Enrollment
1,660
Pennsylvania · 2024-25 NCES data
High school (grades 9-12) · Canonsburg, PA
Canon-Mcmillan Shs
Federal NCES profile for Canon-Mcmillan Shs, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 47/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 420489004217
👥 S:T ratio 25
🌟 Gifted program 70
🎓 Counselors 34
📋 Attendance 61
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Canon-Mcmillan Shs earns 47/100 on the Resource Investment Index, with class sizes larger than 96% of Pennsylvania schools. It is also one of the largest schools in Pennsylvania.
- #4 of 6
- public schools in Canonsburg · Resource Index
- 47
- Resource Index · Typical
- 18.7:1
- large classes for Pennsylvania
- 23.4%
- free-lunch eligible
Canon-Mcmillan Shs has class sizes larger than 96% of Pennsylvania schools. Computed live against every Pennsylvania school reporting to NCES.
By Resource Investment Index, Canon-Mcmillan Shs ranks #4 of 6 public schools in Canonsburg, PA.
School address
District: Canon-Mcmillan Sd · Pennsylvania
NCES ID 420489004217 Verify on NCES CCD record →
Teachers (FTE)
89.0
Federal CCD staff survey
Students per teacher
18.7:1
vs 13.6:1 Pennsylvania avg
+38% vs state
Free-lunch eligible
23.4%
vs 58.1% Pennsylvania avg
-60% vs state
Student-teacher ratio in context
How Canon-Mcmillan Shs compares with Pennsylvania and U.S. medians
What stands out at Canon-Mcmillan Shs
Large campus carrying a heavier staffing load
Canon-Mcmillan Shs is larger than most Pennsylvania schools and also reports more students per teacher than the state norm. Those facts reinforce one another: this is not merely a small specialist campus whose ratio is distorted by a tiny denominator. The operational constraint is scale paired with tighter staffing. Families comparing programs should inspect whether counselors, gifted access, and other support indicators compensate for that teacher-staffing load.
Need and resources require a component-level read
Canon-Mcmillan Shs falls within the wide middle of the Pennsylvania distribution on both free-meal eligibility and the Resource Investment Index. Neither measure supplies an honest headline by itself. The useful distinctions are in the components: classroom staffing, counselor availability, attendance, gifted-program access, and district spending. Those fields can pull in opposite directions even when the overall percentile looks ordinary.
Student support operates inside a leaner district budget
Canon-Mcmillan Shs's district reports $14,313 in per-pupil expenditure, at least 15% below the Pennsylvania average of $18,725. That district-wide constraint gives the campus-level support fields added meaning: counselor loads, specialist staffing, and program access are being reported within a comparatively lean spending environment. F-33 does not publish this school's own budget, so the comparison describes district context rather than dollars assigned to this building.
Canon-Mcmillan Shs is a large high school in Canonsburg, Pennsylvania, enrolling 1,660 students.
Class loads run heavy: 18.7:1 is larger than about 96% of Pennsylvania schools and 38% above the 13.6:1 state mean, so each teacher carries more students than is typical.
Economic need runs somewhat below the state's typical profile, with 23.4% of students eligible for free meals.
By headcount it is one of the larger campuses in Pennsylvania, bigger than 97% of state schools at 1,660 students.
Its Resource Investment Index sits near the middle of the pack among 2,889 scored Pennsylvania schools.
Against 133 statewide peers matched on enrollment and economic need, it ranks mid-pack at #85.
Its student body is predominantly White (84% of enrollment) (diversity index 28/100).
On the academic-pipeline side it reports 20 Advanced Placement courses.
Counselor availability sits well past the ASCA benchmark, roughly 332 students sharing each counselor, though short of the most stretched campuses.
15.8% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
The surrounding Canon-Mcmillan Sd spends $14,313 per pupil, 24% below the Pennsylvania average, a leaner-resourced district than most.
The federal civil-rights collection also records 1 expulsion at this campus for 2021-22.
Among Canonsburg's high schools, it stands alongside Western Area Ctc (10 students): Canon-Mcmillan Shs is larger than that campus by headcount.
Canon-Mcmillan Sd also operates Canonsburg Ms (836 students) and Muse El Sch (759 students) alongside Canon-Mcmillan Shs.
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
How Canon-Mcmillan Shs compares
Canon-Mcmillan Shs on the metrics families compare, against Pennsylvania and U.S. means.
| Metric | This school | vs Pennsylvania | Pennsylvania avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 18.7:1 | ▲ 38% | 13.6:1 | 15.7:1 |
| Free-lunch eligible | 23.4% | ▼ 60% | 58.1% | 51.7% |
| Enrollment | 1,660 | top 3% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
18.7:1
Leaner classes than 21% of US schools, heavier class loads than most.
1,660
Bigger than 97% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
23.4%
free-lunch eligible
- 60% below the Pennsylvania average of 58.1%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
18.7:1
students per teacher
- 38% above state mean
Top 96% in Pennsylvania - lower ratio than 4% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
15.8%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$14,313
per pupil, district-wide
- below Pennsylvania avg of $18,725
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors5.0 FTE
Per 332 students, the combined health-and-guidance staffing load for this school.
Discipline context
40
in-school suspensions + 71 out-of-school
Suspension rate: 2.4 per 100 students. Combined in-school and out-of-school rate: 6.7 per 100 students. Reported via the Civil Rights Data Collection. Includes 1 expulsion.
Student demographics
White 84.2%
Two or More 5.8%
African American 4.1%
Hispanic or Latino 3.4%
Asian 2.1%
American Indian / Alaska Native 0.3%
Native Hawaiian / Pacific Islander 0.1%
Largest group: White at 84.2% of enrollment.
Student-body diversity index 28.4/100
Simpson diversity index - at 28.4, Canon-Mcmillan Shs is less mixed than the Pennsylvania school average of 37.3.
Programs
AP courses offered 20
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Canon-Mcmillan Sd, which includes Canon-Mcmillan Shs.
$14,313
Per student
-24%
vs Pennsylvania
Avg $18,725
-19%
vs U.S.
Avg $17,658
Revenue mix
Local 69.3%
State 25.5%
Federal 5.2%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2022-23 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Canon-Mcmillan Shs Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Canonsburg Ms | Smaller | Similar economic need | Lower S:T ratio |
| Muse El Sch | Smaller | Similar economic need | Similar S:T ratio |
| South Central El | Smaller | Higher economic need | Lower S:T ratio |
| North Strabane Intrmd Sch | Smaller | Similar economic need | Lower S:T ratio |
| Cecil Intrmd Sch | Smaller | Similar economic need | Lower S:T ratio |
Comparisons are relative to Canon-Mcmillan Shs's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 836
- Students per teacher
- 15.8:1
- Resource Index
- 44/100
- Enrollment
- 759
- Students per teacher
- 17.7:1
- Resource Index
- 52/100
- Enrollment
- 450
- Students per teacher
- 15:1
- Resource Index
- 40/100
- Enrollment
- 415
- Students per teacher
- 14.8:1
- Resource Index
- 52/100
- Enrollment
- 412
- Students per teacher
- 17.2:1
- Resource Index
- 51/100
Similar high schools in Canonsburg
1 comparable high schools (grades 9-12) serving the same city.
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of Pennsylvania, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~1,660 students)
Similar student-teacher ratio (~18.7:1)
Next steps
Verify locally before acting on Canon-Mcmillan Shs's federal record.
- Compare Canon-Mcmillan Shs against another school. Compare schools
- Canon-Mcmillan Sd's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
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.
Frequently asked questions about Canon-Mcmillan Shs
How many students attend Canon-Mcmillan Shs?
Canon-Mcmillan Shs has 1,660 students enrolled. It is a high school in Canonsburg, PA.
What is the student-teacher ratio at Canon-Mcmillan Shs?
The student-teacher ratio at Canon-Mcmillan Shs is 18.7:1, which is 38% higher than the Pennsylvania average of 13.6:1 and 19% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Canon-Mcmillan Shs?
23.4% of students at Canon-Mcmillan Shs are eligible for free lunch, compared to the Pennsylvania average of 58.1%.
What is the racial and ethnic makeup of Canon-Mcmillan Shs?
The largest demographic group at Canon-Mcmillan Shs is White at 84.2% of enrollment, in Canonsburg, PA.
What is the Resource Investment Index for Canon-Mcmillan Shs?
Canon-Mcmillan Shs has a Resource Investment Index of 47/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Canon-Mcmillan Shs rank among public schools in Canonsburg?
By Resource Investment Index, Canon-Mcmillan Shs ranks #4 of 6 public schools in Canonsburg, PA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Canonsburg on the city page.
What other schools are in Canon-Mcmillan Sd?
Besides Canon-Mcmillan Shs, Canon-Mcmillan Sd also operates Canonsburg Ms (836 students), Muse El Sch (759 students), and South Central El (450 students). See the Canon-Mcmillan Sd district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error. Data current as of August 2026.