US ZIP Code Explorer

US ZIP Code Explorer

Discover detailed location information including cities, counties, and area codes for any US ZIP Code

Find ZIP Codes by address, city, county, or state

Zip Code State Type County City Area Code
Search for a ZIP code to see details

ZIP Codes of Frederick Area (Maryland)

County ZIP Code Major City Type Area Code
Frederick 21701 Frederick, Lewistown Standard 240 301
Frederick 21702 Frederick, Fort Detrick Standard 240 301
Frederick 21703 Frederick Standard 301 240
Frederick 21704 Frederick, Urbana Standard 301 240
Frederick 21705 Frederick PO Box 240
Frederick 21709 Frederick Unique 240
Frederick 21710 Adamstown, Doubs Standard 240 301
Frederick 21714 Braddock Heights, Braddock Hts PO Box 240
Frederick 21716 Brunswick Standard 301
Frederick 21717 Buckeystown PO Box 240
Frederick 21718 Burkittsville Standard 240
Frederick 21727 Emmitsburg Standard 240 301
Frederick 21754 Ijamsville Standard 240
Frederick 21755 Jefferson Standard 240
Frederick 21757 Keymar, Detour, Middleburg Standard
Frederick 21758 Knoxville, Brunswick Standard 301
Frederick 21759 Ladiesburg PO Box 240
Frederick 21762 Libertytown PO Box 240
Frederick 21769 Middletown Standard 240 301
Frederick 21770 Monrovia Standard 240 301
Frederick 21771 Mount Airy Standard 240 301
Frederick 21773 Myersville Standard 240 301
Frederick 21774 New Market Standard 301
Frederick 21775 New Midway PO Box 240
Frederick 21777 Point Of Rocks, Pt Of Rocks Standard 240
Frederick 21778 Rocky Ridge Standard 240
Frederick 21780 Sabillasville Standard 240
Frederick 21788 Thurmont, Graceham Standard 240 301
Frederick 21790 Tuscarora Standard 240
Frederick 21792 Unionville PO Box 240
Frederick 21793 Walkersville Standard 301
Frederick 21798 Woodsboro Standard 240