Summary:
ZIP code 61011 has one elementary school, Caledonia Elementary School, serving prekindergarten through grade 5 with 449 students. The latest results show a mixed academic picture: in 2025–2026, the school was above Illinois in all-grades mathematics, 41% to 40%, and fifth-grade science, 51% to 48%, but below the state in all-grades English language arts (ELA), 51% to 56%. The most important finding is that ELA is the clearest statewide shortfall, while mathematics and science are modestly above the state.
Because it is the only school in the ZIP code, Caledonia is both the local standout and the only option in this data; there is no meaningful local top-to-bottom comparison. Against state results, its strongest latest showing was fifth-grade science, 51% proficient versus 48% statewide, a 4-point lead; its weakest was all-grades ELA, 51% versus 56%, a 6-point gap. Grade-level results add detail: ELA was 3 points above the state in grade 3 but 5 points below in grade 4 and 4 points below in grade 5. Mathematics was 6 points below the state in grade 3, then slightly above in grades 4 and 5. Chronic absenteeism was a positive distinction: 17% at Caledonia in 2025–2026, compared with 24% statewide and 26% in Belvidere CUSD 100.
Results moved away from the state in all three comparable measures, even though ELA improved slightly. Caledonia’s ELA rose 1 point from 2024–2025 to 2025–2026, while the state rose 3 points, widening the school’s shortfall by 2 points. Mathematics fell 4 points as the state rose 1, shrinking Caledonia’s lead by 5 points; fifth-grade science fell 2 points while the state rose 7, narrowing its lead by 9 points. SchoolDigger lists Caledonia at 1,015 of 1,737 schools, the 42nd percentile and 2 stars, compared with 853 of 2,056, the 59th percentile and 3 stars, the prior year. Other context includes a 13.5 student-teacher ratio and 43% free/reduced lunch eligible in 2024–2025; with only one school listed, these figures cannot be compared with local peers.
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