Post Offices in & near Hidden Valley Lake, California. Operating hours, locations, phone/fax number, services information.
Post Office in Middletown, California on Calistoga Rd. Operating hours, phone number, services information, and other locations.
Address: 21177 Calistoga Rd, Middletown, CA 95461
Phone: 707-987-3201
Fax: 707-987-0692
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
