The City of Crystal Lake is the largest community of McHenry County, with a population of 40,743. Crystal Lake is a city with a rich history, rewarding quality of life and tremendous community spirit. With its high quality retail, residential and service sector development, Crystal Lake has been a major economic engine in Northeastern Illinois for the past decade.
Located 50 miles northwest of Chicago, Crystal Lake residents enjoy the many employment, cultural, and recreational opportunities of a major metropolitan city, yet live in a pleasant, small-town atmosphere.