What are the Research Triangle Pk, North Carolina Zip Codes for 2020, 2019Primary Zip Codes for Research Triangle PkZip CodePrimary CitySecondary City27711DurhamResearch Triangle Pk, E P A, Research Triangle Park, RtpCities sharing Zip Codes with Research Triangle PkZip CodePrimary CitySecondary CityMore Information27711DurhamResearch Triangle Park27711DurhamRtp27711DurhamE P A27711DurhamResearch Triangle PkAdvertisements