County ProfileMT
Petroleum County
Population: 496 · 1 ZIP code
Demographics
Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.
People
Total population
496
People
Median age
51.6
Housing
Total households
221
Income
Median household income
$60,208
Housing
Total housing units
311
Employment
Employment rate
61.7%
Education
Bachelor’s degree or higher
30.8%
Healthcare
Insured population
93.3%
County details
Local time 00:50:03(MT)| Name | Petroleum |
|---|---|
| Total ZIP codes | 1total |
| ZIP codes (by type) | 1 Standard |
| Area code | 406 |
| Timezone | Mountain Time (MT) |
| Coordinates | 47.1419168, -108.2265753 |
| Land area | 1,655.6 sq miles(4,288 km²) |
Map of Petroleum county, Montana with ZIP codes
Cities and Communities in Petroleum County
Compare the largest cities in Petroleum County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.
| City | Population | Median incomeHousehold | ZIP codes |
|---|---|---|---|
| Winnett | 188 | $49,583 | 1ZIPs |
— Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.
ZIP Codes in Petroleum County
Review the most populated postal areas across Petroleum County. Use the ranking below to compare resident density and demographic scales between the county's major zones.
Data Sources & Citations
The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:
- United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
- United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS