Enrollment
1,847
Illinois · 2024-25 NCES data
High school (grades 9-12) · Quincy, IL
Federal NCES profile for Quincy Sr High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 44/100.
The verdict
Quincy Sr High School earns 44/100 on the Resource Investment Index, with class sizes larger than 96% of Illinois schools. It is also one of the largest schools in Illinois.
Quincy Sr High School has class sizes larger than 96% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Quincy Sr High School ranks #7 of 8 public schools in Quincy, IL.
NCES ID 173300005053 Verify on NCES CCD record →
Enrollment
1,847
Illinois · 2024-25 NCES data
Teachers (FTE)
97.0
Federal CCD staff survey
Students per teacher
19.8:1
vs 14:1 Illinois avg
+41% vs state
How Quincy Sr High School compares with Illinois and U.S. medians
Larger classes than state median
19.8:1 - 5.8 above the Illinois state median of 14:1, indicating larger average class loads than typical schools in the state.
Quincy Sr High School is a large high school in Quincy, Illinois, enrolling 1,847 students.
Class loads run heavy: 19.8:1 is larger than about 96% of Illinois schools and 41% above the 14:1 state mean, so each teacher carries more students than is typical.
By headcount it is one of the larger campuses in Illinois, bigger than 97% of state schools at 1,847 students.
Its Resource Investment Index sits near the middle of the pack among 3,845 scored Illinois schools.
Its student body is led by White (76%) and Two or More (10%) (diversity index 40/100).
On the academic-pipeline side it reports 15 Advanced Placement courses.
Counselor coverage is strong, about 231 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 50.1% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Quincy Sd 172 spends $11,626 per pupil, 32% below the Illinois average, a leaner-resourced district than most.
The federal civil-rights collection also records 1 expulsion at this campus for 2021-22.
Quincy Sd 172 also operates Quincy Jr High School (1,295 students) and Lincoln-Douglas Elementary School (588 students) alongside Quincy Sr High School.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
Quincy Sr High School on the metrics families compare, against Illinois and U.S. means.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 19.8:1 | ▲ 41% | 14:1 | 15.7:1 |
| Enrollment | 1,847 | top 3% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Largest group: White at 76.3% of enrollment.
Simpson diversity index - at 40.0, Quincy Sr High School is about as mixed as the Illinois school average of 38.9.
District-wide per-pupil expenditure for Quincy Sd 172, which includes Quincy Sr High School.
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Quincy Jr High School | Smaller | No free-lunch data | Lower S:T ratio |
| Lincoln-Douglas Elementary School | Smaller | No free-lunch data | Lower S:T ratio |
| Thomas S Baldwin Elem Sch | Smaller | No free-lunch data | Lower S:T ratio |
| Colonel George Iles Elem Sch | Smaller | No free-lunch data | Lower S:T ratio |
| Sarah Atwater Denman Elem | Smaller | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Quincy Sr High School's own figures; each column derives from NCES Common Core of Data.
Next steps
Verify locally before acting on Quincy Sr High School's federal record.
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Quincy Sr High School has 1,847 students enrolled. It is a high school in Quincy, IL.
The student-teacher ratio at Quincy Sr High School is 19.8:1, which is 41% higher than the Illinois average of 14:1 and 26% higher than the national average of 15.7:1.
The largest demographic group at Quincy Sr High School is White at 76.3% of enrollment, in Quincy, IL.
Quincy Sr High School has a Resource Investment Index of 44/100 (typical reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Quincy Sr High School ranks #7 of 8 public schools in Quincy, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Quincy on the city page.
Quincy Sr High School earns 44/100 on the Resource Investment Index, with class sizes larger than 96% of Illinois schools. It is also one of the largest schools in Illinois. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
Besides Quincy Sr High School, Quincy Sd 172 also operates Quincy Jr High School (1,295 students), Lincoln-Douglas Elementary School (588 students), and Thomas S Baldwin Elem Sch (564 students). See the Quincy Sd 172 district page for the complete list.