Zip Area Code

Massac County, Illinois

Massac County, Illinois, has 5 towns and 5 ZIP codes, in area code 618, with 730 as an overlay.

Towns in Massac County, A to Z

TownZIP codesArea codes
Belknap62908618, 730
Brookport62910618, 730
Joppa62953618, 730
Karnak62956618, 730
Metropolis62960618, 730

ZIP codes in Massac County

Area codes in Massac County

  • 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.