Where is Zip Code 21042 map for 2020, 2019Primary Zip Codes for 21042Zip CodePrimary CitySecondary City21042Ellicott CityEllicottCities sharing Zip Codes with 21042Zip CodePrimary CitySecondary CityMore Information21041Ellicott CityEllicott21042Ellicott CityEllicott21043Ellicott CityEllicott21041Ellicott CityEllicott City Ellicott City population stats 21043Ellicott CityEllicott City Ellicott City population stats Advertisements