Rivertown Post Office

420 W 4th St, Antioch, CA 94509

Contact Numbers

Phone: 925-778-3578
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours







Lobby Hours
PO Box Access Available

Monday 6:30am - 6:30pm
Tuesday 6:30am - 6:30pm
Wednesday 6:30am - 6:30pm
Thursday 6:30am - 6:30pm
Friday 6:30am - 6:30pm
Saturday 8:00am - 6:00pm
Sunday Closed

Last Collection Times

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

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

  • Business Line
  • 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:

Antioch
2730 W Tregallas Rd
0.8 mile away

Pittsburg
835 Railroad Ave
2.9 miles away

Atlantic Plaza
296 Atlantic Ave
3.1 miles away

Oakley
400 Del Antico Ave
4.3 miles away

Reviews

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I am so glad not alot of people know about this post office, when there is a line its not usually very long. I can get in and get out quickly.
5
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