What are the Green Mtn, North Carolina Zip Codes for 2020, 2019Primary Zip Codes for Green MtnZip CodePrimary CitySecondary City28740Green MountainGreen Mtn, Double Island, Green Mt, Greenmountain, Grn Mountain, Lower Pig Pen, Pleasant Gap, Relief, Upper Pig Pen,Cities sharing Zip Codes with Green MtnZip CodePrimary CitySecondary CityMore Information28740Green MountainGreen Mtn28740Green MountainDouble Island28740Green MountainGreen Mt28740Green MountainGreenmountain28740Green MountainGrn Mountain28740Green MountainLower Pig Pen28740Green MountainPleasant Gap28740Green MountainRelief28740Green MountainUpper Pig PenAdvertisements