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Community High School District 155 Includes Four Comprehensive High Schools and One Alternate Education Campus. Serving Grades 9-12, Each Institution Has Full State of Illinois Recognition and Accreditation. All Four District 155 High Schools Ranked in the Top 12 Percent of Public High Schools Nationally by U.S. News & World Report in 2021, Which Identifies the Superior Education Our Students Receive. All Four High Schools Also Earned a Spot in the Top 100 Best High Schools in Illinois for 2021. These Recognitions Are the Results of Our Student-centered Approach at Each of Our High Schools. Newsweek Named Three High Schools as Top Stem High Schools and Niche Ranked D155 as the Best School District in Mchenry County.