Enrollment
504
New Hampshire · 2024-25 NCES data
Other / mixed grade configuration · Merrimack, NH
Federal NCES profile for Thorntons Ferry School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 37/100.
The verdict
Thorntons Ferry School earns 37/100 on the Resource Investment Index, with class sizes larger than 72% of New Hampshire schools.
Thorntons Ferry School has class sizes larger than 72% of New Hampshire schools. Computed live against every New Hampshire school reporting to NCES.
By Resource Investment Index, Thorntons Ferry School ranks #3 of 3 schools in Merrimack, NH.
NCES ID 330474000280 Verify on NCES CCD record →
Enrollment
504
New Hampshire · 2024-25 NCES data
Teachers (FTE)
41.0
Federal CCD staff survey
Students per teacher
12.3:1
vs 11.3:1 New Hampshire avg
+9% vs state
Free-lunch eligible
7.2%
vs 21.5% New Hampshire avg
-67% vs state
How Thorntons Ferry School compares with New Hampshire and U.S. medians
Slightly above state median
12.3:1 - 1.0 above the New Hampshire state median of 11.3:1, indicating larger average class loads than typical schools in the state.
Thorntons Ferry School is a lower-poverty, large combined-grade school in Merrimack, New Hampshire, enrolling 504 students.
Class loads run somewhat heavier than typical: 12.3:1 puts it in the larger third of New Hampshire schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 7.2% of students eligible for free meals.
Enrollment of 504 puts it in the larger third of New Hampshire schools by headcount.
Its Resource Investment Index lands in the lower third of 500 scored New Hampshire schools.
Among 125 similarly sized, similarly resourced-need New Hampshire schools statewide, it ranks #92, in the lower tier once campus size and economic need are matched.
Its student body is predominantly White (86% of enrollment) (diversity index 26/100).
Counselor access is stretched at roughly 504 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 28.6% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Merrimack School District spends $20,427 per pupil, 28% below the New Hampshire average, a leaner-resourced district than most.
Among Merrimack's public schools, it stands alongside Reeds Ferry School (504 students): Thorntons Ferry School is larger than that campus by headcount and runs leaner classes (12.3:1 vs 13.3:1).
Merrimack School District also operates Merrimack High School (1,057 students) and James Mastricola Upper Elementary School (533 students) alongside Thorntons Ferry 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
Thorntons Ferry School on the metrics families compare, against New Hampshire and U.S. means.
| Metric | This school | vs New Hampshire | New Hampshire avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 12.3:1 | ▲ 9% | 11.3:1 | 15.7:1 |
| Free-lunch eligible | 7.2% | ▼ 67% | 21.5% | 51.7% |
| Enrollment | 504 | top 15% | - | - |
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 85.7% of enrollment.
Simpson diversity index - at 25.8, Thorntons Ferry School is about as mixed as the New Hampshire school average of 24.3.
District-wide per-pupil expenditure for Merrimack School District, which includes Thorntons Ferry 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 |
|---|---|---|---|
| Merrimack High School | Larger | Similar economic need | Similar S:T ratio |
| James Mastricola Upper Elementary School | Similar size | Similar economic need | Similar S:T ratio |
| Reeds Ferry School | Similar size | Similar economic need | Similar S:T ratio |
| Merrimack Middle School | Similar size | Similar economic need | Lower S:T ratio |
| James Mastricola Elementary School | Smaller | Similar economic need | Similar S:T ratio |
Comparisons are relative to Thorntons Ferry School'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 New Hampshire, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Thorntons Ferry 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.
Thorntons Ferry School has 504 students enrolled. It is a public school in Merrimack, NH.
The student-teacher ratio at Thorntons Ferry School is 12.3:1, which is 9% higher than the New Hampshire average of 11.3:1 and 22% lower than the national average of 15.7:1.
7.2% of students at Thorntons Ferry School are eligible for free lunch, compared to the New Hampshire average of 21.5%.
The largest demographic group at Thorntons Ferry School is White at 85.7% of enrollment, in Merrimack, NH.
Thorntons Ferry School has a Resource Investment Index of 37/100 (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, Thorntons Ferry School ranks #3 of 3 schools in Merrimack, NH. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Merrimack on the city page.
Thorntons Ferry School earns 37/100 on the Resource Investment Index, with class sizes larger than 72% of New Hampshire 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 Thorntons Ferry School, Merrimack School District also operates Merrimack High School (1,057 students), James Mastricola Upper Elementary School (533 students), and Reeds Ferry School (504 students). See the Merrimack 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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Last updated:
PlainSchools, “Thorntons Ferry School, Merrimack NH.” 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/thorntons-ferry-school-nh
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