Frederick County, Maryland

Frederick County, Maryland, has 49 towns and 32 ZIP codes, in area code 301, with 227 as an overlay.

Towns in Frederick County, A to Z

Town	ZIP codes	Area codes
Adamstown	21710	301, 227, 240
Bagtown	nearest21773	301, 227, 240
Ballenger Creek	nearest21704, 21705, 21717	301, 227, 240
Bartonsville	nearest21701, 21704, 21705	301, 227, 240
Braddock Heights	21714	301, 227, 240
Brunswick	21716	301, 227, 240
Buckeystown	21717	301, 227, 240
Burkittsville	21718	301, 227, 240
Dargan	nearest21715, 21758	301, 227, 240
Edgemont	nearest21719, 21780, 21783	301, 227, 240
Emmitsburg	21727	301, 227, 240
Fort Ritchie	nearest21719, 21780, 21783	301, 227, 240
Frederick	21701, 21702, 21703, 21704, 21705, 21709	301, 227, 240
Gapland	nearest21715, 21718, 21779	301, 227, 240
Garretts Mill	nearest21715, 21716, 21758	301, 227, 240
Graceham	nearest21778, 21788	301, 227, 240
Green Valley	nearest20872, 21754, 21770	301, 227, 240
Greensburg	nearest21719, 21780, 21783	301, 227, 240
Highfield-Cascade	nearest21719, 21780	301, 227, 240
Ijamsville	21754	301, 227, 240
Jefferson	21755	301, 227, 240
Knoxville	21758	301, 227, 240
Ladiesburg	21759	301, 227, 240
Lewistown	nearest21702, 21788	301, 227, 240
Libertytown	21762	301, 227, 240
Linganore	nearest21701, 21774	301, 227, 240
Middletown	21769	301, 227, 240
Monrovia	21770	301, 227, 240
Mount Airy	21771	301, 227, 240
Mount Lena	nearest21713, 21773	301, 227, 240
Myersville	21773	301, 227, 240
New Market	21774	301, 227, 240
New Midway	21775	301, 227, 240
Point Of Rocks	21777	301, 227, 240
Rocky Ridge	21778	301, 227, 240
Rosemont	nearest21716, 21755, 21758	301, 227, 240
Sabillasville	21780	301, 227, 240
San Mar	nearest21713, 21746, 21773	301, 227, 240
Sandy Hook	nearest21715, 21716, 21758	301, 227, 240
Spring Ridge	nearest21701, 21705, 21774	301, 227, 240
Thurmont	21788	301, 227, 240
Trego-Rohrersville Station	nearest21718, 21756, 21779	301, 227, 240
Tuscarora	21790	301, 227, 240
Union Bridge	21791	301, 227, 240
Unionville	21792	301, 227, 240
Urbana	nearest21704, 21754, 21770	301, 227, 240
Walkersville	21793	301, 227, 240
Woodsboro	21798	301, 227, 240
Yarrowsburg	nearest21715, 21718, 21758	301, 227, 240

ZIP codes in Frederick County

21701Frederick301, 227, 240
21702Frederick301, 227, 240
21703Frederick301, 227, 240
21704Frederick301, 227, 240
21705Frederick301, 227, 240
21709Frederick301, 227, 240
21710Adamstown301, 227, 240
21714Braddock Heights301, 227, 240
21716Brunswick301, 227, 240
21717Buckeystown301, 227, 240
21718Burkittsville301, 227, 240
21727Emmitsburg301, 227, 240
21754Ijamsville301, 227, 240
21755Jefferson301, 227, 240
21758Knoxville301, 227, 240
21759Ladiesburg301, 227, 240
21762Libertytown301, 227, 240
21769Middletown301, 227, 240
21770Monrovia301, 227, 240
21771Mount Airy301, 227, 240
21773Myersville301, 227, 240
21774New Market301, 227, 240
21775New Midway301, 227, 240
21777Point Of Rocks301, 227, 240
21778Rocky Ridge301, 227, 240
21780Sabillasville301, 227, 240
21788Thurmont301, 227, 240
21790Tuscarora301, 227, 240
21791Union Bridge301, 227, 240
21792Unionville301, 227, 240
21793Walkersville301, 227, 240
21798Woodsboro301, 227, 240

Area codes in Frederick County

Area code 301
In service since 1947. Shares its area with 227 and 240. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.
Area code 227
In service since June 14, 2023. Shares its area with 240 and 301. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

Local numbers in area code 301

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