Mariposa Post Office

5109 Jessie St, Mariposa, CA 95338

Contact Numbers

Phone: 209-966-5798
Fax: 209-966-3278
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 4:15pm
Tuesday 4:15pm
Wednesday 4:15pm
Thursday 4:15pm
Friday 4:15pm
Saturday 2:00pm
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
  • Burial Flags
  • 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
  • Sure Money
  • Street Parking

Visit our Links Page for links to 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:

6629 State Highway 140
3.2 miles away

Catheys Valley
2675 State Highway 140
5.6 miles away

El Portal
5508 Foresta Rd
10.5 miles away

2885 Bear Valley Rd
10.8 miles away


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We live at 4881 Leonard Road. Today 3/13/18 we came home to our mail box and got our mail. By chance, I looked over (about 25 feet) to my right and saw a clear plastic bag hanging on a fence gate that is-not used. I investigated, and found a box inside the bag addressed to us (UPS GROUND # 1Z 695 855 03 0470 6781 , From: Valley Vet Supply "pet medication") tied to the not-used gate. Thankfully, I happened to spot it. This is the second time in less than 6 months this this has happened. By some chance, If our mail person is doing this, please have them stop this practice. Please deliver any packages that don't go in the mail box, to right- in-front of our home front door under the overhang. Thank You, Liz Vannata P.S. If you have any questions you can contact me at 559-709-2302

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