Summary:
The Chsd 99 school district in Illinois is home to two exceptional high schools, Community H S District 99 - South High School and Community High School District 99 - North High School. Both schools rank among the top 5-10% of high schools in Illinois, with North High School ranking 34th out of 698 schools and South High School ranking 60th.
The schools demonstrate consistently strong academic performance, with students significantly outperforming state averages on a variety of standardized tests, including the ACT, PreACT, and SAT. For example, in 2024-2025, 76.0% of 11th graders at North High School were proficient or better in ACT English Language Arts, compared to the state average of 51.7%. Similarly, 72.2% of 11th graders at North High School were proficient or better in ACT Mathematics, compared to the state average of 39.3%. Both schools also have excellent 4-year graduation rates of 89.0% and low dropout rates of 2.4%.
The high performance of these schools is likely due to a combination of factors, including high levels of spending per student (ranging from $23,665 to $24,460 per student) and low student-teacher ratios (13.8 to 14.5). Overall, the data indicates that the two high schools within Chsd 99 are exceptional educational institutions that are consistently delivering outstanding results for their students.
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