Carbondale CHSD 165

Carbondale CHSD 165 has one school: Carbondale Community High School, serving grades 9–12 and enrolling 1,023 students. The most important academic finding is that all nine reported 2025–2026 proficiency results were below state benchmarks, with the largest shortfalls in science and grade 10 math.

There are no local schools to rank against one another. The school’s closest results to the state were its grade 11 ACT scores: ELA was 47% versus 50% statewide, math 37% versus 40%, and science 44% versus 48%. Its widest gaps were in grade 10 PreACT science, at 37% versus 48% (11 points below), and grade 9 PreACT science, at 37% versus 47% (10 points below); grade 10 math was also notably lower, at 27% versus 36%. Across the listed results, science was the weakest subject relative to the state, averaging 8 points below, compared with 5 points below in math and 4 below in ELA. Other reported measures also warrant attention: graduation was 86%, 4 points below the state, and chronic absenteeism was 30%, 6 points above it; the dropout rate was 1 point lower than the state. Because the list contains only one school, it cannot show how this school compares with local peers.

Results changed unevenly: grade 9 PreACT ELA and math each rose 6 points from 2024–2025, while grade 9 science fell 2 points; grade 10 math and grade 11 ACT ELA each fell 2 points. The average gap to the state narrowed by about 1 point across the nine matched results, despite those declines. SchoolDigger’s historical percentile rank moved from 73rd to 50th to 41st; its current listing ranks the school 524th of 738, at the 29th percentile. The school has a 14:1 student–teacher ratio, and 61% of students were free/reduced lunch eligible in 2024–2025—context about the school, not an explanation for its results.