Zip Area Code

Lemont, Illinois

Lemont, Illinois, in Cook County, has ZIP code 60439 and area code 630, with 331 as an overlay.

ZIP code
60439
Area codes
630, 331
Time zone
Central Time
Coordinates
41.7074, -87.9756

ZIP codes in Lemont

ZIP codePost officeCountyArea codes
60439LemontCook County630, 331

Area codes for Lemont

  • Area code 630

    In service since August 3, 1996. Shares its area with 331. Local calls are dialed with 1 plus ten digits.

  • Area code 331

    In service since October 7, 2007. Shares its area with 630. Local calls are dialed with 1 plus ten digits.

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

Lemont is in the Central Time zone.

Towns near Lemont