Hercules Post Office

The Postal Service is classified as an essential government service, and will remain open wherever possible.

1611 Sycamore Ave, Hercules, CA 94547

Contact Numbers

Phone: 510-799-3607
Fax: 510-799-4584
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours







Lobby Hours
PO Box Access Available

Monday 24 hours
Tuesday 24 hours
Wednesday 24 hours
Thursday 24 hours
Friday 24 hours
Saturday 24 hours
Sunday 24 hours

Last Collection Times

Monday 5:00pm
Tuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday 2:00pm
Sunday Closed

*This facility does not process US Passports applications or renewals. Check nearby locations below.

  • Business Line
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • General Delivery
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Packaged Stamps
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Sure Money

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:

Rodeo
499 Parker Ave
0.8 mile away

Pinole
2101 Pear St
0.9 mile away

El Sobrante
535 Appian Way
1.7 miles away

Hilltop Carrier Annex
4180 Lakeside Dr
2.6 miles away

Reviews

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I am a 1st grade teacher in West Contra Costa Unified School District who went to mail 22 homework packets to my students. After spending over 4 hours of preparation, copying materials, addressing 22 large envelopes, putting stamps and sealing them, I asked assistance from the two postal workers at the counter to scan and put the remaining amount of postage due of $2.20 to each package. One of the ladies (the one with pigtales) told me that "you can just put 4 more forever stamps on the packages." I turned and told her NO. I asked them if this place was the U.S.Post Office and if there were people in line ? Yes to the post office and no one was in line except me.They told me I was rude. I told them I was tired and they had to scan each one and put the additional postage. I wanted a record. The never asked to help, nor between them they could get these packages stamped. Finally, I laid all the packages on the counter and waited. Maybe I should have delivered my packages myself. Terrrrrrrible experience!
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yet again, a "sorry you werent home" slip in my mailbox.... as i watch the mailtruck drive right by my house, i was home the whole time, they never knocked or rang. again.
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