Zip Area Code

Duncans Mills, California

Duncans Mills, California, in Sonoma County, has ZIP code 95430 and area code 707, with 369 as an overlay.

ZIP code
95430
Area codes
707, 369
Time zone
Pacific Time
Coordinates
38.4538, -123.0550

ZIP codes in Duncans Mills

ZIP codePost officeCountyArea codes
95430Duncans MillsSonoma County707, 369

Area codes for Duncans Mills

  • 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

Duncans Mills is in the Pacific Time zone.

Towns near Duncans Mills