Zip Area Code

Grand Ridge, Illinois

Grand Ridge, Illinois, in LaSalle County, has ZIP code 61325 and area code 815, with 779 as an overlay.

ZIP code
61325
Area codes
815, 779
Time zone
Central Time
Coordinates
41.2386, -88.8168

ZIP codes in Grand Ridge

ZIP codePost officeCountyArea codes
61325Grand RidgeLaSalle County815, 779

Area codes for Grand Ridge

  • Area code 815

    In service since 1947. Shares its area with 779. Local calls are dialed with 1 plus ten digits.

  • Area code 779

    In service since March 17, 2007. Shares its area with 815. 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

Grand Ridge is in the Central Time zone.

Towns near Grand Ridge