Sullivan CUSD 300

Sullivan CUSD 300 has three schools serving prekindergarten through grade 12: Sullivan Elementary School (PK–5), Sullivan Middle School (6–8), and Sullivan High School (9–12). Results show strengths as well as differences by grade and subject. In 2025–26, elementary and middle were both above the state in all-grades ELA, but below it in math: ELA was 58% and 60%, compared with 56% statewide; math was 35% and 35%, compared with 40%. The clearest shared academic concern is K–8 math, particularly elementary fifth grade.

Sullivan Middle School led elementary in all-grades ELA by 3 percentage points, at 60% versus 58%; both exceeded the state, by 4 and 1 points, respectively. Sullivan Elementary School was narrowly ahead in all-grades math, 35% to 35%, but both schools were about 5 points below the state. Elementary fifth-grade results diverged sharply: science was 63%, 15 points above the state, while math was 19%, 17 points below. At Sullivan High School, grade 10 stood out above state results in ELA, math and science by 15, 7 and 15 points. Grade 11 ACT results were below the state in all three subjects, including science by 16 points.

Recent changes were uneven: elementary all-grades ELA fell 10 points and math fell 8 points from 2024–25; middle ELA and math each rose 1 point. High school grade 10 results rose, while grade 9 and grade 11 results declined in all three subjects. SchoolDigger ranked the high school at the 62nd percentile in 2025–26, compared with the elementary school at the 47th and middle school at the 44th; these are rankings, not proficiency scores. In 2024–25, free/reduced lunch eligible shares were 51% at elementary, 47% at middle and 44% at high school. Student–teacher ratios were 18.4, 16.3 and 14.9, respectively. Chronic absenteeism was below the state rate at all three schools, ranging from 10% to 15% compared with 24% statewide.