Petroleum   County MT United States

County FIPS 30069
Largest City Winnett
State Montana
Latitude 47.1175
Longitude -108.2502
Population 447
Density 0.26 people per square mile
Time Zone America/Denver
  • All demographic data comes from the 2024 American Community Survey (5-year study).
  • Learn more about each field.
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Household Income

Median household: $60,208
Median individual: $34,551

Race

Mode: 98.9% White

Gender

 55.3% male 

Rent

  $800 / month  

Age

Median: 51.6 years old

Education

With at least college degree: 30.8%
With STEM degree: 30.9%

Marital Status

 68.0% married 

Never married: 9.1%

Labor Force Participation

 61.7% working 

Unemployed: 0.0%

Average Family Size

 2.54 people 

Commute Time

 16.2 minutes 

Health Care

 6.7% uninsured 

Poverty

 8.1%

All data comes from the SimpleMaps US Counties Database, 2026.

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