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Postal Union Post Office
1276 N Highway 47, Union, MO 63084
Phone: 636-583-2442
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)
PO Box Access Available
Monday 24 hours
Tuesday 24 hours
Wednesday 24 hours
Thursday 24 hours
Friday 24 hours
Saturday 24 hours
Sunday 24 hours
Monday 5:00pm
Tuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday 12:15pm
Sunday Closed
Monday 1:00pm - 3:00pm
Tuesday 1:00pm - 3:00pm
Wednesday Closed
Thursday Closed
Friday Closed
Saturday Closed
Sunday Closed
Monday 9:00am - 4:00pm
Tuesday 9:00am - 4:00pm
Wednesday 9:00am - 4:00pm
Thursday 9:00am - 4:00pm
Friday 9:00am - 4:00pm
Saturday 10:00am - 12:00pm
Sunday Closed
- Visit our Passport FAQ page for a complete overview of what to bring, what you need to know, and how long it will take.
- You will need two forms of Identification with copies.
- A passport quality photo. Available at location.
- The appropriate application form printed and filled out, and the required fee for applying or renewing.
- You can find up to date costs, information, and forms at the State Departments Travel Site
*Appointments are required outside of walk-in hours to apply for or renew US Passports. Please Call or schedule online.
Monday 9:00am - 2:30pm
Tuesday 9:00am - 2:30pm
Wednesday 9:00am - 2:30pm
Thursday 9:00am - 2:30pm
Friday 9:00am - 2:30pm
Saturday Closed
Sunday Closed
- Bulk Mail Acceptance
- Bulk Mail Account Balance
- Bulk Mail New Permit
- Burial Flags
- Business Line
- Business Reply Mail Account Balance
- Business Reply Mail New Permit
- Duck Stamps
- General Delivery
- Money Orders (Domestic)
- Money Orders (Inquiry)
- Packaged Stamps
- Passport Acceptance
- Passport Photo
- Pickup Accountable Mail
- Pickup Hold Mail
- PO Box Online
- Lobby has Copier
- Lot Parking
- Passport Appointment Hours
Visit our Links Page for Holiday Schedule, Change of Address, Hold Mail/Stop Delivery, PO Box rentals and fees, and Available Jobs.
*Please call to verify information. Is anything incorrect? Let us know here
Nearby Post Offices:
Washington
1777 Washington Xing
3.3 miles away
Saint Clair
1020 Plaza Ct S Ste a
4.2 miles away
Villa Ridge
461 Highway M
4.7 miles away
Dutzow
11854 Bluff Rd
5.9 miles away
Franklin County