Summary
Lundahl Middle School enrolls 797 students in grades 6–8 in Crystal Lake, in Chicago’s northwest suburbs, and is part of Crystal Lake CCSD 47. Its 2025–2026 results show strong eighth-grade science and a sharp recovery in ELA and math over two years. The most important finding is that both ELA and math have moved from below the state proficiency rate to above it, although math remains a local weak spot.
Science is Lundahl’s clearest strength against the state, district and nearby schools: 67% of eighth-graders were proficient, compared with 52% statewide, 62% districtwide and a 61% average among seven nearby schools serving grades 6–8. Eighth-grade math was weaker: 34% were proficient, just below the state’s 35% and below the district’s 38%. Across all grades, ELA proficiency was 66%, below the nearby-school average of 68%, while math was 40%, below the nearby average of 45%. Grade-level ELA also varies: grade 8 reached 72%, while grade 7 was 58%, slightly below the district and nearly level with the state.
From 2023–2024 to 2025–2026, ELA proficiency rose 25 percentage points, to 66%, and math rose 21 points, to 40%; in the latest year, ELA was 9 points above the state and math 1 point above. SchoolDigger ranked Lundahl at the 61st statewide percentile and gave it 3 stars in 2025–2026, a middle-of-the-pack local standing despite the gains. In 2024–2025, the student-teacher ratio was 13.2, compared with a nearby-school average of 12.5; 35% of students were free/reduced lunch eligible that year. SchoolDigger’s statewide ranking for how well Lundahl serves Special Education Students fell to the 25th percentile in 2025–2026 from 64th the previous year, compared with the school’s overall 61st percentile. Its ranking for English Language Learner Students was at the 17th percentile in 2024–2025, compared with an overall 57th percentile that year.
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