of families and 13.5% of the population were below the poverty line, including 12.5% of those under age 18 and 8.2% of those age 65 or over.[14]

### 2020 Census[edit | edit source]

As of the 2020 census, there were 118,960 people and 46,990 households living in the county.[15] The population density was 45.2 inhabitants per square mile (17.5/km2). There were 52,835 housing units in the county at an average density of 20.1 per square mile (7.8/km2). [15] The racial make of the county was 89.0% White, 1.2% Asian, 0.9% American Indian, 0.4% Black of African American, 0.1% Pacific Islander, 1.8% from other races, and 6.6% from two or more races. Those of Hispanic of Latino origin made up 5.0% of the population.[16] In terms of ancestry, 25.4% were German, 14.8% were Irish, 12.4% were English, 8.8% were Norwegian, 4.6% were Italian, 4.0% were French, 3.5% were Scottish, 2.2% were Polish and 0.3% were Subsaharan African.[15]

Of the 46,990 households, 48.2% were a Married-couple family household, 23.9% were a "Male householder, no spouse present, family household", and 20.4% were a "Female householder, no spouse present, family household". The averager family size was 2.96 in the county. The median age was 33.1 years old, compared with 40.1 in Montana. [15]

The median income for a household in the county was $75,418 in the county, significantly higher than the $57,153 median household income in all of Montana. 11.9% of the population was below the poverty line, including 6.9% of those under 18 and 6.5% of those over 65.

## Government and politics[edit | edit source]

Gallatin County has traditionally favored Republican presidential candidates, often by large margins. Recent changes to Gallatin County's demographics (including migration from Democratic-leaning areas,[17] and younger voters adopting more liberal political positions)[18] have made the county more competitive.

Democratic candidates Barack Obama and Hillary Clinton narrowly won Gallatin County in 2008 and 2016 respectively, with Republican Mitt Romney winning in 2012. 2020 Democratic candidate Joe Biden won Gallatin County by the largest margin for a Democrat since Franklin Delano Roosevelt's victory in 1940.

United States presidential election results for Gallatin County, Montana[19][20] Year  | Republican | Democratic | Third party

|
|
|

No. | % | No. | % | No. | %
2020 | 31,696  | 44.65%  | 37,044  | 52.18% | 2,248  | 3.17%
2016 | 23,802  | 44.23%  | 24,246  | 45.05% | 5,771  | 10.72%
2012 | 24,358  | 50.84% | 21,961  | 45.84%  | 1,589  | 3.32%
2008 | 22,578  | 46.77%  | 24,205  | 50.14% | 1,489  | 3.08%
2004 | 22,392  | 56.20% | 16,405  | 41.18%  | 1,045  | 2.62%
2000 | 18,833  | 58.78% | 10,009  | 31.24%  | 3,198  | 9.98%
1996 | 14,559  | 50.07% | 10,972  | 37.73%  | 3,547  | 12.20%
1992 | 11,109  | 38.60% | 9,535  | 33.13%  | 8,135  | 28.27%
1988 | 13,214  | 56.94% | 9,527  | 41.06%  | 464  | 2.00%
1984 | 15,643  | 64.80% | 8,163  | 33.82%  | 334  | 1.38%
1980 | 12,738  | 58.63% | 5,747  | 26.45%  | 3,241  | 14.92%
1976 | 11,062  | 63.36% | 6,215  | 35.60%  | 183  | 1.05%
1972 | 10,663  | 66.28% | 5,096  | 31.68%  | 329  | 2.05%
1968 | 7,433  | 62.06% | 3,818  | 31.88%  | 727  | 6.07%
1964 | 5,621  | 49.97% | 5,600  | 49.79%  | 27  | 0.24%
1960 | 6,870  | 64.49% | 3,761  | 35.31%  | 21  | 0.20%
1956 | 6,680  | 67.20% | 3,260  | 32.80%  | 0  | 0.00%
1952 | 6,998  | 71.93% | 2,697  | 27.72%  | 34  | 0.35%
1948 | 4,220  | 53.08% | 3,548  | 44.63%  | 182  | 2.29%
1944 | 3,120  | 47.04%  | 3,479  | 52.46% | 33  | 0.50%
1940 | 3,430  | 41.84%  | 4,718  | 57.55% | 50  | 0.61%
1936 | 2,151  | 30.01%  | 4,697  | 65.53% | 320  | 4.46%
1932 | 2,553  | 35.98%  | 4,359  | 61.44% | 183  | 2.58%
1928 | 3,861  | 61.11% | 2,423  | 38.35%  | 34  | 0.54%
1924 | 2,494  | 44.35% | 1,564  | 27.81%  | 1,565  | 27.83%
1920 | 3,238  | 54.70% | 2,370  | 40.03%  | 312  | 5.27%
1916 | 2,527  | 40.07%  | 3,661  | 58.06% | 118  | 1.87%
1912 | 683  | 21.07%  | 1,407  | 43.41% | 1,151  | 35.51%
1908 | 1,519  | 47.19% | 1,485  | 46.13%  | 215  | 6.68%
1904 | 1,700  | 55.77% | 1,130  | 37.07%  | 218  | 7.15%
1900 | 1,146  | 45.53%  | 1,297  | 51.53% | 74  | 2.94%
1896 | 423  | 20.07%  | 1,649  | 78.23% | 36  | 1.71%
1892 | 998  | 43.32%  | 1,144  | 49.65% | 162  | 7.03%

## Communities[edit | edit source]

### Cities[edit | edit source]

* Belgrade
* Bozeman (county seat)
* Three Forks

### Towns[edit | edit source]

* Manhattan
* West Yellowstone

### Census-designated places[edit | edit source]

* Amsterdam (formerly Amsterdam-Churchill)
* Big Sky
* Bridger
* Churchill (formerly Amsterdam-Churchill)
* Four Corners
* Gallatin Gateway
* Gallatin River Ranch
* Hebgen Lake Estates
* King Arthur Park
* Ponderosa Pines
* Sedan
* Springhill
* Willow Creek

### Unincorporated communities[edit | edit source]

* Hillman
* Logan
* Maudlow

## Notable people[edit | edit source]

* Zales Ecton, (United States Senator) from Montana, lived in Gallatin County.
* Stan Jones (Libertarian politician) from Montana, lives and works in Gallatin County.

## See also[edit | edit source]

* List of lakes in Gallatin County, Montana
* List of mountains in Gallatin County, Montana
* National Register of Historic Places listings in Gallatin County, Montana
* Lost Dakota

## References[edit | edit source]

1. ^ a b "State & County QuickFacts". U.S. Census Bureau. Retrieved February 13, 2022.
2. ^ Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Govt. Print. Off. p. 133.
3. ^ Beyond 50: American States That Might Have Been : NPR
4. ^ "2010 Census Gazetteer Files". US Census Bureau. August 22, 2012. Archived from the original on December 5, 2014. Retrieved November 28, 2014.
5. ^ "Annual Estimates of the Resident Population for Counties: April 1, 2020 to July 1, 2021". Retrieved June 26, 2022.
6. ^ "US Decennial Census". US Census Bureau. Retrieved November 28, 2014.
7. ^ "Historical Census Browser". University of Virginia Library. Retrieved November 28, 2014.
8. ^ "Population of Counties by Decennial Census: 1900 to 1990". US Census Bureau. Retrieved November 28, 2014.
9. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). US Census Bureau. Retrieved November 28, 2014.
10. ^ "U.S. Census website". U.S. Census Bureau. Retrieved January 31, 2008.
11. ^ a b c "Profile of General Population and Housing Characteristics: 2010 Demographic Profile Data". US Census Bureau. Archived from the original on February 13, 2020. Retrieved January 10, 2016.
12. ^ "Population, Housing Units, Area, and Density: 2010 - County". US Census Bureau. Archived from the original on February 13, 2020. Retrieved January 10, 2016.
13. ^ "Selected Social Characteristics in the US – 2006-2010 American Community Survey 5-Year Estimates". US Census Bureau. Archived from the original on February 13, 2020. Retrieved January 10, 2016.
14. ^ "Selected Economic Characteristics – 2006-2010 American Community Survey 5-Year Estimates". US Census Bureau. Archived from the original on February 13, 2020. Retrieved January 10, 2016.
15. ^ a b c d "Explore Census Data". data.census.gov. Retrieved January 23, 2022.
16. ^ Star, Indianapolis. "Gallatin County, Montana Demographics and Housing 2020 Decennial Census". Indianapolis Star. Retrieved January 23, 2022.
17. ^ Cohen, Micah (June 21, 2012). "Presidential Geography: Montana". FiveThirtyEight. Retrieved April 2, 2018.
18. ^ "A wider partisan and ideological gap between younger, older generations". Pew Research Center. March 20, 2017. Retrieved April 2, 2018.
19. ^ Leip, David. "Atlas of US Presidential Elections". uselectionatlas.org. Retrieved April 2, 2018.
20. ^ Burnham, Walter Dean. "Presidential ballots, 1836-1892". archive.org. Retrieved January 16, 2021.`{{cite web}}`: CS1 maint: url-status (link)

## External links[edit | edit source]

* Gallatin County, MT Official Website
* Gallatin County Emergency Management

Places adjacent to Gallatin County, Montana

| Jefferson County | Broadwater County | Meagher County

|
|

| North |
Madison County |

Gallatin County, Montana

| Park County
|  |
Fremont County, Idaho |
| Park County, Wyoming
Teton County, Wyoming

* v
* t
* e

Municipalities and communities of Gallatin County, Montana, United States

County seat: Bozeman

Cities|

* Belgrade
* Bozeman
* Three Forks

Gallatin County map

Towns|

* Manhattan
* West Yellowstone

CDPs|

* Amsterdam
* Big Sky‡
* Bridger
* Churchill
* Four Corners
* Gallatin Gateway
* Gallatin River Ranch
* Hebgen Lake Estates
* King Arthur Park
* Logan
* Ponderosa Pines
* Sedan
* Springhill
* Willow Creek

Other
communities|

* Hillman
* Maudlow

Footnotes|

‡This populated place also has portions in an adjacent county or counties

* United States portal

* v
* t
* e

State of Montana

Helena (capital)

Topics|

* Index
* Congressional delegations
* Geography
* Government
* Governors
* History
* bibliography
* People
* Protected areas
* Sports
* State symbols
* The Last Best Place
* Transportation
* Tourist attractions

Society|

* Crime
* Culture
* Demographics
* Economy
* Education
* Politics
* LGBT rights

Regions|

* Eastern Montana
* The Flathead
* Glacier National Park
* Regional designations of Montana
* Western Montana
* Yellowstone

Largest cities|

* Anaconda
* Belgrade
* Billings
* Bozeman
* Butte
* Columbia Falls
* Dillon
* Glendive
* Great Falls
* Hamilton
* Havre
* Helena
* Kalispell
* Laurel
* Lewistown
* Livingston
* Miles City
* Missoula
* Polson
* Sidney
* Whitefish

Counties|

* Beaverhead
* Big Horn
* Blaine
* Broadwater
* Carbon
* Carter
* Cascade
* Chouteau
* Custer
* Daniels
* Dawson
* Deer Lodge
* Fallon
* Fergus
* Flathead
* Gallatin
* Garfield
* Glacier
* Golden Valley
* Granite
* Hill
* Jefferson
* Judith Basin
* Lake
* Lewis and Clark
* Liberty
* Lincoln
* Madison
* McCone
* Meagher
* Mineral
* Missoula
* Musselshell
* Park
* Petroleum
* Phillips
* Pondera
* Powder River
* Powell
* Prairie
* Ravalli
* Richland
* Roosevelt
* Rosebud
* Sanders
* Sheridan
* Silver Bow
* Stillwater
* Sweet Grass
* Teton
* Toole
* Treasure
* Valley
* Wheatland
* Wibaux
* Yellowstone

Coordinates: 45°34′N 111°10′W﻿ / ﻿45.56°N 111.17°W﻿ / 45.56; -111.17
*[Pop.]: Population
*[%±]: Percent change
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