Enrollment
1,787
Minnesota · 2024-25 NCES data
Other / mixed grade configuration · Rochester, MN
Federal NCES profile for Mayo Senior High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 23/100.
The verdict
Mayo Senior High earns 23/100 on the Resource Investment Index, with class sizes larger than 98% of Minnesota schools. It is also one of the largest schools in Minnesota.
Mayo Senior High has class sizes larger than 98% of Minnesota schools. Computed live against every Minnesota school reporting to NCES.
By Resource Investment Index, Mayo Senior High ranks #21 of 25 schools in Rochester, MN.
NCES ID 273180001016 Verify on NCES CCD record →
Enrollment
1,787
Minnesota · 2024-25 NCES data
Teachers (FTE)
41.0
Federal CCD staff survey
Students per teacher
43.6:1
vs 15.8:1 Minnesota avg
+176% vs state
Free-lunch eligible
24.3%
vs 42.8% Minnesota avg
-43% vs state
How Mayo Senior High compares with Minnesota and U.S. medians
Larger classes than state median
43.6:1 - 27.8 above the Minnesota state median of 15.8:1, indicating larger average class loads than typical schools in the state.
Mayo Senior High is a large combined-grade school in Rochester, Minnesota, enrolling 1,787 students.
Class loads run heavy: 43.6:1 is larger than about 98% of Minnesota schools and 176% above the 15.8:1 state mean, so each teacher carries more students than is typical.
Economic need runs somewhat below the state's typical profile, with 24.3% of students eligible for free meals.
By headcount it is one of the larger campuses in Minnesota, bigger than 98% of state schools at 1,787 students.
Its Resource Investment Index trails 91% of the 2,334 Minnesota schools with a score on record, one of the lower results on this measure.
Among 81 similarly sized, similarly resourced-need Minnesota schools statewide, it ranks #65, in the lower tier once campus size and economic need are matched.
Its student body is led by White (59%) and Hispanic or Latino (17%) (diversity index 60/100).
Chronic absenteeism is elevated: 54.3% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Rochester Public School District also operates Century Senior High (1,608 students) and John Marshall Senior High (1,549 students) alongside Mayo Senior High.
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
Mayo Senior High on the metrics families compare, against Minnesota and U.S. means.
| Metric | This school | vs Minnesota | Minnesota avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 43.6:1 | ▲ 176% | 15.8:1 | 15.7:1 |
| Free-lunch eligible | 24.3% | ▼ 43% | 42.8% | 51.7% |
| Enrollment | 1,787 | top 2% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Largest group: White at 59.4% of enrollment.
Simpson diversity index - at 60.0, Mayo Senior High is more mixed than the Minnesota school average of 42.8.
District-wide per-pupil expenditure for Rochester Public School District, which includes Mayo Senior High.
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 |
|---|---|---|---|
| Century Senior High | Similar size | Similar economic need | Similar S:T ratio |
| John Marshall Senior High | Similar size | Higher economic need | Similar S:T ratio |
| Dakota Middle School | Smaller | Similar economic need | Lower S:T ratio |
| John Adams Middle | Smaller | Similar economic need | Higher S:T ratio |
| Willow Creek Middle | Smaller | Higher economic need | Similar S:T ratio |
Comparisons are relative to Mayo Senior High's own figures; each column derives from NCES Common Core of Data.
Matched by enrollment size and by staffing ratio across all of Minnesota, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Mayo Senior High'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.
Mayo Senior High has 1,787 students enrolled. It is a public school in Rochester, MN.
The student-teacher ratio at Mayo Senior High is 43.6:1, which is 176% higher than the Minnesota average of 15.8:1 and 178% higher than the national average of 15.7:1.
24.3% of students at Mayo Senior High are eligible for free lunch, compared to the Minnesota average of 42.8%.
The largest demographic group at Mayo Senior High is White at 59.4% of enrollment, in Rochester, MN. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 60.0/100.
Mayo Senior High has a Resource Investment Index of 23/100 (lower reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, AP course offerings, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Mayo Senior High ranks #21 of 25 schools in Rochester, MN. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Rochester on the city page.
Mayo Senior High earns 23/100 on the Resource Investment Index, with class sizes larger than 98% of Minnesota schools. It is also one of the largest schools in Minnesota. 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 Mayo Senior High, Rochester Public School District also operates Century Senior High (1,608 students), John Marshall Senior High (1,549 students), and Dakota Middle School (921 students). See the Rochester Public School District district page for the complete list.
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, or report a data error. Data current as of June 2026.
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PlainSchools, “Mayo Senior High, Rochester MN.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/mayo-senior-high-mn
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