McHenry County Illinois Cities/Towns – Algonquin, Bull Valley, Cary, Crystal Lake, Greenwood, Harvard, Hebron, Holiday Hills, Island Lake, Johnsburg, Lake In The Hills, Lakewood, Marengo, McCullom Lake, McHenry, Oakwood Hills, Pistakee Highlands, Prairie Grove, Richmond, Spring Grove, Trout Valley, Union, Wonder Lake, Woodstock (County Seat)
