There are 11 zip codes in Sweetwater County, Wyoming. The most populated is 82901, located in Rock Springs. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
8290127,713Rock Springs
8293512,316Green River
82932828Farson
82336251Wamsutter
82945236Superior
82938226Mc Kinnon
82934197Granger
82322162Bairoil
8294268Point Of Rocks
8294361Reliance
8292921Little America
showing: 11 rows

Zip Codes in Sweetwater County, Wyoming by Population (2024)