Gallatin County, Montana Population 2024

128,469

Gallatin County, Montana's estimated 2024 population is 128,469 with a growth rate of 1.43% in the past year according to the most recent United States census data. Gallatin County, Montana is the 2nd largest county in Montana. The 2010 population was 89,662 and has seen a growth of 43.28% since that time.

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
2029137,4991,8061.33%
2028135,6931,8061.35%
2027133,8871,8061.37%
2026132,0811,8061.39%
2025130,2751,8061.41%
2024128,4691,8061.43%
2023126,6631,8061.45%
2022124,8571,8061.47%
2021123,0513,4662.9%
2020119,5855,1134.47%
2019114,4722,5942.32%
2018111,8783,0282.78%
2017108,8503,8513.67%
2016104,9993,9563.92%
2015101,0433,4143.5%
201497,6292,7442.89%
201394,8852,2582.44%
201292,6271,2141.33%
201191,4131,7511.95%
201089,66200%
199050,4637,59817.73%
198042,86510,36031.87%
197032,5056,46024.8%
196026,0454,14318.92%
195021,9023,63319.89%
194018,2692,14513.3%
193016,1242601.64%
192015,8641,78512.68%
191014,0794,52647.38%
19009,5533,30752.95%
18906,2462,60371.45%
18803,6432,065130.86%
18701,578-135,921-98.85%
showing: 33 rows
2024 Growth Rate
1.43% (1,806)
County Website
Gallatin County
State
Montana
County Seat
2020 Population
119,585
Area
2605 mi²
Density
49 people/mi²
Growth Since 2020
7.43% (8,884)
Founded
1865

Gallatin County, Montana Population 2024

Population by Race

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Race
Population
Percentage (of total)
White109,20791.25%
Two or more races5,7254.78%
Asian1,6731.4%
Other race1,6271.36%
Native American9250.77%
Black or African American5250.44%
Native Hawaiian or Pacific Islander30%

White

Two or more races

Asian

Other race

Native American

Black or African American

Native Hawaiian or Pacific Islander

Gallatin County, Montana Population by Race

Gallatin County, Montana Population Pyramid 2024

Gallatin County, Montana Median Age

33.5

Total

33

Male

34

Female

Gallatin County, Montana Adults

There are 96,710 adults, (15,582 of whom are seniors) in Gallatin County, Montana.

Gallatin County, Montana Age Dependency

47.5

Age Dependency Ratio

19.2

Old Age Dependency Ratio

28.3

Child Dependency Ratio

Gallatin County, Montana Sex Ratio

Female57,15147.75%
Male62,53452.25%

Gallatin County, Montana Population by Age

Gallatin County, Montana Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All47,8742.461.438.6
Married22,623380.719.3
Non Family20,8421.6142.357.7
Female2,8823.3149.950.1
Male1,5272.755743

2.95

Average Family Size

2.4

Average Household Size

61.4%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Gallatin County, Montana Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Gallatin County, Montana Educational Attainment by Sex (over 25)

Gallatin County, Montana Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among white people with a rate of 98%.

The highest rate of bachelors degrees is among asian people with a rate of 73.02%.

Gallatin County, Montana Educational Attainment by Race

All

Male

Female

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$48,378

Average Earnings

$59,212

Average Male

$38,610

Average Female

Gallatin County, Montana Earnings by Educational Attainment

Gallatin County, Montana Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Gallatin County, Montana Language

95.66% of Gallatin County, Montana residents speak only English, while 4.34% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.89% of the population.

Gallatin County, Montana Language

Gallatin County, Montana Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White103,60210,83210.46%
Hispanic4,90765013.25%
Multiple5,5214878.82%
Asian1,61026016.15%
Other1,61023914.84%
Black48414229.34%
Native828273.26%

10.6%

Overall Poverty Rate

10.13%

Male Poverty Rate

11.12%

Female Poverty Rate

Poverty in Gallatin County, Montana

The race most likely to be in poverty in Gallatin County, Montana is Black, with 29.34% below the poverty level.

The race least likely to be in poverty in Gallatin County, Montana is Native, with 3.26% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.72%. Among those working part-time, it was 19.89%, and for those that did not work, the poverty rate was 16.31%.

Gallatin County, Montana Poverty

rate

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Rate
Poverty
Less Than 9th Grade18.5%
High School8.92%
Some College7.01%
Bachelors or Greater3.6%

Gallatin County, Montana Poverty Rate by Education

rate

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Rate
Poverty
Male Unemployed56.4%
Female Unemployed13.26%
Female Employed10.5%
Male Employed6.26%

Gallatin County, Montana Poverty Rate by Employment Status and Sex

Gallatin County, Montana Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Gallatin County, Montana Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

47.9%

Overall Marriage Rate

46.1%

Male Marriage Rate

49.9%

Female Marriage Rate

Gallatin County, Montana Married by Age and Sex

male

female

Gallatin County, Montana Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.

Gallatin County, Montana Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Gallatin County, Montana Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

5,615

Number of Veterans

5,194

Male Veterans

421

Female Veterans

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Gallatin County, Montana Veterans by War

count

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Gallatin County, Montana Veterans by Age

count

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Gallatin County, Montana Veterans by Race

Gallatin County, Montana Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

5.9%

Veteran Poverty Rate

24.95%

Veteran Disability Rate

Gallatin County, Montana Veterans by Education

LaborForceParticipation

71.1%

Labor Force Participation

69.5%

Employment Rate

2.1%

Unemployment Rate

Gallatin County, Montana Employment by Age

LaborForceParticipation

Gallatin County, Montana Employment by Race

LaborForceParticipation

Gallatin County, Montana Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

36.93%

Born in Gallatin County, Montana

96.29%

Native Born

3.71%

Foreign Born

1.89%

Non Citizen

1.82%

Naturalized

Place of Birth

96.29% of Gallatin County, Montana residents were born in the United States, with 36.93% having been born in Montana. 1.89% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Gallatin County, Montana Place of Birth

Sources