PassportMap

Caldwell Post Office

Post office

201 N. Main Street, Caldwell, TX 77836

(979) 567-4396

Hours are not published. Call before you go.

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

Caldwell Post Office accepts new U.S. passport applications in person in Caldwell, TX. First-time and child visits are booked on the USPS scheduler. Search ZIP 77836. How to apply · How to renew