Enrollment
289
New Hampshire · 2024-25 NCES data
Elementary school (grades K-5) · Pembroke, NH
Three Rivers School
Federal NCES profile for Three Rivers School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 34/100.
2024-25 NCES dataElementary school (grades K-5)NCES 330558000042
👥 S:T ratio 65
🌟 Gifted program 30
🎓 Counselors 42
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Three Rivers School earns 34/100 on the Resource Investment Index, with class sizes smaller than 83% of New Hampshire schools.
- #3 of 3
- elementary schools in Pembroke · Resource Index
- 34
- Resource Index · Typical
- 8.8:1
- small classes for New Hampshire
- 15.8%
- free-lunch eligible
Three Rivers School has class sizes smaller than 83% of New Hampshire schools. Computed live against every New Hampshire school reporting to NCES.
By Resource Investment Index, Three Rivers School ranks #3 of 3 elementary schools in Pembroke, NH.
School address
District: Pembroke School District · New Hampshire
NCES ID 330558000042 Verify on NCES CCD record →
Teachers (FTE)
33.0
Federal CCD staff survey
Students per teacher
8.8:1
vs 11.3:1 New Hampshire avg
-22% vs state
Free-lunch eligible
15.8%
vs 21.5% New Hampshire avg
-27% vs state
Student-teacher ratio in context
How Three Rivers School compares with New Hampshire and U.S. medians
What stands out at Three Rivers School
Three Rivers School is a lower-poverty, mid-sized elementary school in Pembroke, New Hampshire, enrolling 289 students.
Class sizes run a bit leaner than typical: 8.8:1 puts it in the smaller third of New Hampshire schools by student-teacher ratio.
Its free-meal eligibility rate of 15.8% lands close to the New Hampshire typical range, neither a high- nor low-need campus by this measure.
With 289 students, its enrollment sits close to the New Hampshire median campus size.
Its Resource Investment Index lands in the lower third of 500 scored New Hampshire schools.
Among 147 similarly sized, similarly resourced-need New Hampshire schools statewide, it ranks #125, in the lower tier once campus size and economic need are matched.
Its student body is predominantly White (88% of enrollment) (diversity index 22/100).
Counselor coverage runs a bit thin, about 289 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 42.2% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Pembroke School District spends $18,409 per pupil, 35% below the New Hampshire average, a leaner-resourced district than most.
Among Pembroke's elementary schools, it stands alongside Strong Foundations Charter School (337 students): Three Rivers School is smaller than that campus by headcount and runs leaner classes (8.8:1 vs 10.5:1).
Pembroke School District also operates Pembroke Academy (744 students) and Pembroke Hill School (312 students) alongside Three Rivers 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
How Three Rivers School compares
Three Rivers 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 | 8.8:1 | ▼ 22% | 11.3:1 | 15.7:1 |
| Free-lunch eligible | 15.8% | ▼ 27% | 21.5% | 51.7% |
| Enrollment | 289 | top 47% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
8.8:1
Leaner classes than 93% of US schools, among the more generously staffed nationally.
289
Bigger than 31% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
15.8%
free-lunch eligible
- 27% below the New Hampshire average of 21.5%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
8.8:1
students per teacher
- 22% below state mean
Top 17% in New Hampshire - lower ratio than 83% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
42.2%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$18,409
per pupil, district-wide
- below New Hampshire avg of $28,358
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors1.0 FTE
Per 289 students, the combined health-and-guidance staffing load for this school.
Discipline context
29
in-school suspensions + 9 out-of-school
Suspension rate: 10.0 per 100 students. Combined in-school and out-of-school rate: 13.1 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
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.
Student demographics
White 88.2%
Two or More 6.2%
Hispanic or Latino 4.2%
Asian 0.7%
African American 0.3%
American Indian / Alaska Native 0.3%
Largest group: White at 88.2% of enrollment.
Student-body diversity index 21.6/100
Simpson diversity index - at 21.6, Three Rivers School is less mixed than the New Hampshire school average of 24.3.
Programs
Funding & spending
District-wide per-pupil expenditure for Pembroke School District, which includes Three Rivers School.
$18,409
Per student
-35%
vs New Hampshire
Avg $28,358
+11%
vs U.S.
Avg $16,593
Revenue mix
Local 64.7%
State 26.5%
Federal 8.8%
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.
How Three Rivers School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Pembroke Academy | Larger | Similar economic need | Higher S:T ratio |
| Pembroke Hill School | Similar size | Similar economic need | Similar S:T ratio |
Comparisons are relative to Three Rivers School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 744
- Students per teacher
- 12.6:1
- Resource Index
- 39/100
- Enrollment
- 312
- Students per teacher
- 9.5:1
- Resource Index
- 38/100
Similar elementary schools in Pembroke
2 comparable elementary schools (grades K-5) serving the same city.
Similar elementary schools statewide
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.
Similar enrollment (~289 students)
Next steps
Verify locally before acting on Three Rivers School's federal record.
- Compare Three Rivers School against another school. Compare schools
- Pembroke School District'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 Three Rivers School
How many students attend Three Rivers School?
Three Rivers School has 289 students enrolled. It is an elementary school in Pembroke, NH.
What is the student-teacher ratio at Three Rivers School?
The student-teacher ratio at Three Rivers School is 8.8:1, which is 22% lower than the New Hampshire average of 11.3:1 and 44% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Three Rivers School?
15.8% of students at Three Rivers School are eligible for free lunch, compared to the New Hampshire average of 21.5%.
What is the racial and ethnic makeup of Three Rivers School?
The largest demographic group at Three Rivers School is White at 88.2% of enrollment, in Pembroke, NH.
What is the Resource Investment Index for Three Rivers School?
Three Rivers School has a Resource Investment Index of 34/100 (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).
How does Three Rivers School rank among elementary schools in Pembroke?
By Resource Investment Index, Three Rivers School ranks #3 of 3 elementary schools in Pembroke, NH. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Pembroke on the city page.
Is Three Rivers School a good school?
Three Rivers School earns 34/100 on the Resource Investment Index, with class sizes smaller than 83% 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.
What other schools are in Pembroke School District?
Besides Three Rivers School, Pembroke School District also operates Pembroke Academy (744 students) and Pembroke Hill School (312 students). See the Pembroke School District 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, or report a data error. Data current as of June 2026.