Summary:
Clinton, Illinois, has five schools spanning prekindergarten through grade 12: three elementary schools, one junior high and one high school. In 2025–2026, Clinton Elementary School scored above state averages in all-grades ELA and math, while Clinton Junior High School was above average in ELA but well below in math; Clinton High School had a bright spot in 10th-grade ELA but below-state results in all three reported 11th-grade ACT subjects. The most important takeaway is that ELA is generally stronger than math, with middle- and high-school math the clearest concern.
Clinton Elementary stands out most in its reported all-grades IAR results: ELA was 62% versus 56% statewide, and math was 41% versus 40%. Its grade-level results vary sharply, though: third-grade math was 65%, 16 points above the state, while fifth-grade math was 15%, 21 points below. Clinton Junior High had the weakest reported all-grades math result, 22%, 18 points below the state; its ELA was 58%, about 1 point above. At Clinton High, 10th-grade ELA was 56%, 2 points above the state, while 11th-grade ACT results trailed by 13 points in ELA, 17 in math and 16 in science. Lincoln Elementary School and Douglas Elementary School have no supplied test scores, and comparisons across school levels are not like-for-like.
Recent changes are mixed: from 2024–2025 to 2025–2026, Clinton Elementary’s all-grades ELA rose from 57% to 62%, while math edged down from 43% to 41%; Clinton Junior High improved in both ELA, from 51% to 58%, and math, from 19% to 22%. SchoolDigger’s rank percentiles nevertheless fell from 64 to 53 for Clinton Elementary, 50 to 29 for Clinton Junior High, and 37 to 30 for Clinton High. Student-teacher ratios at those three schools ranged from 10.9 to 12.5. In 2024–2025, free/reduced lunch eligible shares were 54% at Clinton Elementary, 54% at Clinton Junior High and 52% at Clinton High; these figures provide context, not an explanation for achievement differences.
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