Enrollment
415
Massachusetts · 2024-25 NCES data
Elementary school (grades K-5) · Spencer, MA
Federal NCES profile for Knox Trail Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 41/100.
The verdict
Knox Trail Middle School earns 41/100 on the Resource Investment Index, with class sizes larger than 82% of Massachusetts schools.
Knox Trail Middle School has class sizes larger than 82% of Massachusetts schools. Computed live against every Massachusetts school reporting to NCES.
By Resource Investment Index, Knox Trail Middle School ranks #2 of 3 public schools in Spencer, MA.
NCES ID 250000200639 Verify on NCES CCD record →
Enrollment
415
Massachusetts · 2024-25 NCES data
Teachers (FTE)
29.0
Federal CCD staff survey
Students per teacher
14.3:1
vs 12.3:1 Massachusetts avg
+16% vs state
How Knox Trail Middle School compares with Massachusetts and U.S. medians
Slightly above state median
14.3:1 - 2.0 above the Massachusetts state median of 12.3:1, indicating larger average class loads than typical schools in the state.
Knox Trail Middle School is a mid-sized elementary school in Spencer, Massachusetts, enrolling 415 students.
Class loads run somewhat heavier than typical: 14.3:1 puts it in the larger third of Massachusetts schools by student-teacher ratio.
With 415 students, its enrollment sits close to the Massachusetts median campus size.
Its Resource Investment Index sits near the middle of the pack among 1,831 scored Massachusetts schools.
Its student body is led by White (69%) and Hispanic or Latino (22%) (diversity index 47/100).
Counselor coverage is strong, about 208 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 27.7% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Spencer's elementary schools, it stands alongside Wire Village School (430 students): Knox Trail Middle School is smaller than that campus by headcount and runs heavier classes (14.3:1 vs 13:1).
Spencer-E Brookfield also operates Wire Village School (430 students) and David Prouty High (306 students) alongside Knox Trail Middle 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
Knox Trail Middle School on the metrics families compare, against Massachusetts and U.S. means.
| Metric | This school | vs Massachusetts | Massachusetts avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 14.3:1 | ▲ 16% | 12.3:1 | 15.7:1 |
| Enrollment | 415 | top 49% | - | - |
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 69.1% of enrollment.
Simpson diversity index - at 47.0, Knox Trail Middle School is about as mixed as the Massachusetts school average of 47.3.
District-wide per-pupil expenditure for Spencer-E Brookfield, which includes Knox Trail Middle 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 |
|---|---|---|---|
| Wire Village School | Similar size | No free-lunch data | Similar S:T ratio |
| David Prouty High | Smaller | No free-lunch data | Lower S:T ratio |
| East Brookfield Elementary | Smaller | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Knox Trail Middle School's own figures; each column derives from NCES Common Core of Data.
1 comparable elementary schools (grades K-5) 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 Knox Trail Middle 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.
Knox Trail Middle School has 415 students enrolled. It is an elementary school in Spencer, MA.
The student-teacher ratio at Knox Trail Middle School is 14.3:1, which is 16% higher than the Massachusetts average of 12.3:1 and 9% lower than the national average of 15.7:1.
The largest demographic group at Knox Trail Middle School is White at 69.1% of enrollment, in Spencer, MA.
Knox Trail Middle School has a Resource Investment Index of 41/100 (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, Knox Trail Middle School ranks #2 of 3 public schools in Spencer, MA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Spencer on the city page.
Knox Trail Middle School earns 41/100 on the Resource Investment Index, with class sizes larger than 82% 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 Knox Trail Middle School, Spencer-E Brookfield also operates Wire Village School (430 students), David Prouty High (306 students), and East Brookfield Elementary (247 students). See the Spencer-E Brookfield 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, “Knox Trail Middle School, Spencer 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/knox-trail-middle-school-ma
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