Sycamore High School

Sycamore High School is a mid-sized senior high in Sycamore, Illinois, overseen by Sycamore CUSD 427. The school educates 1,161 students in grades 9 through 12. Compared to the state average of about 834 students per school, that is 39% bigger than typical.

Sycamore CUSD 427 runs 7 schools in total, collectively educating 3,720 students. Sycamore High School is one of those campuses.

On the student-mix side, Sycamore High School logs that the largest single group is White, at 79% of enrollment. The remainder is composed of 12% Hispanic, 3% multiracial, 3% Black.

Looking at school resources, Staff filings list 75 full-time-equivalent teachers, which works out to roughly 15.6:1 students per teacher. The state averages around 13.8:1, so this campus is higher than the state norm typical. Around 25% of the student body qualifies for free or reduced-price meals, a number frequently used as a low-income enrollment indicator. That share is below DeKalb County's rate of about 48%.

On a residual basis (actual vs predicted given the student mix), Sycamore High School tracks the demographic baseline. The model predicts 57.2% given the school's FRL share; actual proficiency is 46.8%.

Zooming out to the county, census data for DeKalb County shows median household income runs about $70,724, roughly 33% of adults have completed at least a four-year degree, and roughly 10% of residents live below the federal poverty line. In all, DeKalb County runs 43 public schools (combined enrollment of about 16,328 students), of which Sycamore High School is one.

West Elem School is the nearest neighboring public school, about 0.4 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 Sycamore High School at 4th of 9; the average score across the group is 42.8%.

The school occupies an outer-ring site.

Trend over the last 7 years. Over the past 7-year window, the student count shrank 5%: 1,221 students in 2018 compared to 1,161 in 2025. Over the same period, the White share edged down from 85% to 79%. Class-load math has tightened: from 17.9:1 in 2018 to 15.6:1 in 2025.

On this page, members of the Sycamore High School community share and discuss open house dates, ride-share offers, and field-trip permission slips. Contributors range from current parents to recent graduates and teachers.