Sweetwater County, Wyoming ZIP Codes

11 ZIP Codes

Zip Code
City
Population ↓
82901Rock Springs27,198
82935Green River12,012
82932Farson997
82934Granger285
82336Wamsutter269
82938McKinnon221
82945Superior196
82943Reliance187
82322Bairoil149
82929Little America19
82942Point Of Rocks9

Overview of ZIP Codes in Sweetwater 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.
11
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2025, there are 11 ZCTAs in Sweetwater County, Wyoming (US Census).

Sources

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

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