County · Montana · United States
Petroleum County ZIP codes
1 ZIP codes · 1 cities · FIPS 30069
Key facts
- State
- Montana (MT)
- FIPS code
- 30069
- Population
- 401
- Median household income
- $59,318
- Median age
- 51.5
- Land area
- 1,655.6 sq mi (4,288.1 km²)
- Population density
- 0 / sq mi
- Area codes
- 406
Cities and ZIP codes in Petroleum County (1)
About this page
County figures are Census county-level values (ACS 5-year); the ZIP list shows the ZIPs whose primary county this is — a ZIP on a border can also serve neighbouring counties.
Sources: U.S. Census Bureau (2020 county relationship file, ACS 5-year) · GeoNames. Methodology.