Post Offices in & near Newcastle, California. Operating hours, locations, phone/fax number, services information.
Post Office in Newcastle, California on Old State Hwy. Operating hours, phone number, services information, and other locations.
Address: 9241 Old State Hwy, Newcastle, CA 95658
Phone: 916-663-9405
Fax: 916-663-9581
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
