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100 North Main StreetdividerO'Fallon, MO 63366dividerPhone:  636-240-2000
Hours:  8 a.m. – 5 p.m., Monday – Friday

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Welcome to O'Fallon, Missouri

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O'Fallon

O'Fallon Municipal Centre
100 North Main Street
O'Fallon, MO 63366
Phone:  636-240-2000
Hours:  Monday – Friday, 8 a.m. – 5 p.m.

When O’Fallon voters go to the polls on Tuesday, April 7, they will have the opportunity to vote on Proposition 1, which would increase funding to the O’Fallon Police Department and road improvements.

Veterans Memorial Walk

Veterans Memorial Walk

Main Street c. 1909

Main Street c. 1909

presented by O'FallonTheatreWorks
March 20–22 & 27–29 • O'Fallon City Hall
March 20–22 & 27–29 • O'Fallon City Hall
O'Fallon
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U.S. Census 2020

Participate in the U.S. Census to help ensure your community receives federal funding for infrastructure projects and other programs. Learn more.

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Follow O'Fallon on social media

FACEBOOK ▪ @ofallonmo

INSTAGRAM ▪ @renaudcenter, @visitofallon1856

TWITTER ▪ @cityofofallon