Enrollment
260
Massachusetts · 2024-25 NCES data
Other / mixed grade configuration · Sheffield, MA
Federal NCES profile for Undermountain, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 44/100.
The verdict
Undermountain earns 44/100 on the Resource Investment Index, with class sizes smaller than 80% of Massachusetts schools.
Undermountain has class sizes smaller than 80% of Massachusetts schools. Computed live against every Massachusetts school reporting to NCES.
By Resource Investment Index, Undermountain ranks #3 of 3 schools in Sheffield, MA.
NCES ID 251104000428 Verify on NCES CCD record →
Enrollment
260
Massachusetts · 2024-25 NCES data
Teachers (FTE)
26.0
Federal CCD staff survey
Students per teacher
10:1
vs 12.3:1 Massachusetts avg
-19% vs state
How Undermountain compares with Massachusetts and U.S. medians
Smaller classes than state median
10:1 - 2.3 below the Massachusetts state median of 12.3:1, indicating smaller average class loads than typical schools in the state.
Undermountain is a mid-sized combined-grade school in Sheffield, Massachusetts, enrolling 260 students.
Class sizes run a bit leaner than typical: 10:1 puts it in the smaller third of Massachusetts schools by student-teacher ratio.
Enrollment of 260 puts it in the smaller third of Massachusetts schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 1,831 scored Massachusetts schools.
Its student body is led by White (78%) and Hispanic or Latino (13%) (diversity index 37/100).
Counselor coverage runs a bit thin, about 260 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Attendance runs somewhat below the norm, with 24.2% of students chronically absent per the 2021-22 civil-rights collection.
The surrounding Southern Berkshire spends $31,202 per pupil, 39% above the Massachusetts average, a better-resourced district than most.
Among Sheffield's public schools, it stands alongside Mt Everett Regional (278 students): Undermountain is smaller than that campus by headcount and runs heavier classes (10:1 vs 7:1).
Southern Berkshire also operates Mt Everett Regional (278 students) and New Marlborough Central (58 students) alongside Undermountain.
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
Undermountain on the metrics families compare, against Massachusetts and U.S. means.
| Metric | This school | vs Massachusetts | Massachusetts avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 10:1 | ▼ 19% | 12.3:1 | 15.7:1 |
| Enrollment | 260 | top 78% | - | - |
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 78.1% of enrollment.
Simpson diversity index - at 36.9, Undermountain is less mixed than the Massachusetts school average of 47.3.
District-wide per-pupil expenditure for Southern Berkshire, which includes Undermountain.
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 |
|---|---|---|---|
| Mt Everett Regional | Similar size | No free-lunch data | Lower S:T ratio |
| New Marlborough Central | Smaller | No free-lunch data | Lower S:T ratio |
| South Egremont | Smaller | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Undermountain's own figures; each column derives from NCES Common Core of Data.
2 comparable other schools (grades Mixed) serving the same city.
Matched by enrollment size and by staffing ratio across all of Massachusetts, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Undermountain'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.
Undermountain has 260 students enrolled. It is a public school in Sheffield, MA.
The student-teacher ratio at Undermountain is 10:1, which is 19% lower than the Massachusetts average of 12.3:1 and 36% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
The largest demographic group at Undermountain is White at 78.1% of enrollment, in Sheffield, MA.
Undermountain has a Resource Investment Index of 44/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Undermountain ranks #3 of 3 schools in Sheffield, MA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Sheffield on the city page.
Undermountain earns 44/100 on the Resource Investment Index, with class sizes smaller than 80% of Massachusetts schools. 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 Undermountain, Southern Berkshire also operates Mt Everett Regional (278 students), New Marlborough Central (58 students), and South Egremont (11 students). See the Southern Berkshire 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, “Undermountain, Sheffield MA.” 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/undermountain-ma
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