What are the South Padre Island, Texas Zip Codes for 2020, 2019Primary Zip Codes for South Padre IslandZip CodePrimary CitySecondary City78597South Padre IslandSouth Padre Island, Port Isabel, S Padre Isl E, S Padre IsleCities sharing Zip Codes with South Padre IslandZip CodePrimary CitySecondary CityMore Information78597South Padre IslandS Padre Isl E78597South Padre IslandS Padre Isle78597South Padre IslandPort Isabel Port Isabel population stats Advertisements