Summary:
ZIP code 60435 has seven K–5 elementary schools: six in Joliet PSD 86 and Crystal Lawns in Plainfield School District 202. In 2025–2026, the schools averaged 36% proficiency in all-grades ELA, 24% in math and 35% in fifth-grade science among schools with reported results—20, 16 and 12 percentage points below state rates, respectively. The most important takeaway is that results vary sharply by school, with Crystal Lawns Elementary School well ahead overall while several Joliet schools are far below state results.
Crystal Lawns led the area with 65% proficiency in ELA and 63% in fifth-grade science; its 39.3% math rate was just below the state’s 39.6%. Thomas Jefferson Elementary School was the strongest Joliet school, at 48% in ELA and 35% in math, and had a 40% fifth-grade science rate. At the other end, Farragut Elementary School had the lowest ELA and math results—24% and 13%—and the lowest reported science result, 17%. Farragut’s rates were 32, 27 and 30 points below state results in those subjects.
Average ELA proficiency rose 6 points between 2024–2025 and 2025–2026, and comparable reported science results rose 10 points; math gained 1 point, matching the state’s increase, so the average math gap barely changed. Progress was uneven: Crystal Lawns’ math rate fell 6 points even as its ELA and science results improved. SchoolDigger ranked Crystal Lawns at the 56th percentile with 3 stars, versus the 33rd percentile and 2 stars for Thomas Jefferson and the 2nd percentile for Farragut. All seven schools reported free/reduced lunch eligible figures for 2024–2025; the six Joliet schools ranged from 94% to 96%, while Crystal Lawns was at 48%. Student–teacher ratios also differ: Thomas Jefferson had 8.4 students per teacher, compared with 19 at Pershing Elementary School. Carl Sandburg Elementary’s science result and some grade-level results are suppressed, so those comparisons are unavailable.
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