Petroleum County, MT
Demographic and economic profile of Petroleum County, MT, sourced from the US Census Bureau (American Community Survey) via Data USA.
AI Overview
Petroleum County is a sparsely populated rural county of just 401 residents, with its economy reflecting the agricultural and extractive-industry character common to central Montana's high plains. The labor force is extremely tight—unemployment sits at 0.9%—with 64.1% labor force participation, median worker earnings of $37,250, and 27.1% of adults holding a bachelor's degree or higher. The county has shed 7.2% of its population over the past five years, skews older at a median age of 51.6, and offers low housing costs with a median home value of $173,700 and median gross rent of $769/month.
Claude Sonnet 4.6 · generated Jul 6, 2026 · derived from cached Census, BEA & ACS data on this page
Population Growth (5-year)
-7.2% since 2018
Petroleum County lost population at this rate over the prior 5-year ACS5 window.
Demographics
Race & Ethnicity
- White Alone442 (98.9%)
- Asian Alone3 (0.7%)
- American Indian & Alaska Native Alone2 (0.4%)
- Black or African American Alone0 (0.0%)
- Native Hawaiian & Other Pacific Islander Alone0 (0.0%)
- Some Other Race Alone0 (0.0%)
Top Languages Spoken at Home
Not yet cached for this geography.
Economy
Cost of Living Index
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Not yet cached
Top Industries
- 1.Agriculture, Forestry, Fishing & Hunting, & Mining84
- 2.Educational Services, & Health Care & Social Assistance46
- 3.Construction (Group)24
- 4.Retail Trade (Group)24
- 5.Transportation & Warehousing, & Utilities23
Top Occupations
- 1.Management, Business, Science, & Arts Occupations92
- 2.Natural Resources, Construction, & Maintenance Occupations67
- 3.Sales & Office Occupations41
- 4.Production, Transportation, & Material Moving Occupations18
- 5.Service Occupations17
Specialized Industries (Location Quotient)
Not yet cached for this geography.
Housing
Education
Workforce
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More on FDI Connect
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Data: US Census Bureau American Community Survey, served via Data USA and the Census Bureau API. See each metric tile for the specific dataset.