Gallatin County, Montana Population 2023

127,795

Gallatin County, Montana's estimated 2023 population is 127,795 with a growth rate of 2.36% 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 89,513 and has seen a growth of 42.77% since that time.

Note: data after 2020 is projected based on recent growth

Gallatin County, Montana Population 2023

Population by Race

White

Two or more races

Asian

Native American

Other race

Black or African American

Native Hawaiian or Pacific Islander

Gallatin County, Montana Population by Race

Gallatin County, Montana Population Pyramid 2023

Gallatin County, Montana Median Age

33.4

Total

32.4

Male

34.1

Female

Gallatin County, Montana Adults

There are 89,310 adults, (13,940 of whom are seniors) in Gallatin County, Montana.

Gallatin County, Montana Age Dependency

47.8

Age Dependency Ratio

18.5

Old Age Dependency Ratio

29.3

Child Dependency Ratio

Gallatin County, Montana Sex Ratio

Female53,60548.12%
Male57,79651.88%

Gallatin County, Montana Population by Age

Gallatin County, Montana Renter vs Owner Occupied by Household Type

2.9

Average Family Size

2.36

Average Household Size

61.1%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Gallatin County, Montana Households and Families

Male

Female

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

The highest rate of high school graduation is among islander people with a rate of 100%.

The highest rate of bachelors degrees is among asian people with a rate of 50.52%.

Gallatin County, Montana Educational Attainment by Race

All

Male

Female

$41,809

Average Earnings

$50,442

Average Male

$35,459

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

95.99% of Gallatin County, Montana residents speak only English, while 4.01% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.61% of the population.

Gallatin County, Montana Language

Gallatin County, Montana Poverty by Race

rate

12.76%

Overall Poverty Rate

10.6%

Male Poverty Rate

11.46%

Female Poverty Rate

Poverty in Gallatin County, Montana

The race most likely to be in poverty in Gallatin County, Montana is Native, with 37.2% below the poverty level.

The race least likely to be in poverty in Gallatin County, Montana is White, with 11.97% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.69%. Among those working part-time, it was 21.77%, and for those that did not work, the poverty rate was 15.68%.

Gallatin County, Montana Poverty

Gallatin County, Montana Poverty Rate by Education

Gallatin County, Montana Poverty Rate by Employment Status and Sex

Gallatin County, Montana Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

mean

median

Income by Household Type

Gallatin County, Montana Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

50.2%

Overall Marriage Rate

48.3%

Male Marriage Rate

52.3%

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 45-54.

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

5,845

Number of Veterans

5,387

Male Veterans

458

Female Veterans

Gallatin County, Montana Veterans by War

Gallatin County, Montana Veterans by Age

count

Gallatin County, Montana Veterans by Race

Gallatin County, Montana Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

5.65%

Veteran Poverty Rate

26.19%

Veteran Disability Rate

Gallatin County, Montana Veterans by Education

LaborForceParticipation

71.8%

Labor Force Participation

70%

Employment Rate

2.4%

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

36.64%

Born in Gallatin County, Montana

90.64%

Native Born

3.01%

Foreign Born

1.52%

Non Citizen

1.49%

Naturalized

Place of Birth

90.64% of Gallatin County, Montana residents were born in the United States, with 36.64% having been born in Montana. 1.52% 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