Summary:
ZIP code 60518 has three schools serving preschool through grade 12: Earlville Elementary School (253 students, K–8), Harding Grade School (130 students, PK–4), and Earlville Junior/Senior High School (97 students, grades 9–12). Results vary by grade and subject, and the high school’s graduation rate contrasts with its test results. The clearest elementary difference is in math: Harding’s 2025–2026 all-grades proficiency was 67%, compared with 37% at Earlville Elementary, a 30-point gap.
Harding stands out in math, scoring 28 points above the state’s 40%; Earlville Elementary was 2 points below the state. ELA results were more mixed: both schools were below the state’s 56% overall, but Harding led in third grade, while Earlville led in fourth grade by 12 points (62% versus 50%). Earlville Elementary’s clearest low result was eighth-grade ELA at 36%, 27 points below the state. At the high school, 11th-grade ACT and 10th-grade PreACT results were above state results in all reported subjects, by 5 to 14 points, but its 77% graduation rate was 13 points below the state’s 90%.
Elementary math improved overall, while ELA did not keep pace with the state: the two schools’ equally weighted math average rose from 50% to 52% between 2024–2025 and 2025–2026, widening its lead over the state from 11 to 13 points; the ELA average rose from 47% to 48%, while the state rose from 53% to 56%. SchoolDigger percentile rankings also moved differently: Earlville Elementary rose from 45 to 54, Harding declined from 69 to 63, and the high school rose from 29 to 73 after reaching 79. Student-teacher ratios were 10.1 at Earlville Elementary, 14.4 at Harding, and 7.5 at the high school. For 2024–2025, free/reduced lunch eligible shares were 45%, 36%, and 38%, respectively; these are contextual measures, not explanations of school results.
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