Mayor – Aaron T. Shepley is the mayor of Crystal Lake. Mr. Shepley has been the mayor since May 1999. His hobbies include running, biking and drumming. He has a wife and two daughters.
City Council – The city council consists of Ellen Brady Mueller, Ralph M. Dawson, Cathy A. Ferguson, Carolyn Schofield, Brett Hopkins, and Jeffrey T. Thorsen.
City Clerk – Nick Kachiroubas is the City Clerk in Crystal Lake.