Jefferson County, Montana
Total annual payroll, 2023 ($1,000) 90,388
People
Population
Population estimates, July 1, 2025, (V2025) 13,329
Population estimates, July 1, 2024, (V2024) 13,304
Population estimates base, April 1, 2020, (V2025) 12,081
Population estimates base, April 1, 2020, (V2024) 12,082
Population, percent change - April 1, 2020 (estimates base) to July 1, 2025, (V2025) 10.3%
Population, percent change - April 1, 2020 (estimates base) to July 1, 2024, (V2024) 10.1%
Population, Census, April 1, 2020 12,085
Population, Census, April 1, 2010 11,406
Age and Sex
Persons under 5 years, percent 4.4%
Persons under 18 years, percent 19.7%
Persons 65 years and over, percent 24.2%
Female persons, percent 49.1%
Race and Hispanic Origin
White alone, percent 93.7%
Black alone, percent(a) 0.6%
American Indian and Alaska Native alone, percent(a) 1.8%
Asian alone, percent(a) 0.6%
Native Hawaiian and Other Pacific Islander alone, percent(a) 0.1%
Two or More Races, percent 3.1%
Hispanic or Latino, percent(b) 3.4%
White alone, not Hispanic or Latino, percent 90.8%
Population Characteristics
Veterans, 2020-2024 1,067
Foreign-born persons, percent, 2020-2024 1.0%
Housing
Housing Units, July 1, 2025, (V2025) 5,447
Owner-occupied housing unit rate, 2020-2024 84.2%
Median value of owner-occupied housing units, 2020-2024 $446,900
Median selected monthly owner costs - with a mortgage, 2020-2024 $1,916
Median selected monthly owner costs - without a mortage, 2020-2024 $540
Median gross rent, 2020-2024 $925
Building Permits, 2025 20
Families & Living Arrangements
Households, 2020-2024 4,996
Persons per household, 2020-2024 2.50
Living in the same house 1 year ago, percent of persons age 1 year+ , 2020-2024 88.3%
Language other than English spoken at home, percent of persons age 5 years+, 2020-2024 2.3%
Computer and Internet Use
Households with a computer, percent, 2020-2024 96.8%
Households with a broadband Internet subscription, percent, 2020-2024 91.4%
Education
High school graduate or higher, percent of persons age 25 years+, 2020-2024 93.9%
Bachelor's degree or higher, percent of persons age 25 years+, 2020-2024 32.2%
Health
With a disability, under age 65 years, percent, 2020-2024 12.6%
Persons without health insurance, under age 65 years, percent 9.9%
Economy
In civilian labor force, total, percent of population age 16 years+, 2020-2024 60.8%
In civilian labor force, female, percent of population age 16 years+, 2020-2024 56.5%
Total accommodation and food services sales, 2022 ($1,000)(c) 15,027
Total health care and social assistance receipts/revenue, 2022 ($1,000)(c) D
Total transportation and warehousing receipts/revenue, 2022 ($1,000)(c) 11,590
Total retail sales, 2022 ($1,000)(c) 65,152
Total retail sales per capita, 2022(c) $5,078
Transportation
Mean travel time to work (minutes), workers age 16 years+, 2020-2024 24.4
Income & Poverty
Median households income (in 2024 dollars), 2020-2024 $95,490
Per capita income in past 12 months (in 2024 dollars), 2020-2024 $49,303
Persons in poverty, percent 7.4%
Businesses
Businesses
Total employer establishments, 2023 342
Total employment, 2023 1,959
Total annual payroll, 2023 ($1,000) 90,388
Total employment, percent change, 2022-2023 8.5%
Total nonemployer establishments, 2023 1,358
All employer firms, Reference year 2023 211
Male-owned employer firms, Reference year 2023 81
Female-owned employer firms, Reference year 2023 S
Minority-owned employer firms, Reference year 2023 S
Nonminority-owned employer firms, Reference year 2023 188
Veteran-owned employer firms, Reference year 2023 S
Nonveteran-owned employer firms, Reference year 2023 182
Geography
Geography
Population per square mile, 2020 7.3
Population per square mile, 2010 6.9
Land area in square miles, 2020 1,657.00
Land area in square miles, 2010 1,656.26
FIPS Code 30043