Zip Area Code

Newcastle, California

Newcastle, California, in Placer County, has ZIP code 95658 and area code 916, with 279 as an overlay.

ZIP code
95658
Area codes
916, 279
Time zone
Pacific Time
Coordinates
38.8763, -121.1430

ZIP codes in Newcastle

ZIP codePost officeCountyArea codes
95658NewcastlePlacer County916, 279

Area codes for Newcastle

  • Area code 916

    In service since 1947. Shares its area with 279. Local calls are dialed with 1 plus ten digits.

  • Area code 279

    In service since March 10, 2018. Shares its area with 916. 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

Newcastle is in the Pacific Time zone.

Towns near Newcastle