Passport Acceptance Offices in Arnold, Missouri

Arnold is a city of roughly 20,000 residents in Jefferson County, Missouri, nestled along the Meramec River about 20 miles south of downtown St. Louis. Though it sits within the St. Louis metropolitan area, Arnold maintains its own distinct suburban character, and its two passport acceptance facilities reflect that community orientation — one inside the post office serving workaday applicants who want to combine errands, and one inside the Jefferson County Library branch for families who prefer a quieter, more guided experience.

Applicants who need a straightforward first-time adult passport will find the Arnold Post Office on Jeffco Boulevard convenient — the USPS scheduler lets you lock in a specific time slot without the guesswork of walk-in queues. Families applying for a child's first passport may prefer the library setting at the Arnold Branch on Missouri State Road, where staff take a more deliberate pace and can walk parents through the additional requirements for minor applicants, including the consent provisions that apply when both parents are not present.

Jefferson County has no regional passport agency of its own, and Missouri is not home to a full-service U.S. Passport Agency open to the general public. The nearest agency for urgent travel needs is the Chicago Passport Agency in Illinois, approximately 310 miles north of Arnold — roughly a five-hour drive. Travelers facing imminent international departures within 14 days should contact that agency directly via travel.state.gov to determine appointment eligibility.

For routine applications, current State Department processing windows apply. Arnold's location just off I-55 makes it accessible to residents of Imperial, Barnhart, Seckman, and other southern Jefferson County communities who want to avoid driving into St. Louis for an acceptance appointment.

All acceptance facilities in Arnold operate by appointment — neither the post office nor the library accepts walk-ins without a confirmed slot. Book USPS appointments through the official USPS scheduler; for the library, call (636) 296-5171. Neither location offers passport photo services, so arrange photos in advance. For statewide context and other Jefferson County options, browse the Missouri passport offices directory.