Petroleum County, Montana
Population estimates, July 1, 2025, (V2025) 548
People
Population
Population estimates, July 1, 2025, (V2025) 548
Population estimates, July 1, 2024, (V2024) 525
Population estimates base, April 1, 2020, (V2025) 498
Population estimates base, April 1, 2020, (V2024) 497
Population, percent change - April 1, 2020 (estimates base) to July 1, 2025, (V2025) 10.0%
Population, percent change - April 1, 2020 (estimates base) to July 1, 2024, (V2024) 5.6%
Population, Census, April 1, 2020 496
Population, Census, April 1, 2010 494
Age and Sex
Persons under 5 years, percent 4.6%
Persons under 18 years, percent 16.0%
Persons 65 years and over, percent 32.0%
Female persons, percent 44.4%
Race and Hispanic Origin
White alone, percent 96.2%
Black alone, percent(a) 0.2%
American Indian and Alaska Native alone, percent(a) 2.1%
Asian alone, percent(a) 0.0%
Native Hawaiian and Other Pacific Islander alone, percent(a) 0.0%
Two or More Races, percent 1.5%
Hispanic or Latino, percent(b) 2.1%
White alone, not Hispanic or Latino, percent 94.1%
Population Characteristics
Veterans, 2020-2024 62
Foreign-born persons, percent, 2020-2024 0.9%
Housing
Housing Units, July 1, 2025, (V2025) 333
Owner-occupied housing unit rate, 2020-2024 72.9%
Median value of owner-occupied housing units, 2020-2024 $201,400
Median selected monthly owner costs - with a mortgage, 2020-2024 $1,635
Median selected monthly owner costs - without a mortage, 2020-2024 $503
Median gross rent, 2020-2024 $800
Building Permits, 2025 NA
Families & Living Arrangements
Households, 2020-2024 221
Persons per household, 2020-2024 2.02
Living in the same house 1 year ago, percent of persons age 1 year+ , 2020-2024 87.8%
Language other than English spoken at home, percent of persons age 5 years+, 2020-2024 0.0%
Computer and Internet Use
Households with a computer, percent, 2020-2024 86.0%
Households with a broadband Internet subscription, percent, 2020-2024 84.2%
Education
High school graduate or higher, percent of persons age 25 years+, 2020-2024 98.9%
Bachelor's degree or higher, percent of persons age 25 years+, 2020-2024 30.8%
Health
With a disability, under age 65 years, percent, 2020-2024 1.2%
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 61.7%
In civilian labor force, female, percent of population age 16 years+, 2020-2024 60.1%
Total accommodation and food services sales, 2022 ($1,000)(c) NA
Total health care and social assistance receipts/revenue, 2022 ($1,000)(c) NA
Total transportation and warehousing receipts/revenue, 2022 ($1,000)(c) NA
Total retail sales, 2022 ($1,000)(c) NA
Total retail sales per capita, 2022(c) NA
Transportation
Mean travel time to work (minutes), workers age 16 years+, 2020-2024 16.2
Income & Poverty
Median households income (in 2024 dollars), 2020-2024 $60,208
Per capita income in past 12 months (in 2024 dollars), 2020-2024 $39,919
Persons in poverty, percent 14.5%
Businesses
Businesses
Total employer establishments, 2023 11
Total employment, 2023 24
Total annual payroll, 2023 ($1,000) 507
Total employment, percent change, 2022-2023 33.3%
Total nonemployer establishments, 2023 56
All employer firms, Reference year 2023 7
Male-owned employer firms, Reference year 2023 S
Female-owned employer firms, Reference year 2023 S
Minority-owned employer firms, Reference year 2023 S
Nonminority-owned employer firms, Reference year 2023 S
Veteran-owned employer firms, Reference year 2023 S
Nonveteran-owned employer firms, Reference year 2023 S
Geography
Geography
Population per square mile, 2020 0.3
Population per square mile, 2010 0.3
Land area in square miles, 2020 1,655.63
Land area in square miles, 2010 1,654.87
FIPS Code 30069