Sheridan County, Montana ZIP Codes

10 ZIP Codes

Zip Code
City
Population ↓
59254Plentywood1,822
59275Westby436
59247Medicine Lake310
59211Antelope298
59256Raymond258
59258Reserve184
59219Dagmar144
59257Redstone132
59252Outlook70
59242Homestead55

Overview of ZIP Codes in Sheridan County

ZCTAs are geographic areas created by the US Census Bureau to approximate the delivery areas of ZIP Codes for statistical analysis. While ZCTAs use the same five-digit codes as ZIP Codes, they represent defined geographic areas that may not exactly match the mail delivery routes of ZIP Codes.
10
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2025, there are 10 ZCTAs in Sheridan County, Montana (US Census).

Sources

  1. US Census: 2025 Gazetteer Files
  2. US Census: ZIP Code Tabulation Areas (ZCTAs)

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