Where is Zip Code 21648 map for 2020, 2019Primary Zip Codes for 21648Zip CodePrimary CitySecondary City21648MadisonWoolfordCities sharing Zip Codes with 21648Zip CodePrimary CitySecondary CityMore Information21648MadisonWoolford21677WoolfordMadison Madison population stats 21677WoolfordWoolfordAdvertisements