Valley County, Montana ZIP Codes

Zip Code
City
Population ↓
59230Glasgow4,606
59248Nashua1,023
59225Frazer639
59241Hinsdale439
59231Saint Marie306
59250Opheim242
59260Richland76
59244Larslan63
59240Glentana22
59273Vandalia15

Overview of ZIP Codes in Valley 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 Valley County, Montana (US Census).

Sources

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

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