Post Offices in & near Clearlake Oaks, California. Operating hours, locations, phone/fax number, services information.
Post Office in Clearlake Oaks, California on E Highway 20. Operating hours, phone number, services information, and other locations.
Address: 13280 E Highway 20, Clearlake Oaks, CA 95423
Phone: 707-998-3544
Fax: 707-998-3544
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
