Community High School District 155

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Register Before August 5

All students must complete the annual registration process for the 2026-27 school year. Pay before August 12 and SAVE $25 per student.

Register Now!

Register Before August 5

All students must complete the annual registration process for the 2026-27 school year. Pay before August 12 and SAVE $25 per student.

Register Now!

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Current Families

We partner with families to support their students’ educational journey, ensuring students enter with promise and leave with purpose.

Parent & Guardian Resources

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New Families

We foster belonging, strong relationships, and provide relevant, engaging coursework so every student feels known, supported, and challenged.

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July 22, 2026

Prairie Ridge Back-to-School Guide 2026-27

Back-to-School Guide Prairie Ridge High School Welcome, Wolves! Welcome to the 2026–2027 school year! This guide will help you and your student start the year off right as we prepare to welcome stu...

July 22, 2026

Crystal Lake Central Back-to-School Guide 2026-27

Back-to-School Guide Crystal Lake Central High School Welcome, Tigers! Welcome to the 2026–2027 school year! This guide will help you and your student start the year off right as we prepare to welc...

July 22, 2026

Cary-Grove Back-to-School Guide 2026-27

Back-to-School Guide Cary-Grove High School Welcome, Trojans! Welcome to the 2026–2027 school year! This guide will help you and your student start the year off right as we prepare to welcome stude...

July 22, 2026

Crystal Lake South Back-to-School Guide 2026-27

Back-to-School Guide Crystal Lake South High School Welcome, Gators! Welcome to the 2026–2027 school year! This guide will help you and your student start the year off right as we prepare to welcom...

July 21, 2026

The Next Chapter of Central Tradition Begins

A District Investment. A Community Legacy. Help Us Reach Our Community Goal For more than a century, Crystal Lake Central High School has been a place where traditions run deep, legacies are built,...

July 9, 2026

Athletic Registration for School Year 26-27

Athletic Registration for the 26/27 School year is now open. Registration must be completed on the Arbiter Registration Website PRIOR to tryouts/practices. If you have not yet registered your stude...

93%

Graduation Rate

#1

District in McHenry County

225+

Courses Offered

37

Dual Credit Offerings

$11.5M

Scholarships Earned by Class of 2025

#1

Best Teachers in McHenry County

81%

Teachers w/ Master's Degree or Higher

200+

Sports & Extracurricular Activities Offered

Career Experiences Program

Curriculum and Assessment

Multilingual Services

Register Before August 5

Register Before August 5

Upcoming Events

Latest News

Prairie Ridge Back-to-School Guide 2026-27

Crystal Lake Central Back-to-School Guide 2026-27

Cary-Grove Back-to-School Guide 2026-27

Crystal Lake South Back-to-School Guide 2026-27

The Next Chapter of Central Tradition Begins

Athletic Registration for School Year 26-27

93%

#1

225+

37

$11.5M

#1

81%

200+

Homepage

Register Before August 5

Register Before August 5

Upcoming Events

Latest News

Prairie Ridge Back-to-School Guide 2026-27

Crystal Lake Central Back-to-School Guide 2026-27

Cary-Grove Back-to-School Guide 2026-27

Crystal Lake South Back-to-School Guide 2026-27

The Next Chapter of Central Tradition Begins

Athletic Registration for School Year 26-27

93%

#1

225+

37

$11.5M

#1

81%

200+