Gallatin County, Montana
Population estimates, July 1, 2025, (V2025) 128,740
People
Population
Population estimates, July 1, 2025, (V2025) 128,740
Population estimates, July 1, 2024, (V2024) 126,984
Population estimates base, April 1, 2020, (V2025) 118,957
Population estimates base, April 1, 2020, (V2024) 118,962
Population, percent change - April 1, 2020 (estimates base) to July 1, 2025, (V2025) 8.2%
Population, percent change - April 1, 2020 (estimates base) to July 1, 2024, (V2024) 6.7%
Population, Census, April 1, 2020 118,960
Population, Census, April 1, 2010 89,513
Age and Sex
Persons under 5 years, percent 4.5%
Persons under 18 years, percent 18.2%
Persons 65 years and over, percent 14.3%
Female persons, percent 47.7%
Race and Hispanic Origin
White alone, percent 94.0%
Black alone, percent(a) 0.7%
American Indian and Alaska Native alone, percent(a) 1.2%
Asian alone, percent(a) 1.7%
Native Hawaiian and Other Pacific Islander alone, percent(a) 0.1%
Two or More Races, percent 2.4%
Hispanic or Latino, percent(b) 5.8%
White alone, not Hispanic or Latino, percent 89.1%
Population Characteristics
Veterans, 2020-2024 5,109
Foreign-born persons, percent, 2020-2024 4.1%
Housing
Housing Units, July 1, 2025, (V2025) 63,368
Owner-occupied housing unit rate, 2020-2024 61.1%
Median value of owner-occupied housing units, 2020-2024 $667,600
Median selected monthly owner costs - with a mortgage, 2020-2024 $2,299
Median selected monthly owner costs - without a mortage, 2020-2024 $750
Median gross rent, 2020-2024 $1,694
Building Permits, 2025 1,544
Families & Living Arrangements
Households, 2020-2024 51,215
Persons per household, 2020-2024 2.33
Living in the same house 1 year ago, percent of persons age 1 year+ , 2020-2024 82.2%
Language other than English spoken at home, percent of persons age 5 years+, 2020-2024 5.2%
Computer and Internet Use
Households with a computer, percent, 2020-2024 98.0%
Households with a broadband Internet subscription, percent, 2020-2024 93.3%
Education
High school graduate or higher, percent of persons age 25 years+, 2020-2024 97.2%
Bachelor's degree or higher, percent of persons age 25 years+, 2020-2024 54.3%
Health
With a disability, under age 65 years, percent, 2020-2024 5.8%
Persons without health insurance, under age 65 years, percent 8.9%
Economy
In civilian labor force, total, percent of population age 16 years+, 2020-2024 71.1%
In civilian labor force, female, percent of population age 16 years+, 2020-2024 67.3%
Total accommodation and food services sales, 2022 ($1,000)(c) 807,640
Total health care and social assistance receipts/revenue, 2022 ($1,000)(c) 1,060,295
Total transportation and warehousing receipts/revenue, 2022 ($1,000)(c) 291,710
Total retail sales, 2022 ($1,000)(c) 3,792,631
Total retail sales per capita, 2022(c) $30,356
Transportation
Mean travel time to work (minutes), workers age 16 years+, 2020-2024 18.3
Income & Poverty
Median households income (in 2024 dollars), 2020-2024 $93,528
Per capita income in past 12 months (in 2024 dollars), 2020-2024 $54,482
Persons in poverty, percent 7.1%
Businesses
Businesses
Total employer establishments, 2023 6,828
Total employment, 2023 59,252
Total annual payroll, 2023 ($1,000) 3,524,949
Total employment, percent change, 2022-2023 5.2%
Total nonemployer establishments, 2023 16,883
All employer firms, Reference year 2023 6,012
Male-owned employer firms, Reference year 2023 3,422
Female-owned employer firms, Reference year 2023 1,203
Minority-owned employer firms, Reference year 2023 174
Nonminority-owned employer firms, Reference year 2023 5,283
Veteran-owned employer firms, Reference year 2023 230
Nonveteran-owned employer firms, Reference year 2023 5,108
Geography
Geography
Population per square mile, 2020 45.7
Population per square mile, 2010 34.4
Land area in square miles, 2020 2,605.35
Land area in square miles, 2010 2,602.69
FIPS Code 30031