Westby, MT ZIP code

The ZIP code for Westby, Montana is 59275. It is in Sheridan County.

59275

Population in these ZIPs: 436
Avg. median income: $49,100population-weighted
Typical home value: $174,400population-weighted

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Westby, MT ZIP code list

Westby, MT ZIP codes
ZIP code	Population	Median income	Typical home value
59275	436	$49,141	$174,400

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Cities near Westby

Antelope 15 mi
Raymond 18 mi
Dagmar 21 mi
Plentywood 24 mi
Medicine Lake 30 mi
Reserve 30 mi
Outlook 31 mi
Homestead 35 mi
Redstone 37 mi
Froid 40 mi
Bainville 45 mi
Flaxville 47 mi

Frequently asked questions

What is the ZIP code for Westby, MT?

The ZIP code for Westby, MT is 59275.

What county is Westby, Montana in?

Westby ZIP codes are in Sheridan County.