Summary:
Zip code 61085 has one high school, Stockton Senior High School, serving grades 9–12, so there is no other local high school for comparison. In 2025–2026, its graduation rate was 92%, above the state’s 90%, and chronic absenteeism was 13%, below the state’s 24%. The most important finding is that results differ sharply by grade: English language arts (ELA) was well above the state in grades 9 and 11, but far below it in grade 10.
Within Stockton Senior High School, the strongest current results were ELA: grade 11 reached 67%, 17 percentage points above the state, and grade 9 reached 73%, 11 points above. The weakest were grade 10 ELA, at 32% versus 54% statewide, and grade 10 science, at 30% versus 48%—gaps of 22 and 19 points below the state. Grade 9 science was close to the state, at 48% versus 47%, while grade 11 science was 41% versus 48%. Grade 9 math was 41%, 1 point below the state; the school’s grade 10 and grade 11 math figures were suppressed. As the only listed school, Stockton is highest and lowest by default; these are grade-level differences, not peer-school rankings.
The clearest recent concern is the drop in grade 10 results: from 2024–2025 to 2025–2026, ELA fell 26 points, from 58% to 32%, and science fell 20 points, from 50% to 30%. Other results improved: grade 11 ELA rose 6 points, grade 9 math rose 8, and grade 9 science rose 13. SchoolDigger’s statewide ranking also fell, from 55 of 697 schools (92nd percentile) in 2023–2024 to 288 of 620 (54th percentile) in 2025–2026. For context, Stockton enrolled 170 students and had an 11.8 student-teacher ratio in 2024–2025; 41% of students were free/reduced lunch eligible that school year. These figures describe the school, but the available data do not show whether they are related to its results.
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