Percy Julian Middle School
Oak Park, IL · Middle School · Grades 6-8
Percy Julian Middle School is a middle school in Oak Park, IL with 921 students enrolled and a 72% proficiency rate. Part of Oak Park ESD 97. NCES data from the U.S. Department of Education.
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About This School
Percy Julian Middle School is a middle school located in Oak Park, Illinois. The school serves 921 students in grades 6-8. The student-to-teacher ratio is 12.4:1.
According to EDFacts assessment data, 72% of students meet grade-level proficiency standards in combined math and reading.
19% of students qualify for free or reduced-price lunch.
Percy Julian Middle School is part of the Oak Park ESD 97 in Illinois.
How This School Compares
Percy Julian Middle School has 921 students enrolled, making it larger than the average school in Oak Park ESD 97 (555 students). Its 72% proficiency rate is 8 percentage points above the district average of 64%. Compared to the Illinois state average of 48%, the school performs 24 points higher. With a 12.4:1 student-teacher ratio, it offers smaller class sizes than the national average.
Frequently Asked Questions
Percy Julian Middle School has 921 students enrolled in grades 6-8. The student-to-teacher ratio is 12.4:1.
According to EDFacts data, 72% of students at Percy Julian Middle School meet grade-level proficiency standards in combined math and reading assessments.
Percy Julian Middle School is part of the Oak Park ESD 97 in Oak Park, Illinois. You can view all schools in this district on the district page.
All data on this page comes from the National Center for Education Statistics (NCES) Common Core of Data and EDFacts assessment results. These are official federal datasets published by the U.S. Department of Education.
School profiles are built from NCES directory data and EDFacts assessment results. Proficiency rates reflect combined math and reading performance. Graduation rates are reported for high schools with available data.
For this entity, the underlying data on this page comes from NCES Common Core of Data and EDFacts. The breakdown above is the federal record; the paragraphs below add the per-entity context that makes the headline numbers usable for a real decision rather than just a data lookup.
Every number on this page links back to NCES Common Core of Data and EDFacts; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. public schools and districts with similar size, similar exposure, or similar geography — not the national-level summary alone.
Source: NCES Common Core of Data, 2026.