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Postal Gray Summit Post Office
2666 Highway 100, Gray Summit, MO 63039
Phone: 636-742-4299
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 11:30am
Tuesday 11:30am
Wednesday 11:30am
Thursday 11:30am
Friday 11:30am
Saturday 9:00am
Sunday Closed
Monday 9:00am - 11:00am, 11:30am - 2:00pm
Tuesday 9:00am - 11:00am, 11:30am - 2:00pm
Wednesday 9:00am - 11:00am, 11:30am - 2:00pm
Thursday 9:00am - 11:00am, 11:30am - 2:00pm
Friday 9:00am - 11:00am, 11:30am - 2:00pm
Saturday Closed
Sunday Closed
*This facility does not process US Passports applications or renewals. Check nearby locations below.
- 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)
- Money Orders (International)
- Pickup Accountable Mail
- Pickup Hold Mail
- PO Box Online
- Lot Parking
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:
Labadie
106 3rd St
2.1 miles away
Pacific
324 W Saint Louis St
2.9 miles away
Villa Ridge
461 Highway M
2.9 miles away
Robertsville
7292 Highway O
3.0 miles away
Franklin County
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