The city of Crystal Lake is located in the county of McHenry. It covers a total area of 49.1 sq. km. Economy of the city revolves around industries involved in adhesives, aviation, arts and crafts, automotive, finance, construction, dairy, information technology, courier, pharmaceuticals, wholesale fabrics, farm equipments, industrial and commercial machinery, oil and lubrication and real estate. Commercial spaces are utilized by parks, recreation centers, campgrounds, road side services, service stations, facilities for truck repairing services and youth organization centers.