El Cajon Main Post Office

Post office

401 W. Lexington Ave., El Cajon, CA 92020

(800) 801-9801

Hours are Mon-Fri 9a-12p 1p-3p; Sat 9am-12pm by appointment only. Call 1-800-801-9801 for appointments

Appointment required

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

Book at USPS Directions Facilities in El Cajon Facilities in California

El Cajon Main Post Office accepts new U.S. passport applications in person in El Cajon, CA. First-time and child visits are booked on the USPS scheduler. Search ZIP 92020. How to apply · How to renew