The top reported proficiency rate is 81% in Science. The lowest is 65% in Math.
Original Research by School Decision on Isu Laboratory Schools
ISU Laboratory Schools is a district serving pre-kindergarten through grade twelve students in McLean County, Illinois. The schools operate as university laboratory facilities affiliated with Illinois State University, funded through direct state appropriation rather than local property tax.
The district enrolls a moderate student population spread fairly evenly across grade bands. Elementary enrollment is small, with single classrooms at each grade level kindergarten through eighth. The high school carries a larger share of the overall enrollment. The student body is predominantly white, with smaller Asian, Hispanic, two-or-more-races, and Black populations represented. Free-or-reduced-price lunch data was not available.
On state assessments administered in the most recent school year, the district's overall proficiency index places it in the top quartile among McLean County districts. The pattern across grades and subjects reveals uneven performance. In elementary mathematics, third-grade proficiency sits around the midpoint while fourth grade performs stronger and fifth grade recedes somewhat; sixth grade math proficiency drops notably. English language arts tracks higher than math in the elementary years, with solid performance in grades three through five. Middle school shows marked improvement: seventh and eighth grade both post strong proficiency rates in both math and ELA. Science proficiency data was limited to grades five and eight; both years showed solid performance, with eighth grade notably strong. Test participation rates were consistently high across all grades and subjects.
Chronic absenteeism is lower than the median among county districts, positioning the school in the top quartile on that metric. No four-year graduation rate was reported, likely because the district's smallest senior class size and specific data reporting thresholds may limit separate graduation statistics for this small, specialized setting.
The district is currently navigating structural changes. Metcalf School has begun a planned multi-year enrollment expansion, adding a third kindergarten classroom and new staff annually as that cohort advances through grades. District leaders framed this as part of an effort to increase student diversity. Some current parents have voiced concerns that the growth could reduce class sizes and diminish the small-school character the lab schools have historically offered.
Staff representation also shifted recently. For the first time in decades, employees at both University High School and Metcalf School organized and were certified as the Lab School Education Association. Union negotiations are underway, and the outcome will shape staffing, compensation, and working conditions going forward.
On the facilities front, a replacement building for the aging Metcalf facility has been placed on Illinois State University's state capital priority list, though funding has not yet been secured. The existing structure has been flagged as outdated for years. Any replacement remains a long-range prospect but reflects official intention to modernize the elementary campus.
Prospective families should understand that ISU Laboratory Schools operate as university teaching institutions, which shapes their mission and character. The small class sizes and intimate environment have been defining features, though the ongoing enrollment expansion and unionization represent material shifts in the school's operating context and scale.
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