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Postal Alvarado Post Office
3861 Smith St, Union City, CA 94587
Phone: 510-471-1180
Fax: 510-471-0306
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)
PO Box Access Available
Monday 9:30am - 4:30pm
Tuesday 9:30am - 4:30pm
Wednesday 9:30am - 4:30pm
Thursday 9:30am - 4:30pm
Friday 9:30am - 4:30pm
Saturday Closed
Sunday Closed
Monday 4:00pm
Tuesday 4:00pm
Wednesday 4:00pm
Thursday 4:00pm
Friday 4:00pm
Saturday 4:00pm
Sunday Closed
*This facility does not process US Passports applications or renewals. Check nearby locations below.
- Business Line
- Packaged Stamps
- Pickup Accountable Mail
- Pickup Hold Mail
- PO Box Online
- Street Parking
Visit our Links Page for Holiday Schedule, Change of Address, Hold Mail/Stop Delivery, PO Box rentals and fees, and Available Jobs.
*Please call to verify information. Is anything incorrect? Let us know here
Nearby Post Offices:
Union City
33170 Alvarado Niles Rd
1.5 miles away
Mount Eden
2163 Aldengate Way
1.7 miles away
Hayward
24438 Santa Clara St
2.5 miles away
Bradford
822 C St
3.0 miles away
Alameda County
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