Columbia High School

Columbia High School is one of the close-knit senior highs in Columbia, Illinois, one of the schools within Columbia CUSD 4, with 606 students on its rolls from grades 9 through 12. By comparison, Illinois's public schools average about 834 students each, so Columbia High School sits 27% leaner than that benchmark.

Columbia CUSD 4 runs 4 schools in total, collectively educating 1,904 students. Columbia High School is one of those campuses.

Looking at the student body, Columbia High School shows that the student body is overwhelmingly White (93%); the rest consists of 4% Hispanic. That composition is broadly in line with Monroe County as a whole.

Looking at school resources, The school currently runs with 38 full-time-equivalent teachers, for a student-teacher ratio near 16.1:1. Statewide, the average ratio sits near 13.8:1, putting Columbia High School higher than the state norm the norm. About 15% of enrolled students meet the income threshold for free or reduced-price lunch, a commonly cited indicator of low-income enrollment.

On a demographically-adjusted basis, Columbia High School sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 62.8%; this one delivers 56.5%.

In the surrounding community, the surrounding county (Monroe County) shows that median household income runs about $102,880, 39% of adults hold a bachelor's degree or higher, and the poverty rate sits near 4%. In all, Monroe County runs 14 public schools (combined enrollment of about 5,006 students), of which Columbia High School is one.

Columbia Middle School is the nearest neighboring public school, about 0.2 miles from this campus. Within five miles, there are 8 other public schools. Among the 8 schools in that immediate cluster with test data (this one included), Columbia High School ranks 5th on composite proficiency, below the local average of 58.8%.

The school occupies an outer-ring site.

Over the past 7-year window. Looking back 7 years, enrollment at Columbia High School has contracted 12%, going from 685 students in 2018 to 606 in 2025. The student-to-teacher ratio fell from 19.5:1 in 2018 to 16.1:1 today.

On this page, posts here usually surface around science fair prep, picture-day reminders, and bus-route questions. Posting is open to anyone connected to the school.