Crystal Lakes is a census-designated place (CDP) in Clark County, Ohio, United States.

It is part of the Springfield, Ohio Metropolitan Statistical Area.

It is bordered on the west by the unincorporated community of Park Layne.

24.9% of all households were made up of individuals, and 7.1% had someone living alone who was 65 years of age or older.

In 2008 the Bethel Township Board of Trustees received a $45,000 block grant from Clark County's commissioners for the construction of a small parking lot and gazebo.