Postal reference / United States

59087Winnett, Montana

ZIP code 59087 is a United States postal code for Winnett, Montana. Its county association is Petroleum County. The map reference point is at 46.9438, -108.3184.

State / territory
Montana
Recorded place name
Winnett
County association
Petroleum
Estimated coordinate
46.9438, -108.3184
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ZIP prefix
590 · 75 ZIP codes share it
Data source
GeoNames postal reference, snapshot September 26, 2026

GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.

Area

Land area
1,277.229 sq mi (2023 Census Gazetteer)

Figures are for the ZIP Code Tabulation Area (ZCTA) that most closely matches this ZIP code, not an exact match to USPS delivery boundaries. Source: U.S. Census Bureau, 2023 Gazetteer + 2023 ACS 5-Year Estimates, retrieved 2026-09-27. How to read this data.

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Browse the other 403 ZIP codes recorded for Montana, sorted by code with place and county.

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Nearby ZIP code reference points

ZIP codePlaceStateCounty associationMiles
59084TeigenMTPetroleum14.6
59032Grass RangeMTFergus24.6
59058MosbyMTGarfield25.2
59059MusselshellMTMusselshell31.3
59054MelstoneMTMusselshell31.9
59073RoundupMTMusselshell36.0
59441Forest GroveMTFergus36.1
59072RoundupMTMusselshell37.6

Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.

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