Chain Guide serves:
The lakes and waterway of: Bluff Lake, Channel Lake, Fox Lake, Grass Lake, Lake Catherine, Lake Marie, Nippersink Lake, Petite Lake, Pistakee Lake, Spring Lake, Lower Fox River, Upper Fox River.
The towns of: Algonquin, Antioch, Crystal Lake, Fox Lake, Fox River Grove, Holiday Hills, Ingleside, Johnsburg, Lake Villa, McHenry, Port Barrington and Spring Grove