Zip Area Code

New Castle, Pennsylvania

New Castle, Pennsylvania, in Lawrence County, has ZIP codes 16101, 16102, 16103, 16105, 16107 and 16108 and area code 724, with 878 as an overlay.

ZIP codes
16101, 16102, 16103, 16105 …
Area codes
724, 878
Time zone
Eastern Time
Coordinates
40.9922, -80.3316

ZIP codes in New Castle

ZIP codePost officeCountyArea codes
16101New CastleLawrence County724, 878
16102New CastleLawrence County724, 878
16103*New CastleLawrence County724, 878
16105New CastleLawrence County724, 878
16107*New CastleLawrence County724, 878
16108*New CastleLawrence County724, 878

* No mapped delivery area: P.O. boxes or a single organization. Area codes are those of the nearest ZIP code area.

Area codes for New Castle

  • Area code 724

    In service since February 1, 1998. Shares its area with 878. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

  • Area code 878

    In service since August 17, 2001. Shares its area with 412 and 724. 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

New Castle is in the Eastern Time zone.

Towns near New Castle