PassportMap

Sebastian Post Office

Post office

3476 Business 77, Sebastian, TX 78594

(956) 347-5007

Hours are not published. Call before you go.

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

Sebastian Post Office accepts new U.S. passport applications in person in Sebastian, TX. First-time and child visits are booked on the USPS scheduler. Search ZIP 78594. How to apply · How to renew