📍 IDAHO
Caldwell Main Post Office
Post Office (USPS) · Caldwell
The Caldwell Main Post Office on Arthur Street sits a couple of blocks from the heart of downtown, making it a practical stop for residents of this Canyon County city who need to lodge a first-time passport application close to home.
Location & contact
📍 Location & contact
📖 About this office
The Caldwell Main Post Office on Arthur Street sits a couple of blocks from the heart of downtown, making it a practical stop for residents of this Canyon County city who need to lodge a first-time passport application close to home. As a designated USPS acceptance facility, its clerks witness your signature on Form DS-11, verify your identification, seal your documents, and forward everything to the State Department for processing.
Because passport work here is handled through the Postal Service's appointment scheduler rather than the walk-up retail line, it pays to reserve a slot in advance at the USPS scheduler before you arrive. Bring an unsigned DS-11, proof of citizenship such as a certified birth certificate, and a photo ID along with a photocopy of that ID.
Caldwell applicants who prefer a government-office setting can compare this branch with the other Caldwell passport locations, or review options across the wider region on our Idaho passport directory.
💡 Good to know
Appointments for passport service are booked through the USPS system, and slots can fill quickly during spring and early summer, so plan ahead. If this branch is fully booked, the nearby Canyon County Clerk is an alternate acceptance point in the same ZIP code.