What are the Johns Hopkins, Maryland Zip Codes for 2020, 2019Primary Zip Codes for Johns HopkinsZip CodePrimary CitySecondary City21287BaltimoreJohns Hopkins, HospitalCities sharing Zip Codes with Johns HopkinsZip CodePrimary CitySecondary CityMore Information21287BaltimoreJohns Hopkins21287BaltimoreJohns Hopkins HospitalAdvertisements