Maricopa Post Office

345 California St, Maricopa, CA 93252

Contact Numbers

Phone: 661-769-8415
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 4:00pm
Tuesday 4:00pm
Wednesday 4:00pm
Thursday 4:00pm
Friday 4:00pm
Saturday 8:45am
Sunday Closed

Bulk Mail Acceptance Hours

Monday 8:00am - 12:30pm, 1:30pm - 3:30pm
Tuesday 8:00am - 12:30pm, 1:30pm - 3:30pm
Wednesday 8:00am - 12:30pm, 1:30pm - 3:30pm
Thursday 8:00am - 12:30pm, 1:30pm - 3:30pm
Friday 8:00am - 12:30pm, 1:30pm - 3:30pm
Saturday Closed
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 Line
  • 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
  • Lobby has Copier
  • 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:

427 North St
3.9 miles away

36 Midway Rd
7.3 miles away

337 Emmons Blvd
9.6 miles away

New Cuyama
4855 Primero St
12.4 miles away


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Driver allways in a hurry, my bank statement laying in dirt by mailbox, not delivering Grocery adds that ive signed up for. Bills have been delivered late when they have been mailed 5 days before due date. WTF is going on here. No quality control. Camp Scheideck. And pissed.


The mail carrier that delivers mail to Cuyama on Saturday drives like he’s going to a fire!! WAY too fast through my neighborhood


Very friendly , happy staff. Cindy is so nice polite & helpful. Our delivery carrier is friendly curtious , like family . Never had any problems.


This Office delivers mail to the wrong people all the time and they do not care. The USPS can no longer be trusted to deliver mail to the correct address because of contracted out people who do not care. Fraud happens because they give the information to others freely.

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