Petaluma Post Office

120 4th St, Petaluma, CA 94952

Contact Numbers

Phone: 707-769-5352
Fax: 707-762-3303
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 Closed

Last Collection Times

Monday 5:00pm
Tuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday 4:00pm
Sunday Closed

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

  • Burial Flags
  • Business Line
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Lot 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:

Casa Grande Annex
1601 Corporate Cir
1.5 miles away

North Bay P and DC Finance
1150 N McDowell Blvd
1.7 miles away

11041 Main St
2.8 miles away

502 E Cotati Ave
4.6 miles away


*Comments below are not read by postal employees. Please do not post personal information.

*By clicking Submit, you agree to our Privacy Policy & Terms of Use.


Our mail carrier at PJHS is awesome. His name is Ramon and he always wears a smile. Thanks for doing an awesome job Ramon!


Our carrier, Karen, is amazing! One of the MOST wonderful uplifting fun people- so kind, so efficient. I hope your back feels better after surgery because we missed you!


I wanted to praise our postman, Gilbert, on the West side. He is professional, efficient, and friendly. Sometimes we take it for granted that the mailman comes every day and we get our letters and packages in good shape. It takes a dedicated person to accomplish that day in, day out, year in, year out. We appreciate our mailman, Gilbert very much.


Can you please let me known if we can sent a small package about 1 pound registered insured for $11.000 in Ca. Thank you Andre Fleury


So annoying when the mail courier places the key in your neighbors box and you cant get into the locker to get your package. Happens frequently.


I’ve never written a review about a mailman before but I just wanted to say that a new mailman that we have at 855 Daniel Dr. in Petaluma exit completely wonderful . He’s so friendly and so welcoming I just felt the need to report that someone. He’s doing a great job

* is not a part of, or affiliated with, the official United States Postal Service (USPS).