There are 5 zip codes in Johnson County, Tennessee. The most populated is 37683, located in Mountain City. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
3768313,686Mountain City
376403,517Butler
37688945Shady Valley
37691555Trade
37680454Laurel Bloomery

Zip Codes in Johnson County, Tennessee by Population (2024)