Municipalities

Cities Aurora - lies partly in Kane, Kendall and Will counties Batavia - lies partly in Kane County Chicago - lies mostly in Cook County Darien Elmhurst - lies partly in Cook County Naperville - lies partly in Will County Oakbrook Terrace St. Charles - lies partly in Kane County Warrenville West Chicago Wheaton Wood Dale Villages Addison Bartlett - lies partly in Cook County Bensenville - a small part lies in Cook County Bloomingdale Bolingbrook - lies partly in Will County Burr Ridge - lies partly in Cook County Carol Stream Clarendon Hills Downers Grove Elk Grove Village - lies mostly in Cook County Glendale Heights Glen Ellyn Hanover Park - lies partly in Cook County Hinsdale - a small part lies in Cook County Itasca Lemont - lies partly in Cook and Will counties Lisle Lombard Oak Brook - lies partly in Cook County Roselle - lies partly in Cook County Schaumburg - lies mostly in Cook County Swift - unincorporated area; Bloomingdale Township Villa Park Wayne - lies partly in Kane County Westmont Willowbrook Winfield Woodridge - a small part lies in Cook and Will counties