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314
Missouri (MO)
By Area Code
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Cities Covered by
314
Area Code
Crystal City
De Soto
Earth City
Farmington
Fort Leonard Wood
Frohna
Gravois Mills
Gray Summit
Grover
Hazelwood
Maryland Heights
O Fallon
Saint Ann
Saint Clair
Saint Louis
Union
Valley Park
Warrenton
Westchester
Arnold
Ballwin
Barnhart
Bridgeton
Cedar Hill
Chesterfield
Columbia
Elsah
Eureka
Fenton
Florissant
High Ridge
House Springs
Imperial
Jefferson City
Kansas City
Kewanee
Kimmswick
Lake Saint Louis
Ozark
Pacific
Robertsville
Rolla
Saint Charles
Saint Peters
Villa Ridge
Washington
Wentzville
Related Area Codes
314
,
573
,
636
,
417
,
618
,
630
,
708
,
816
,
913