Area code 314 is an Eastern Missouri area code that covers St. Louis and some of its surrounding areas.
Counties that Use 314 Area Code
Franklin CountyJefferson CountySaint Charles CountySaint Francois CountySaint Louis CountySaint Louis City County
All Cities & Towns that Use 314 Area Code
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Where is 314 area code?
The following map shows the coverage of 314 area code. The coverage area is shown in green.