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City of O'Fallon
100 N Main St, O Fallon, MO 63366
O'Fallon City Hall sits in a complex that is home to several other city departments, including the O'Fallon policeMore department, public works, the municipal court, and planning and development. The complex is also home to the Sisters of the Most Precious Blood convent and is listed on the National Register of Historic Places. The city council meets the second and fourth Thursday of the month, with a workshop at 5:30pm and a meeting at 7:30pm. All meetings are streamed online at the city's website.