There are 10 zip codes in Carbon County, Montana. The most populated is 59068, located in Red Lodge. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
590683,514Red Lodge
590412,080Joliet
590141,516Bridger
590701,407Roberts
59029780Fromberg
59008420Belfry
59013141Boyd
59007135Bearcreek
59026118Edgar
59071113Roscoe

Zip Codes in Carbon County, Montana by Population (2024)