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Frederick County, Maryland ZIP Codes

ZIP Codes in Frederick County with Associated Cities & Towns

Frederick County, MD - Standard ZIP Codes

20842 | 20871 | 21701 | 21702 | 21703 | 21704 | 21710 | 21716 | 21718 | 21719 | 21727 | 21754 | 21755 | 21757 | 21758 | 21769 | 21770 | 21771 | 21773 | 21774 | 21776 | 21777 | 21778 | 21780 | 21783 | 21787 | 21788 | 21790 | 21791 | 21793 | 21798

Frederick County, MD - PO Box ZIP Codes (NO DEMOGRAPHIC DATA)

21705 | 21714 | 21717 | 21759 | 21762 | 21775 | 21792

Frederick County, MD - Unique - Single Entity ZIP Codes (NO DEMOGRAPHIC DATA)

21709

Note: Every ZIP Code has a single ACTUAL City Name assigned by the US Postal Service (USPS).
See the specific ZIP Code for acceptable Alternate City Names and spelling variations.

ZIP Codes in Frederick County Address Data

Businesses Addresses: 9,365
PO Box Addresses: 5,765
Residential Addresses: 125,183

Multi-Family Addresses: 10,207
Single Family Addresses: 114,295

Map of Frederick County, MD ZIP Codes With Actual (Default) City Names

Adamstown
Braddock Heights
Brunswick
Buckeystown
Burkittsville
Emmitsburg
Frederick
Ijamsville
Jefferson
Knoxville
Ladiesburg
Libertytown
Middletown
Monrovia
Mount Airy
Myersville
New Market
New Midway
Point of Rocks
Rocky Ridge
Sabillasville
Thurmont
Tuscarora
Unionville
Walkersville
Woodsboro

Frederick County, Maryland ZIP Codes

ZIP Codes in Frederick County with Associated Cities & Towns

ZIP Codes in Frederick County Address Data

Map of Frederick County, MD ZIP Codes With Actual (Default) City Names

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