Lathrop Post Office

15529 7th St, Lathrop, CA 95330

Contact Numbers:

Phone: 209-858-2324
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Bulk Mail Acceptance Hours

Monday-Friday 9:00am - 4:00pm
Saturday-Sunday Closed

Pickup Services Hours

Monday-Friday 8:00am - 5:00pm
Saturday 7:30am - 10:30am
Sunday Closed

Lobby Hours

Monday-Friday 6:00am - 6:00pm
Saturday 6:00am - 4:00pm
Sunday Closed

PO Box Access Hours

Monday-Friday 6:00am - 6:00pm
Saturday 6:00am - 4:00pm
Sunday Closed

Last Collection Times

Monday-Friday 5:00pm
Saturday 10:30am
Sunday Closed

Carrier Facility Hours

Monday-Friday 8:00am - 4:00pm
Saturday-Sunday Closed

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

  • Bulk Mail Acceptance
  • Bulk Mail Account Balance
  • Bulk Mail New Permit
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • General Delivery
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Priority Mail International®
  • Street Parking

Visit our Links Page for Change of Address, Hold Mail/Stop Delivery, PO Boxes™ rentals and fees, Rates on Postage Stamps and Freight/Shipping, Holidays, Bulk Mail, Money Orders, and Available Jobs.

*Please call to verify information. Is anything incorrect? Let us know here

Nearby Post Offices:

165 N Maple Ave
2.5 miles away

French Camp
315 E French Camp Rd
2.5 miles away

Industrial Park
668 Industrial Park Dr
3.0 miles away

Arch Airport
3131 Arch Airport Rd
3.8 miles away


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Rude and combative is only the tip of the iceberg on how I would describe how this branch's "customer" service agent handle a simple questions / request. As if they were doing us a favor. No wonder why people prefer to pay more and use UPS.


On Sept 14 my friend mailed a card and $100 (I know, she shouldn't) for my sister who lost everything in the Butte fire in Calaveras County. She sent it to my PO Box because she didn't know I had all my mail being sent to my street address, I was told by Lathrop personnel that any mail with a forwarding address was sent to Los Angeles for them to mail to the correct address. To-date, I have not received this letter (floral print outside) addressed to me. I cannot believe that this letter would have been forwarded to Los Angeles instead of just simply including it with my other mail. I do not know who now has my old PO Box (in case it was put in it by mistake) and if they would be the type of people that would return it to the post office. It seems to me that this "forwarding rule" just adds unnecessary cost to the running of UPS. Now both my friend and my sister are out $100.

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