Zip Area Code

Jersey County, Illinois

Jersey County, Illinois, has 9 towns and 8 ZIP codes, in area code 618, with 730 as an overlay.

Towns in Jersey County, A to Z

TownZIP codesArea codes
Brighton62012618, 730
Dow62022618, 730
Elsah62028618, 730
Fidelity62030618, 730
Fieldon62031618, 730
Grafton62037618, 730
Jerseyville62052618, 730
Medora62063618, 730
Ottervillenearest62037618, 730

ZIP codes in Jersey County

Area codes in Jersey 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.