The top reported proficiency rate is 90% in English language arts. The lowest is 78% in Math.
Original Research by School Decision on Kennedy Junior High School
Kennedy Junior High School in Lisle is a mid-sized sixth through eighth grade school serving students from Naperville CUSD 203. The school sits in a residential, mixed-use suburb west of Chicago that blends established neighborhoods with corporate corridors and a revitalized downtown near the Morton Arboretum.
The school's test data shows solid academic performance. In English language arts, proficiency rates for the grades that were tested ranged from strong middle grades to very strong eighth grade. In mathematics, proficiency remained above the midline across the grades tested, though it dipped slightly in sixth grade before climbing again in seventh. Science proficiency in eighth grade was measured and came in at a respectable level. Participation rates across tested grades and subjects were high, suggesting reliable assessment data. The school's overall proficiency index places it in the top quartile relative to districts in DuPage County.
The school draws from a student body that is diverse in race and ethnicity. Asian and white students make up a majority of the enrollment, with substantial representation of students identifying as two or more races, Hispanic, and smaller populations of Black students. The demographic composition reflects Lisle's character as an affluent suburban community, and families choosing this school enter a peer group with that profile.
The enrollment is roughly comparable in size to a typical middle school for its grade band, distributed across three grades. Data on free-and-reduced-price lunch eligibility, English learner status, and special education were not available, making it harder to assess the full socioeconomic and academic-needs picture.
Lisle itself is an established suburb with strong civic and economic anchors. The Metra BNSF station serves as a transit hub, the library and park system are well-resourced, and the Morton Arboretum sits nearby. The housing market is active and moderately valued; families here typically own homes. The community is in the midst of infill redevelopment aimed at adding downtown housing and population to support local retail and restaurants.
The district, Naperville CUSD 203, is currently undergoing notable curriculum changes. It has invested in a comprehensive K-12 literacy program overhaul, restructured junior high electives, and expanded English learner services across middle and high schools. The district approved new career-focused courses for high school, including a Project Lead the Way biomedical science pathway with college credit. These changes suggest an active, evolving instructional environment. The district has also proposed a more substantial redesign of the school day involving block scheduling and longer school days, though that proposal has faced community debate and was postponed, now targeted for the 2026-27 school year.
State testing data for grades three through five were not available for this school. Kennedy serves grades six through eight, so these gaps reflect the grades the school does not serve rather than missing reporting. A parent may want to contact the school directly about how it approaches curriculum continuity from elementary and progression to high school, and about how the district's current initiatives around literacy instruction and course expansion are being implemented at the middle school level.
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