What are the South Mtn, Texas Zip Codes for 2020, 2019Primary Zip Codes for South MtnZip CodePrimary CitySecondary City76528GatesvilleSouth Mtn, Arnett, Ater, Fort Gates, Levita, Mountain, Pidcoke, South Mountain, Izoro, Leon Junction,Cities sharing Zip Codes with South MtnZip CodePrimary CitySecondary CityMore Information76528GatesvilleIzoro76528GatesvilleLeon Junction76528GatesvilleSouth Mtn76528GatesvilleArnett76528GatesvilleAter76528GatesvilleFort Gates76528GatesvilleLevita76528GatesvilleMountain76528GatesvillePidcoke76528GatesvilleSouth Mountain South Mountain population stats Advertisements