Member libraries include:
Algonquin Cary Crystal Lake Des Plaines Dundee Township Ela (Lake Zurich) Evanston Fremont (Mundelein) Glencoe Glenview Highland Park Huntley Lake Forest Lake Villa Lincolnwood McHenry Niles Northbrook Park Ridge Prospect Heights Round Lake Wilmette Winnetka-Northfield Zion-Benton