Summary:
Four K–5 elementary schools in zip code 60432 are part of Joliet PSD 86. In 2025–2026, their simple average proficiency was 34% in ELA, 19% in math, and 39% in fifth-grade science, below state results of 56%, 40%, and 48%. The results also vary widely from school to school, rather than describing one consistent area-wide experience. The most important finding is that Forest Park Individual Educational School stands far apart from the other three schools.
Forest Park led in all three measures, with 66% proficient in ELA, 34% in math, and 55% in science; its ELA and science results were 10 and 8 percentage points above the state, while math remained 6 points below. By comparison, the other three schools averaged 23% in ELA, 14% in math, and 34% in science. A O Marshall Elementary School had the lowest ELA and math results, at 16% and 12%; Sator Sanchez Elementary School had the lowest science result, at 26%. The gap between the highest and lowest results was 50 points in ELA, 22 in math, and 29 in science.
Recent changes were strongest in science: the four-school average rose 15 percentage points from 2024–2025 to 2025–2026, and every school improved. The average ELA result rose 3 points, while math fell 3 points; Forest Park, for example, gained 8 points in ELA but lost 8 in math. SchoolDigger’s 2025–2026 statewide ranking percentiles were 49th for Forest Park, 13th for Isaac Singleton Elementary School, and 2nd for Sanchez; Marshall’s latest available ranking was 15th percentile in 2024–2025. In 2024–2025, Forest Park had the highest student-teacher ratio (18.1), while Singleton had the lowest (9.9). That year, Sanchez reported 97.8% free/reduced lunch eligible, and Singleton and Marshall each reported 95.1%; Forest Park reported that all students receive free meals through Community Eligibility. These measures offer context, not explanations for school results.
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