Sidney, MT ZIP code

The ZIP code for Sidney, Montana is 59270. It is in Richland County.

59270

Population in these ZIPs: 8,571
Avg. median income: $72,600population-weighted
Typical home value: $278,800population-weighted

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Sidney, MT ZIP code list

Sidney, MT ZIP codes
ZIP code	Population	Median income	Typical home value
59270	8,571	$72,630	$278,800

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 Sidney

Crane 7 mi
Fairview 20 mi
Savage 21 mi
Lambert 29 mi
Culbertson 37 mi
Bloomfield 38 mi
Bainville 42 mi
Wibaux 46 mi
Glendive 46 mi
Richey 47 mi
Brockton 55 mi
Froid 55 mi

Frequently asked questions

What is the ZIP code for Sidney, MT?

The ZIP code for Sidney, MT is 59270.

What county is Sidney, Montana in?

Sidney ZIP codes are in Richland County.