Zip Area Code

Fairfield, California

Fairfield, California, in Solano County, has ZIP codes 94533 and 94534 and area code 707, with 369 as an overlay.

ZIP codes
94533, 94534
Area codes
707, 369
Time zone
Pacific Time
Coordinates
38.2547, -122.0836

ZIP codes in Fairfield

ZIP codePost officeCountyArea codes
94533FairfieldSolano County707, 369
94534FairfieldSolano County707, 369

Area codes for Fairfield

  • Area code 707

    In service since 1959. Shares its area with 369. Local calls are dialed with 1 plus ten digits.

  • Area code 369

    In service since February 1, 2023. Shares its area with 707. 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

Fairfield is in the Pacific Time zone.

Towns near Fairfield