Somonauk High School

Set in Somonauk, Illinois, Somonauk High School is an one-room-style secondary school, part of Somonauk CUSD 432. It instructs 224 students across grades 9 through 12. Compared to the state average of about 834 students per school, that is 73% leaner than typical.

Somonauk CUSD 432 comprises 3 schools with combined enrollment of 771 students; Somonauk High School is among them.

Looking at the student body, Somonauk High School shows that the student body is overwhelmingly White (85%). Beyond that, the school lists 11% Hispanic. By comparison, DeKalb County as a whole is about 74% White, so the school skews meaningfully more White than its surroundings.

In terms of school funding signals, Staff filings list 21 full-time-equivalent teachers, which works out to roughly 10.7:1 students per teacher. The state averages around 13.8:1, so this campus is tighter than the state norm typical. Roughly 41% of students at Somonauk High School qualify for free or reduced-price lunch, often used as a Title I proxy.

On a residual basis (actual vs predicted given the student mix), Somonauk High School performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 47.8%, the actual is 50.6%, a residual of +2.9 points.

Around the school, the surrounding county (DeKalb County) records that the typical household earns roughly $70,724 per year, 33% of adults hold a bachelor's degree or higher, and the poverty rate sits near 10%. In all, DeKalb County runs 43 public schools (combined enrollment of about 16,328 students), of which Somonauk High School is one.

Somonauk Middle School is the nearest neighboring public school, about 0.0 miles from this campus. 8 of the 8 nearest public schools sit inside a five-mile radius. Ranking that nearby cluster on reported proficiency puts Somonauk High School at 6th of 9; the average score across the group is 54.7%.

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

Looking at the recent track record. Looking back 7 years, enrollment at Somonauk High School has shrank 17%, going from 271 students in 2018 to 224 in 2025. Over the same period, the White share declined from 92% to 85%. Class-load math has pulled in: from 15.1:1 in 2018 to 10.7:1 in 2025.

On the community side, the page collects discussion, questions, and updates around science fair prep, picture-day reminders, and bus-route questions. Contributors range from current parents to recent graduates and teachers.