Costa Mesa Post Office

Post office

1590 Adams Ave, Costa Mesa, CA 92626

Hours: Monday-Friday_ 10am-3:30pm; Saturday_9am-1:30pm by appointment only. Please call (714)546-5022 for more information.

Appointment required

Hours and addresses come from the State Department listing, updated November 2, 2026.

Book at USPS Directions Facilities in Costa Mesa Facilities in California

Costa Mesa Post Office accepts new U.S. passport applications in person in Costa Mesa, CA. First-time and child visits are booked on the USPS scheduler. Search ZIP 92626. How to apply · How to renew

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