Department Contacts Directory

Department Phone Address Key Contact
Mayor's Office (618) 624-4500 ext. 8730
O'Fallon City Hall
255 S. Lincoln Ave.
O'Fallon, IL 62269
Administration (618) 624-4500
255 S Lincoln Ave
O'Fallon, IL 62269
Building & Inspections Division (618) 624-4500 ext. 4
City Hall, 2nd Floor
255 S Lincoln Ave
O'Fallon, IL 62269
City Clerk (618) 624-4500 ext. 8715
255 S. Lincoln Ave.
O'Fallon, IL 62269
City Council
Community Development Department (618) 624-4500 ext. 4
255 S Lincoln Ave
2nd Floor
O'Fallon, IL 62269
Crime Free Rental Housing Program (618) 624-9511
O'Fallon Department of Public Safety
285 N. Seven Hills Rd.
O'Fallon, IL 62269
Keith Townsend - [email protected]
Criminal Investigations Division
Economic Development Division (618) 624-4500 ext. 4
255 S Lincoln Ave
2nd Floor
O'Fallon, IL 62269
Emergency Medical Services 618-624-4545
Station #3 - 102 Oak St., Shiloh
Station #4 - 1215 Taylor Rd., O'Fallon
, IL
Finance Department (618) 624-4500
City Hall
255 S. Lincoln Ave.
O'Fallon, IL 62269
Fire Rescue (618) 624-4515
1215 Taylor Rd
O'Fallon, IL 62269
Human Resources 618-624-4500
Human Resources Office
255 South Lincoln Ave
1st Floor
O'Fallon, IL 62269
Ashley Baker
Information Technology (618) 624-4500 ext. 5
Information Technology
318 W 2nd St
O'Fallon, IL 62269
O'Fallon On Demand
O'Fallon Parks and Recreation (618) 624-0139
Katy Cavins Community Center
308 E. Fifth Street
O'Fallon, IL 62269
O'Fallon Public Library (618) 632-3783
O'Fallon Public Library
120 Civic Plaza
O'Fallon, IL 62269
Planning & Zoning Division (618) 624-4500 ext. 4
255 S Lincoln Avenue
2nd Floor
O'Fallon, IL 62269
Police Department 618-624-4545
O'Fallon Dept. of Public Safety
285 N. Seven Hills Rd.
O'Fallon, IL 62269
Public Works Department (618) 624-4500 ext. 3
City Hall
255 S Lincoln Ave.
2nd Floor
O'Fallon, IL 62269
Stormwater Program 618-624-4500 Ext.3
Street Division 618-624-4500 ext.3
Treasurer (618) 624-4500
255 S. Lincoln Ave.
O'Fallon, IL 62269
Utility Billing (618) 624-4500 ext 1
255 S. Lincoln Ave.
O'Fallon, IL 62269
Waste Management (800) 989 2783
Waste Management
7320 Hall Street
St. Louis , MO 63147