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Zip Code 59275 — Westby, MT

59275 is a ZIP Code associated with Westby, MT, located within Sheridan. The postal region supports an estimated population of 436 residents across Data Pending housing units, with a population density of 0.4 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (48.874150, -104.178650)

Data MetricLocal Statistic
Postal / Zip Code59275
Primary CityWestby
State / ProvinceMT
CountySheridan
Total Population436
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density0.4 people/sq mi
TimezoneAmerica/Denver

How 59275 Compares

MetricZIP 59275Sheridan CountyMT State Average
Population4363,7091,117,606
Median IncomeData PendingN/AN/A
Population Density0.4 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 59211Antelope14.7 mi298N/A
Zip 59256Raymond17.1 mi258N/A
Zip 59254Plentywood21.3 mi1,822N/A
Zip 59219Dagmar21.9 mi144N/A
Zip 59247Medicine Lake29.1 mi310N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →