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

Bulk Mail Acceptance Hours

Monday-Friday 8:00am - 12:30pm, 1:30pm - 3:30pm
Saturday-Sunday Closed

Pickup Services Hours

Monday-Friday 8:00am - 12:30pm, 1:30pm - 4:00pm
Saturday 7:00am - 9:00am
Sunday Closed

Lobby Hours

Monday-Sunday 12:01am - 11:59pm

PO Box Access Hours

Monday-Sunday 12:01am - 11:59pm

Last Collection Times

Monday-Friday 4:00pm
Saturday 8:45am
Sunday Closed

Carrier Facility Hours

Monday-Friday 8:00am - 12:30pm, 1:30pm - 3:00pm
Saturday-Sunday Closed

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

  • Bulk Mail Acceptance
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • General Delivery
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Priority Mail International®
  • Lobby has Copier
  • Lot 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:

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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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).