Cities included in Lake County: Round Lake Beach, Waukegan, Buffalo Grove, Mundelein, Gurnee, North Chicago, Highland Park, Vernon Hills, Zion, Grayslake, Libertyville, Lake Zurich, Lake Forest, Deerfield, Round Lake, Antioch, Lindenhurst, Wauconda, Beach Park, Fox Lake, Gages Lake, Hawthorn Woods, Lake Villa, Long Grove, Lincolnshire, Park City, Round Lake Park, Winthrop Harbor, Volo, Lake Bluff, Lake Barrington, Grandwood Park, Highwood, Kildeer, Green Oaks, Riverwoods, Deer Park, Hainesville, Wadsworth, Long Lake, North Barrington, Round Lake Heights, Venetian Village, Fox Lake Hills, Channel Lake, Knollwood, Port Barrington, Forest Lake, Tower Lakes, Lake Catherine, Bannockburn, Third Lake, Indian Creek, Mettawa, Old Mill Creek

Zip Codes included in Lake County: 60002, 60015, 60020, 60030, 60031, 60035, 60040, 60041, 60042, 60044, 60045, 60046, 60047, 60048, 60060, 60061, 60064, 60069, 60073, 60075, 60083, 60084, 60085, 60087, 60088, 60089, 60096, 60099