Duncans Mills, California Area Code

Duncans Mills, CA Area Codes are

369 and 707

Duncans Mills, CA is officially utilizing two area codes which are area codes 707 and 369.

In addition to Duncans Mills, CA area code information read more about area code 707, area code 369 and California area codes.

Duncans Mills, CA is located in Sonoma County and observes the Pacific Time Zone. View our Times by Area Code tool.

California Area Code Map