![]() Photo from Digital-Topo-Maps.com | O'Fallon, MO 63366/63367/63368 Post Office Location: 401 Church Street; O'Fallon, MO Year Post Office built: Town(s) Served: Lake Saint Louis, O'Fallon Acceptable City Names: Cottleville, Dardeene PR, Dardeene Prairie, Lake Saint Louis, Lake St. Louis, O'Fallon, Saint Paul, Saint Peters, St Peters Not Acceptable City Names: Dardeene, LSL, Ofallon, Saint Charles Sectional Service Facility: St. Louis County(ies): St. Charles Info on O'Fallon: The City of O'Fallon is located along Interstate 70 in St. Cahrles County. In 2006 this was one of Money Magazines Top 100 places to live. O'fallon was first settle in the 1850's. In 1856 the Northern Missouri Railroad named that depot in the are O'Fallon. It was incorporated in 1912. |
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