Post Offices
Post Offices in & near Union City, California. Operating hours, locations, phone/fax number, services information.
Alvarad Post Office
Alvarado Post Office in Union City, California on Smith St. Operating hours, phone number, services information, and other locations.
Address: 3861 Smith St, Union City, CA 94587
Phone: 510-471-1180
Fax: 510-471-0306
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Retail Hours
Monday 9:30am - 4:30pmTuesday 9:30am - 4:30pm
Wednesday 9:30am - 4:30pm
Thursday 9:30am - 4:30pm
Friday 9:30am - 4:30pm
Saturday Closed
Sunday Closed
Lobby Hours
Monday 9:30am - 4:30pmTuesday 9:30am - 4:30pm
Wednesday 9:30am - 4:30pm
Thursday 9:30am - 4:30pm
Friday 9:30am - 4:30pm
Saturday Closed
Sunday Closed
Last Collection Times
Monday 4:00pmTuesday 4:00pm
Wednesday 4:00pm
Thursday 4:00pm
Friday 4:00pm
Saturday 4:00pm
Sunday Closed
Mount Eden Post Office
Address: 2163 Aldengate Way, Hayward, CA 94545
Phone: 510-782-5636
Fax: 510-783-0460
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Union City Post Office
Address: 33170 Alvarado Niles Rd, Union City, CA 94587
Phone: 510-471-1180
Fax: 510-471-0306
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Fremon Post Office
Address: 37010 Dusterberry Way, Fremont, CA 94536
Phone: 510-792-0282
Fax: 510-792-5437
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Hayward Post Office
Address: 24438 Santa Clara St, Hayward, CA 94544
Phone: 510-783-5963
Fax: 510-783-0460
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Bradford Post Office
Address: 822 C St, Hayward, CA 94541
Phone: 510-783-5963
Fax: 510-783-0460
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Newark Post Office
Address: 6655 Clark Ave, Newark, CA 94560
Phone: 510-797-0903
Fax: 510-797-9315
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Nil Post Office
Address: 160 J St, Fremont, CA 94536
Phone: 510-793-0291
Fax: 510-792-5437
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
San Lorenz Post Office
Address: 15808 Hesperian Blvd, San Lorenzo, CA 94580
Phone: 510-317-1104
Fax: 510-317-1103
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Castro Valley Post Office
Address: 20283 Santa Maria Ave, Castro Valley, CA 94546
Phone: 510-581-0159
Fax: 510-581-4074
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Washington Manor Post Office
Address: 921 Manor Blvd, San Leandro, CA 94579
Phone: 510-351-5729
Fax: 510-614-8183
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457