O Fallon Post Office in O'Fallon, IL
Find O Fallon Post Office in O'Fallon,St. Clair County,IL to get information on Postal services, Mail forwarding, Money orders, Package delivery, Stamps, and Postage rates.
O Fallon Post Office
1111 South Lincoln Avenue, O'Fallon, IL 62269
618-632-4691
Monday 08:30 AM - 07:00 PM,Tuesday 08:30 AM - 07:00 PM,Wednesday 08:30 AM - 07:00 PM,Thursday 08:30 AM - 07:00 PM,Friday 08:30 AM - 07:00 PM,Saturday 09:00 AM - 04:00 PM,Sunday Closed
