Summary:
Zip code 61401 has one high school, Galesburg Senior High School, serving grades 9–12 in Galesburg. It enrolls 1,158 students, so families have no other high school in this list to compare it with. In 2025–2026, all nine reported subject-and-grade proficiency results were below the corresponding state results, making that the clearest overall finding for this area.
The school’s strongest result relative to the state was grade 11 ELA: 44% proficient, 6 points below the state. Its largest gap was grade 10 science, at 31% compared with 48% statewide, or 18 points below; grade 10 math was also far behind, at 19% versus 36%, a gap of 18 points. The highest individual result was grade 9 ELA at 48%, while the lowest was grade 10 math at 19%. Across the three reported grades, average gaps were 12 points below the state in ELA, 15 in math and 15 in science, so ELA was comparatively stronger, though still behind.
Recent results show a particular concern in grade 10: from 2024–2025 to 2025–2026, scores fell 8 points in ELA, 7 in math and 13 in science, while grade 9 ELA and math improved by 3 and 9 points. Across the two years, the average state gap widened in all three subjects, most in science, by 4 points. SchoolDigger’s ranking percentile also declined from 48th in 2023–2024 to 25th in 2025–2026, and its latest rating was 1 star, down from 2 stars in each of the prior two years. For context, 70% of students were free/reduced lunch eligible in 2024–2025, and the student-teacher ratio was 14.7:1 that year; neither figure explains the test results.
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