Area Code 636


Country United States
State/Province Missouri 
Major City St. Charles 
Easy URL areacode.org/636 

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636 Area Code

AreaCode.org is an area code finder with detailed information on the 636 area code including 636 area code map.

Major cities like St. Charles within area code 636 are also listed on this page. More area codes, including those outside of Missouri, are found on the AreaCode.org homepage.

Some telephone area codes are overlaid, requiring 10-digit dialing. AreaCode.org is your one-stop site for area code lookup, area code search, and area code locator.


Area Code 636 Detail

Area code 636 serves east central Missouri, but does not include St. Louis or the majority of St. Louis County. Area code 636 was created in a split from area code 314.

636 Area Code Location
Major Cities County State/Province
St. Charles  St. Charles  MO 
St. Peters  St. Charles  MO 
Other Cities By Name
Antonia  Jefferson  MO 
Augusta  St. Charles  MO 
Cedar Hill  Jefferson  MO 
Chesterfield  St. Louis  MO 
Dardenne  St. Charles  MO 
De Soto  Jefferson  MO 
Defiance  St. Charles  MO 
Eureka  St. Louis  MO 
Fenton  St. Louis  MO 
Foley  Lincoln  MO 
Foristell  St. Charles  MO 
Gray Summit  Franklin  MO 
Harvester  St. Charles  MO 
Hawk Point  Lincoln  MO 
Herculaneum  Jefferson  MO 
High Hill  Montgomery  MO 
High Ridge  Jefferson  MO 
Hillsboro  Jefferson  MO 
Imperial  Jefferson  MO 
Jonesburg  Montgomery  MO 
Manchester  St. Louis  MO 
Marthasville  Warren  MO 
Maxville  Jefferson  MO 
Moscow Mills  Lincoln  MO 
New Melle  St. Charles  MO 
Ofallon  St. Charles  MO 
Old Monroe  Lincoln  MO 
Pacific  Franklin  MO 
Pond  St. Louis  MO 
Portage Des Sioux  St. Charles  MO 
Saint Charles  St. Charles  MO 
St. Clair  Franklin  MO 
Troy  Lincoln  MO 
Truxton  Warren  MO 
Union  Franklin  MO 
Valley Park  St. Louis  MO 
Warrenton  Warren  MO 
Washington  Franklin  MO 
Wentzville  St. Charles  MO 
Winfield  Lincoln  MO 
Wright City  Warren  MO 


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