O'Fallon City Hall
255 South Lincoln Avenue
O'Fallon, IL 62269
Phone: 624-4500
Fax: 624-4508
O'Fallon City Hall is officially open Monday through Friday, from 8:00 am to 5:00 pm.
City Hall is closed according to the following holiday schedule:
2009 Holidays
New Year's Day, Thursday, January 1
M. L. King Jr.'s Birthday, Monday, January 19
Presidents Day, Monday, February 16
Memorial Day, Monday, May 25
Independence Day, Saturday, July 4
Labor Day, Monday, September 7
Columbus Day, Monday, October 12
Thanksgiving, Thursday, November 26
Christmas, Friday, December 25
Directions to O'Fallon City Hall:
 Traveling East on Hwy 64 towards Louisville, take the W US-50 exit towards O'Fallon, exit #14.
Turn left onto Highway 50, and remain on Highway 50 for .8 miles.
Turn left onto Lincoln Avenue, and drive four more blocks.
City Hall will be the large red brick building on the left.
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