Castaic Passport Mega Site

Post office

28201 Franklin Parkway, Santa Clarita, CA 91383

Please call (661)775-7171 for more information. **DECEMBER 24, 2015 HOURS: 10AM - 5PM*

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

Book at USPS Directions Facilities in Santa Clarita Facilities in California

Castaic Passport Mega Site accepts new U.S. passport applications in person in Santa Clarita, CA. First-time and child visits are booked on the USPS scheduler. Search ZIP 91383. How to apply · How to renew