Mercer County, website

Residents of Mercer County in Illinois, who need to contact government officials, such as the Sherrif, the County Clerk, or the Fire Department, will find the necessary contact details in this phonebook directory. Concerned persons should note that the phone numbers for these county offices start with area code 309.

Sheriff’s Office and Police Department

906 SW 3rd St., Aledo, IL  61231

Phone: (309) 582-5194

Email: [email protected]

Health Department

305 NW 7th St., Aledo, IL 61231

Phone: (309) 582-3759

Circuit Clerk

100 S. E. Third Street
Aledo, IL 61231

Phone: (309) 582 7021

Human Services Department

1245 South Main Street
Monmouth, IL 61462

Phone: (309) 734-2159
Fax: (309) 734-6075

Mercer County Jail

906 SW 3rd St.
Aledo, IL  61231

Phone: (309) 582-5020

Emergency Management

305 NW 7th St., Aledo, IL, US 61231

Phone: (309) 582-3759

Fire Department

202 NE 2nd Street, Aledo, IL 61231

Phone: (309) 582-2208

Department of Education

1002 SW 6th Street
Aledo, Illinois 61231
Phone: (309) 582-2238

Tax Department

100 SE Third Street
Aledo, IL 61231

Phone: (309) 582-2524
Fax: (309) 582-7022