There are 3 zip codes in Union County, Tennessee. The most populated is 37807, located in Maynardville. * 2024 populations estimated based on the latest ACS 5-year data.
Zip Code | City | Population |
---|---|---|
37807 | Maynardville | 11,008 |
37779 | Luttrell | 3,376 |
37866 | Sharps Chapel | 2,090 |