Zip Area Code

Fenton, Missouri

Fenton, Missouri, in Jefferson County, has ZIP codes 63026 and 63099 and area code 314, with 557 as an overlay.

ZIP codes
63026, 63099
Area codes
314, 557
Time zone
Central Time
Coordinates
38.5699, -90.4477

ZIP codes in Fenton

ZIP codePost officeCountyArea codes
63026FentonJefferson County314, 557
63099*FentonSt. Louis County314, 557

* No mapped delivery area: P.O. boxes or a single organization. Area codes are those of the nearest ZIP code area.

Area codes for Fenton

  • Area code 314

    In service since 1947. Shares its area with 557. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

  • Area code 557

    In service since August 12, 2022. Shares its area with 314. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

Area codes here are matched from telephone rate centers, so a place near a boundary can have local numbers from either side of it.

Time zone

Fenton is in the Central Time zone.

Towns near Fenton