The Jewish Community High School of the Bay is an accredited independent, college-preparatory, co-ed Jewish high school located in San Francisco, CA. Pledge 2: High Quality Instruction – JCHS is dedicated to providing high-quality instruction to all our Blue Jay students, whether a student chooses to remain with. Johns Creek Back-to-School Info Center. 2020-21 Welcome Back to JCHS! - UPDATED 9/11/2020. JCHS may refer to: Jefferson College of Health Sciences, Roanoke, Virginia, United States; Joint Center for Housing Studies, at Harvard University. The JCHS Back to School Night is Thursday, September 17 at 7 p.