Tri-City High School

Tri-City High School is a very small secondary school in Buffalo, Illinois, one of the schools within Tri City CUSD 1. The school hosts 154 students in grades 9 through 12. By comparison, Illinois's public schools average about 834 students each, so Tri-City High School sits 82% smaller than that benchmark.

Tri City CUSD 1 runs 3 schools in total, collectively educating 564 students. Tri-City High School is one of those campuses.

Demographically, Tri-City High School records that 90% of students identify as White, making the school strongly White-majority; the rest consists of 5% multiracial, 3% Hispanic. The wider county runs roughly 78% White, putting the school's mix noticeably more White than the area baseline.

On the resource side, Tri-City High School logs 12 full-time-equivalent teachers, putting the student-to-teacher ratio at about 12.8:1. The state averages around 13.8:1, so this campus is tighter than the state norm typical. Around 42% of the student body qualifies for free or reduced-price meals, a commonly cited indicator of low-income enrollment.

After controlling for student poverty, On a poverty-adjusted basis, Tri-City High School sits in the bottom 10% statewide. Predicted proficiency from the FRL regression is roughly 47.1%; actual is 32.7%, a gap of -14.4 points.

Zooming out to the county, Sangamon County reports that median household earnings sit near $75,357, 37% of adults hold a bachelor's degree or higher, and roughly 9% of residents live below the federal poverty line. Across Sangamon County's 77 public schools (combined enrollment of about 27,345 students), Tri-City High School is one campus in the mix.

Nearest neighbor: Tri-City Jr High School, around 0.0 miles off. 2 of the 8 nearest public schools sit inside a five-mile radius. On composite proficiency, Tri-City High School comes 8th of 9 in the immediate cluster, below the nearby-schools average of 43.9%.

The school occupies a small-town site.

Over the past 7-year window. Looking back 7 years, enrollment at Tri-City High School has expanded 11%, going from 139 students in 2018 to 154 in 2025. Over the same period, the White share ticked down from 95% to 90%. The student-to-teacher ratio widened from 9.9:1 in 2018 to 12.8:1 today.

In the discussion threads here, posts here usually surface around open house dates, ride-share offers, and field-trip permission slips. Contributors range from current parents to recent graduates and teachers.