Carterville High School

As a small 9-12 campus in Carterville, Illinois, Carterville High School caters to 668 students from grades 9 through 12, overseen by Carterville CUSD 5.

Carterville High School is one of 4 schools operated by Carterville CUSD 5, a district that enrolls 2,162 students overall.

In terms of who attends, Carterville High School shows that 80% of the student body identifies as White. Other groups include 8% Hispanic, 5% multiracial, 4% Asian, 3% Black. The wider county runs roughly 89% White, putting the school's mix meaningfully less White than the area baseline.

Looking at the economic backdrop, On paper, Carterville High School has 39 full-time-equivalent teachers, translating to a class-load average of around 17.1:1. Statewide, the average ratio sits near 13.8:1, putting Carterville High School higher than the state norm the norm. An estimated 43% of students are eligible for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator. Set against Williamson County (around 54%), the school's rate is noticeably below typical.

With demographic context factored in, Carterville High School sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 46.5%; this one delivers 54.7%.

Across the wider county, ACS estimates for Williamson County put median household income runs about $65,604, roughly 26% of adults have completed at least a four-year degree, and the poverty rate sits near 10%. Carterville High School is one of 26 public schools in Williamson County (combined enrollment of about 9,700 students).

Tri-C Elementary School is the nearest neighboring public school, about 0.2 miles from this campus. Counting just inside five miles, 5 other public schools cluster around Carterville High School. Among the 8 schools in that immediate cluster with test data (this one included), Carterville High School ranks 4th on composite proficiency, above the local average of 50.4%.

The campus sits in a town-based setting.

Five-year trend. Over the past 7-year window, the student count rose 10%: 609 students in 2018 compared to 668 in 2025. Over the same period, the White share edged down from 86% to 80%. The student-to-teacher ratio pulled in from 20.0:1 in 2018 to 17.1:1 today.

Within the allk12 community for this school, members of the Carterville High School community share and discuss sports schedules, lunch menu changes, and school spirit week. Anyone with firsthand experience at this school can post or comment.