School Information

Crystal Lake Central is ranked among the best public high schools nationally and in the state of Illinois. Most recently, U.S. News & World Report named it among the nation's best high schools in 2019. Newsweek named Central as a Top STEM High School, and Niche ranked District 155 as the best district in McHenry County. Central offers students a comprehensive 9-12 grade education. Students have the opportunity to choose from more than 200 courses including Advanced Placement®, dual credit, Mobile App Development, Project Lead the Way (PLTW), and Virtual Enterprises International (VEI).

In athletics, the Crystal Lake Central Tigers compete in the Fox Division of the Fox Valley Conference. The school has captured state titles in girls' volleyball (2007), competitive dance (2013), and wrestling (2016).

Crystal Lake Central offers students 33 clubs and activities and several opportunities in performing and fine arts.

Crystal Lake Central opened in 1924 as Crystal Lake Community High School and is the oldest high school in District 155. Central has a rich history and several proud alumni. In the 1930s, Crystal Lake Community High School produced Charlie Behan, a professional football player and a World War II hero who was awarded the Navy Cross for his acts of valor during the Battle of Okinawa in May 1945. Central also counts ABC 7 Chicago Anchors/Reporters Rob Elgas and Mark Rivera and, Neon Trees' drummer Elaine (Doty) Bradley.

Crystal Lake Central is located approximately 45 miles north­west of Chicago, and  serves Crystal Lake and Lakewood.


2019 U.S. News & World Report - Best High Schools
2019 Newsweek - Top STEM High School

Crystal Lake: 1,477
District 155: 5,973

D155 Average Class Size: 20

Teachers with a 
Master's Degree or Higher
: 86%

4-Year Graduation Rate
Crystal Lake Central:
District 155: 96%
State: 86%

Scholarships earned in 2018-2019: $3,246,233

Students continuing their education: 88% 

2018-2019 SAT Average
Crystal Lake Central ELA: 509.1
Crystal Lake Central Math: 514.1

District 155 ELA: 528.9
District 155 Math: 538.1

State ELA: 497.5
State Math: 497

District 155 Dual Credit Courses & Enrollment

Autos II                                      18
     -McHenry County College
Advanced Culinary Arts Commercial                              11
     -McHenry County College  
Calculus                                     7
     - University of Illinois
Computer Business App.       313
      -McHenry County College
Culinary Arts II Commercial    26
      -McHenry County College
Marketing                                   103
      -McHenry County College
Music Appreciation                   12
      -McHenry County College
Spanish IV                                  330
      -McHenry County College