Zip Area Code

Atascadero, California

Atascadero, California, in San Luis Obispo County, has ZIP codes 93422 and 93423 and area code 805, with 820 as an overlay.

ZIP codes
93422, 93423
Area codes
805, 820
Time zone
Pacific Time
Coordinates
35.4518, -120.7166

ZIP codes in Atascadero

ZIP codePost officeCountyArea codes
93422AtascaderoSan Luis Obispo County805, 820
93423*AtascaderoSan Luis Obispo County805, 820

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

Area codes for Atascadero

  • Area code 805

    In service since 1957. Shares its area with 820. Local calls are dialed with 1 plus ten digits.

  • Area code 820

    In service since June 30, 2018. Shares its area with 805. 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

Atascadero is in the Pacific Time zone.

Towns near Atascadero