Zip Area Code

Cahokia Heights, Illinois

No ZIP code carries the name of Cahokia Heights, Illinois, in St. Clair County; the nearest ZIP codes are 62205, 62206 and 62207, in area code 618, with 730 as an overlay.

Nearest ZIP
62205, 62206, 62207
Area codes
618, 730
Time zone
Central Time
Coordinates
38.5721, -90.1553

Nearest ZIP codes to Cahokia Heights

These are the ZIP codes nearest to Cahokia Heights, each listed with the post office it is named after.

ZIP codePost officeCountyArea codes
62205East Saint LouisSt. Clair County618, 730
62206East Saint LouisSt. Clair County618, 730
62207East Saint LouisSt. Clair County618, 730

Area codes for Cahokia Heights

  • Area code 618

    In service since 1947. Shares its area with 730. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

  • Area code 730

    In service since July 7, 2023. Shares its area with 618. 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

Cahokia Heights is in the Central Time zone.

Towns near Cahokia Heights