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COUNTY · 2020 ACS

Gallatin County

Montana · 118,960 residents · 2,605 sq mi
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The short version

With 118,960 people, Gallatin County is a county in Montana. The population has risen by half since 2000, adding 51,129 people. This is an unusually credentialed place: 52% of adults have a four-year degree. This skews young, with a median age of 33.4. The foreign-born share is 3%. The typical home is worth $388,000, having more than doubled since 2000.

At a glance
Wealthier
above the US median
US median: $66,278
Younger
median age 33.4
US median: 38.8
More educated
52% hold a bachelor's degree
US average: 33%
Less affordable
home values up 84%, inflation adjusted
US median home: $265,253
Section 01

Population & growth

Total population
118,960
+75%since 2000
from 67,831 in 2000
1990 – 2025
Median age
33.4
+9%since 2000
from 30.7 in 2000
US average: 38.8
Land area
2,605 sq mi
Population, 1990 – 2024
43K65K87K109K131K19902000201020202024Gallatin County
2024124K
1990201020202024
Age distribution, 2020
Under 55.2%(6,194)
US avg: 5.6%
5 to 95.7%(6,789)
US avg: 6.1%
10 to 145.6%(6,720)
US avg: 6.5%
15 to 197.7%(9,209)
US avg: 6.6%
20 to 2411.9%(14,206)
US avg: 6.7%
25 to 3416.2%(19,224)
US avg: 13.5%
35 to 4413.7%(16,288)
US avg: 12.7%
45 to 5410.2%(12,116)
US avg: 12.3%
55 to 6410.5%(12,507)
US avg: 13.1%
65 to 748.5%(10,099)
US avg: 10%
75 to 843.5%(4,169)
US avg: 4.9%
85 and over1.2%(1,439)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$70,124
+22%inflation adjusted, since 2000
from $38,120 in 2000
US average: $66,278
1990 – 2024
Per capita income
$38,885
+104%since 2000
from $19,074 in 2000
US average: $35,364
Households earning $100K+
47.0%
+18.9 ptssince 2009
from 28.1% in 2009
US average: 43.9%
Poverty rate
11.0%
−1.8 ptssince 2000
from 12.8% in 2000
US average: 12.8%
Workforce by industry, 2020
Information12.7%
US avg: 11.1%
Wholesale trade11%
US avg: 6.7%
Retail trade7.6%
US avg: 10%
Other services5.6%
US avg: 6.6%
Agriculture, forestry, fishing3.4%
US avg: 1.7%
Public administration3.2%
US avg: 4.7%
Finance & insurance3%
US avg: 5.5%
Construction2.9%
US avg: 1.2%
Professional, scientific, technical2.6%
US avg: 4.7%
Transportation & warehousing1.8%
US avg: 2.5%
Arts, entertainment, food1%
US avg: 2%
Manufacturing0.5%
US avg: 0.5%
Education & health services0.3%
US avg: 0.8%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

Median home value
$388,000
+84%inflation adjusted, since 2000
from $140,000 in 2000
US average: $265,253
1990 – 2024
Median gross rent
$1,131
+36%inflation adjusted, since 2000
from $555 in 2000
US average: $1,124
Owner-occupied
59.9%
−2.5 ptssince 2000
from 62.4% in 2000
40.1% rent
Persons per household
2.36 people
−6%since 2009
from 2.52 people in 2009
US average: 2.61
Afford Score
5.5
+3%since 2009
from 5.4 in 2009
2009 – 2024
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Section 04

Race & ethnicity

2000
White, non-Hispanic95.3%(64,672)
Black0.2%(148)
Hispanic / Latino1.5%(1,047)
Asian0.9%(599)
Other0%
2020
White, non-Hispanic87.4%(104,003)
Black0.4%(493)
Hispanic / Latino5%(5,895)
Asian1.2%(1,389)
Other3.4%(4,006)
Segregation Score
22
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins

Detailed origins & ancestry

Hispanic origin
Mexican2.5%(2,783)
Puerto Rican0.3%(305)
Cuban0.2%(199)
Dominican0.1%(110)
Venezuelan0.1%(98)
Spaniard0.1%(90)
Honduran0.1%(56)
Peruvian0%(48)
Chilean0%(47)
+ 5 more hispanic origin groups with data
Asian origin
Chinese0.3%(353)
Asian Indian0.2%(214)
Filipino0.2%(212)
Thai0.1%(142)
Korean0.1%(117)
Taiwanese0.1%(70)
Nepalese0.1%(66)
Vietnamese0.1%(57)
Japanese0%(54)
Pakistani0%(36)
Bhutanese0%(35)
+ 3 more asian origin groups with data
Pacific Islander origin
Samoan0.1%(119)
Tongan0.1%(114)
Fijian0%(18)
Ancestry
German24.5%(27,311)
Irish13.8%(15,423)
English13.6%(15,179)
Norwegian7.8%(8,635)
French4%(4,457)
Italian3.9%(4,360)
American3.8%(4,195)
Dutch3.5%(3,864)
Scottish3.4%(3,790)
Swedish2.8%(3,111)
Polish2.1%(2,304)
Scotch-Irish1.6%(1,737)
+ 42 more ancestry groups with data
Danish1.2%(1,331)
Russian1.2%(1,287)
Welsh1%(1,169)
British0.9%(978)
Czech0.9%(961)
Swiss0.8%(850)
Austrian0.6%(713)
Finnish0.5%(530)
Ukrainian0.4%(467)
Hungarian0.4%(397)
Portuguese0.3%(370)
Lithuanian0.3%(335)
Greek0.3%(314)
Canadian0.3%(305)
Belgian0.2%(210)
Slovak0.2%(185)
Slovene0.1%(165)
Ethiopian0.1%(131)
Croatian0.1%(107)
Armenian0.1%(101)
West Indian0.1%(94)
Arab0.1%(87)
Brazilian0.1%(86)
Romanian0.1%(85)
Lebanese0.1%(81)
Turkish0.1%(73)
Israeli0.1%(67)
Iranian0.1%(63)
Serbian0.1%(61)
Iraqi0%(42)
Haitian0%(42)
Latvian0%(28)
Bulgarian0%(23)
Syrian0%(11)
Section 05

Education

Bachelor's degree or higher
51.6%
+10.6 ptssince 2000
from 41.0% in 2000
US average: 32.9%
High school or higher
97.0%
+3.7 ptssince 2000
from 93.3% in 2000
US average: 88.5%
Graduate degree
18.4%
+5.5 ptssince 2000
from 12.9% in 2000
US average: 12.7%
Section 06

Commute & transportation

Average commute
18.3 min
+58%since 2000
from 11.6 min in 2000
US average: 26.9
Drive alone to work
71.9%
+1.7 ptssince 2009
from 70.2% in 2009
US average: 75.1%
No vehicle available
2.8%
−0.8 ptssince 2009
from 3.7% in 2009
US average: 8.4%
Section 07

Work & employment

Unemployment rate
2.4%
−3.4 ptssince 2011
from 5.8% in 2011
US average: 5.4%
Labor force participation
71.8%
Unchangedsince 2011
from 71.8% in 2011
US average: 63.4%
Women 20-64 in the labor force
79.5%
US average: 73.3%
Management & professional
42.7%
+8.8 ptssince 2009
from 33.8% in 2009
US average: 39.3%
Section 08

People & community

Male
51.9%
+0.2 ptssince 2009
from 51.7% in 2009
Female
48.1%
−0.2 ptssince 2009
from 48.3% in 2009
Foreign born
3.2%
+0.3 ptssince 2009
from 2.9% in 2009
US average: 13.5%
Uninsured
7.4%
−6.4 ptssince 2013
from 13.8% in 2013
US average: 8.8%
Computer in household
95.7%
US average: 91.9%
Same house as last year
79.4%
US average: 86.2%
Marital status (2024)
Men 15+
Never married43.5%(23,952)
Married48.5%(26,717)
Widowed1.5%(800)
Divorced6.5%(3,595)
Women 15+
Never married34.4%(17,105)
Married51.4%(25,610)
Widowed5.1%(2,536)
Divorced9.1%(4,526)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09

Health coverage

Uninsured
7.4%
−6.4 ptssince 2013
from 13.8% in 2013
US average: 8.8%
Employer-based
58.0%
US average: 55.4%
Direct-purchase
21.8%
US average: 13.7%
Medicare
13.1%
US average: 17.6%
Medicaid
13.0%
US average: 20.0%
VA health care
2.4%
US average: 2.3%
Any private
77.6%
US average: 68.1%
Any public
25.5%
US average: 35.2%

Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.

Section 09 · Service history

Veterans

Veterans by period of service, 2020
Gulf War (2001 or later)32%(1,868)
US avg: 20.6%
Gulf War (1990s)18.7%(1,092)
US avg: 21.4%
Vietnam era35.2%(2,056)
US avg: 35.2%
Korean War5.3%(309)
US avg: 7.6%
World War II1.5%(89)
US avg: 2.9%

Share of the 5,845 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.

BAR + DOT: THIS PLACE · TICK: US AVERAGE
Drill deeper

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Head to head

Compare Gallatin County to nearby counties

GALLATIN COUNTY VS
Park County
Income$70,047same
Home value$467,500+20%
Population18,214−86%
SEE FULL COMPARISON →
GALLATIN COUNTY VS
Madison County
Income$75,250+7%
Home value$470,100+21%
Population10,026−92%
SEE FULL COMPARISON →
GALLATIN COUNTY VS
Broadwater County
Income$70,374same
Home value$426,600+10%
Population8,493−93%
SEE FULL COMPARISON →
GALLATIN COUNTY VS
Jefferson County
Income$95,490+36%
Home value$446,900+15%
Population13,329−90%
SEE FULL COMPARISON →
Frequently asked

How many people live in Gallatin County, Montana?

Gallatin County, Montana has about 118,960 residents according to the 2020 American Community Survey.

What is the median household income in Gallatin County, Montana?

The typical household in Gallatin County, Montana earns about $70,124 a year. Half of households make more than that, and half make less.

Is Gallatin County, Montana expensive?

In Gallatin County, Montana, the median home is worth about $388,000, and the typical rent is about $1,131 a month.

How educated are people in Gallatin County, Montana?

About 51.6% of adults age 25 and over in Gallatin County, Montana hold a bachelor's degree or higher.

What is the poverty rate in Gallatin County, Montana?

About 11.0% of people in Gallatin County, Montana live below the federal poverty line.

Has Gallatin County, Montana grown since 1990?

Yes, Gallatin County, Montana has grown since 1990. The population has added about 68,497 residents, a change of about 136 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →