County · GEOID 30069
Petroleum County, MT ZIP codes
4 ZIP/ZCTAs intersecting this county.
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: County Petroleum County (GEOID 30069). Methodology
Combined population of ZIP/ZCTAs intersecting this county: 5,363 (4 ZIPs).
Combined population of ZIP/ZCTAs intersecting this county. Each intersecting ZIP contributes its full ZCTA population; overlap percents are descriptive only. This is not the Census county ACS headline above. Methodology
ZIP/ZCTA overlap with Petroleum County
Population overlap
Share of each ZIP/ZCTA’s population located within Petroleum County, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
ZIP codes intersecting Petroleum County
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 59032 | Grass Range | Fergus County | 380 | $26,750 |
| 59058 | Mosby | Garfield County | 45 | — |
| 59072 | Roundup | Musselshell County | 4,590 | $59,785 |
| 59087 | Winnett | Petroleum County | 348 | $60,625 |
USPS associates these ZIPs with Petroleum County
These codes list Petroleum County as a primary or acceptable city. They are not used for the ACS headline.
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 59084 | Teigen | Petroleum County | — | — |