Castroville Main Post Office

Post office

1305 Hwy 90 W, Castroville, TX 78009

Hours are not published. Call before you go.

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

Book at USPS Directions Facilities in Castroville Facilities in Texas

Castroville Main Post Office accepts new U.S. passport applications in person in Castroville, TX. First-time and child visits are booked on the USPS scheduler. Search ZIP 78009. How to apply · How to renew