Quincy Sr High School

Located at 3322 Maine St, in Quincy, Illinois, Quincy Sr High School is an expansive high school that enrolls 1,847 students (grades 9 through 12), operated by Quincy SD 172. Compared to the state average of about 834 students per school, that is 121% above typical.

Quincy SD 172 comprises 8 schools with combined enrollment of 6,264 students; Quincy Sr High School is among them.

For racial and ethnic makeup, Quincy Sr High School lists that White students make up the majority at 76%. Beyond that, the school reports 10% multiracial, 7% Black, 5% Hispanic. That is visibly less White than the county at large, where the share is closer to 91%.

Looking at school resources, Staff filings list 99 full-time-equivalent teachers, which works out to roughly 18.7:1 students per teacher. That figure is higher than the state norm's 13.8:1 average. An estimated 55% of students are eligible for free or reduced-price lunch, often used as a Title I proxy.

On a demographically-adjusted basis, Quincy Sr High School performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 39.7%, the actual is 38.6%, a residual of -1.1 points.

Across the wider county, ACS estimates for Adams County put median household income runs about $66,220, 28% of adults hold a bachelor's degree or higher, and the poverty rate sits near 9%. In all, Adams County runs 23 public schools (combined enrollment of about 8,717 students), of which Quincy Sr High School is one.

Nearest neighbor: Thomas S Baldwin Elem Sch, around 0.2 miles off. 7 of the 8 nearest public schools sit inside a five-mile radius. Among the 8 schools in that immediate cluster with test data (this one included), Quincy Sr High School ranks 3rd on composite proficiency, higher than the local average of 36.9%.

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

Looking at the recent track record. Looking back 7 years, enrollment at Quincy Sr High School has expanded 5%, going from 1,753 students in 2018 to 1,847 in 2025. The White share of enrollment edged down from 82% to 76% over that span. The student-to-teacher ratio rose from 17.3:1 in 2018 to 18.7:1 today.

On allk12, members of the Quincy Sr High School community share and discuss fundraisers, lost-and-found posts, and report-card season. Contributors range from current parents to recent graduates and teachers.