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ZIP codes in Petroleum County, Montana

Petroleum County, Montana has 2 ZIP codes in this list, from 59084 to 59087. They cover 2 places, among them Teigen and Winnett.

ZIP codePlaceLand area (sq mi)Map point
59084Teigenno area47.037, -108.597
59087Winnett1,27746.944, -108.318

The ZIP code areas of Petroleum County add up to about 1,277 square miles of land (3,308 sq km) as the Census Bureau draws them. The largest is 59087 (Winnett), with 1,277 square miles.

Using these codes

Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.

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