Marion High School

Marion High School is one of the reasonably sized four-year high schools in Marion, Illinois, operated by Marion CUSD 2, with 1,075 students on its rolls from grades 9 through 12. By comparison, Illinois's public schools average about 834 students each, so Marion High School sits 29% bigger than that benchmark.

Marion High School is one of 7 schools operated by Marion CUSD 2, a district that serves 3,684 students overall.

Looking at the student body, Marion High School shows that White students make up the majority at 76%. The remainder looks like 9% Black, 8% multiracial, 5% Hispanic. The wider county runs roughly 89% White, putting the school's mix visibly less White than the area baseline.

On the income-and-resources front, The school lists 74 full-time-equivalent teachers, for a student-teacher ratio near 14.6:1. Statewide, the average ratio sits near 13.8:1, putting Marion High School higher than the state norm the norm. Around 48% of the student body qualifies for free or reduced-price meals, a number frequently used as a low-income enrollment indicator.

After controlling for student poverty, Marion High School tracks the demographic baseline. The model predicts 43.7% given the school's FRL share; actual proficiency is 36.6%.

In the area at large, census data for Williamson County shows median household income runs about $65,604, about 26% of the adult population holds a bachelor's degree or above, and census figures put the poverty rate at about 10%. In all, Williamson County runs 26 public schools (combined enrollment of about 9,700 students), of which Marion High School is one.

Longfellow Elem School is the nearest neighboring public school, about 0.5 miles from this campus. Within five miles, there are 5 other public schools. Ranking that nearby cluster on reported proficiency puts Marion High School at 6th of 8; the average score across the group is 50.3%.

Geographically, the school is in a town-based area.

Over the past 7-year window. Looking back 7 years, enrollment at Marion High School has changed only slightly, going from 1,082 students in 2018 to 1,075 in 2025. The student-to-teacher ratio rose from 13.4:1 in 2018 to 14.6:1 today.

On allk12, posts here usually surface around enrollment questions, classroom assignments, and PTA news. Parents, students, alumni, and staff are welcome to weigh in.