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Missouri Area Codes

The state of Missouri, USA is currently served by a total of 8 area codes:

Overlaying area codes

These Missouri area codes overlay (cover the same geographic area). The first code listed is the parent code. Overlay area codes are added when no more phone numbers are available in an existing Numbering Plan Area.

  • 314/557
  • 816/975

Larger Missouri cities and their area codes

City CountyArea code(s)
BallwinSt Louis636
Blue SpringsJackson816/975
Cape GirardeauCape Girardeau573
ChesterfieldSt Louis636
ColumbiaBoone573
FlorissantSt Louis314/557
IndependenceJackson816/975
Jefferson CityCole573
JoplinJasper417
Kansas CityPlatte816/975
Lee's SummitJackson816/975
LibertyClay816/975
O'FallonSt Charles636
OakvilleSt Louis314/557
SpringfieldGreene417
St CharlesSt Charles636
St JosephBuchanan816/975
St LouisSt Louis314/557
St PetersSt Charles636
University CitySt Louis314/557
WentzvilleSt Charles636