314 Area Code Information

State: MO

Largest City in Area: SAINT LOUIS

Where is Area Code 314? Area code (314) is in the state of MO. Below, are the major cities in the area code (314).

Major Cities in 314

  • SAINT LOUIS, MO (3,554,078)
  • FLORISSANT, MO (617,911)
  • SAINT CHARLES, MO (379,416)
  • BALLWIN, MO (317,485)
  • SAINT PETERS, MO (266,680)
  • CHESTERFIELD, MO (259,419)
  • O FALLON, MO (213,836)
  • HAZELWOOD, MO (202,894)
  • FENTON, MO (181,858)
  • MARYLAND HEIGHTS, MO (177,803)

Zip Codes in 314

  • 63005
  • 63006
  • 63017
  • 63031
  • 63032
  • 63033
  • 63034
  • 63038
  • 63042
  • 63043
  • 63044
  • 63045
  • 63053
  • 63061
  • 63074
  • 63088
  • 63101
  • 63102
  • 63103
  • 63104

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