Illinois Counties including: Cook County, DuPage County, Kane County, Lake County, and McHenry County.
Serving the local townships of: Antioch, Arlington Heights, Barrington, Bolingbrook, Buffalo Grove, Carol Stream, Chicago, Des Plaines, Evanston, Fox Lake, Fox River Grove, Glenview, Grayslake, Gurnee, Harwood Heights, Hawthorn Woods, Highland Park, Hoffman Estates, Hyde Park, Island Lake, Lake Forest, Lake Zurich, Libertyville, Lincolnshire, Lincolnwood, Lombard, Long Grove, Morton Grove, Mount Prospect, Mundelein, Niles, Northbrook, Oak Park, Palatine, Park Ridge, Prospect Heights, Riverwoods, Rosemont, Round Lake, Schaumburg, Skokie, Tower Lakes, Vernon Hills, Wauconda, Waukegan, Westchester, Wheeling, Wilmette, Winnetka, Zion.