Enrollment
213
Massachusetts · 2024-25 NCES data
Other / mixed grade configuration · Greenfield, MA
Federal NCES profile for Four Rivers Charter Public School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 22/100.
The verdict
Four Rivers Charter Public School earns 22/100 on the Resource Investment Index, even as it posts class sizes smaller than 70% of Massachusetts schools. It is also less racially and ethnically mixed than most Massachusetts schools.
Four Rivers Charter Public School has class sizes smaller than 70% of Massachusetts schools. Computed live against every Massachusetts school reporting to NCES.
By Resource Investment Index, Four Rivers Charter Public School ranks #4 of 4 schools in Greenfield, MA.
NCES ID 250007602086 Verify on NCES CCD record →
Enrollment
213
Massachusetts · 2024-25 NCES data
Teachers (FTE)
20.0
Federal CCD staff survey
Students per teacher
10.7:1
vs 12.3:1 Massachusetts avg
-13% vs state
How Four Rivers Charter Public School compares with Massachusetts and U.S. medians
Four Rivers Charter Public School is a small charter combined-grade school in Greenfield, Massachusetts, enrolling 213 students.
Class sizes run a bit leaner than typical: 10.7:1 puts it in the smaller third of Massachusetts schools by student-teacher ratio.
Enrollment of 213 puts it in the smaller third of Massachusetts schools by headcount.
Its Resource Investment Index trails 98% of the 1,831 Massachusetts schools with a score on record, one of the lower results on this measure.
Its student body is predominantly White (88% of enrollment), among the less diverse in the state (diversity index 22/100).
Counselor access is stretched at roughly 561 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 52.6% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Greenfield's public schools, it stands alongside Greater Commonwealth Virtual School (1,184 students): Four Rivers Charter Public School is smaller than that campus by headcount and runs leaner classes (10.7:1 vs 16.4:1).
Four Rivers Charter Public (District) is a single-school charter district, so Four Rivers Charter Public School operates independently rather than alongside district-mates.
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
Four Rivers Charter Public 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 | 10.7:1 | ▼ 13% | 12.3:1 | 15.7:1 |
| Enrollment | 213 | top 85% | - | - |
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 88.0% of enrollment.
Simpson diversity index - at 21.9, Four Rivers Charter Public School is less mixed than the Massachusetts school average of 47.3.
District-wide per-pupil expenditure for Four Rivers Charter Public (District), which includes Four Rivers Charter Public 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.
3 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 Four Rivers Charter Public 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.
Four Rivers Charter Public School has 213 students enrolled. It is a public school in Greenfield, MA.
The student-teacher ratio at Four Rivers Charter Public School is 10.7:1, which is 13% lower than the Massachusetts average of 12.3:1 and 32% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
The largest demographic group at Four Rivers Charter Public School is White at 88.0% of enrollment, in Greenfield, MA.
Four Rivers Charter Public School has a Resource Investment Index of 22/100 (lower 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, Four Rivers Charter Public School ranks #4 of 4 schools in Greenfield, MA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Greenfield on the city page.
Four Rivers Charter Public School earns 22/100 on the Resource Investment Index, even as it posts class sizes smaller than 70% of Massachusetts schools. It is also less racially and ethnically mixed than most 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.
None; Four Rivers Charter Public (District) is a single-school charter district, and Four Rivers Charter Public School is its only campus.
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.