Enrollment
659
Massachusetts · 2024-25 NCES data
High school (grades 9-12) · Groton, MA
Groton Dunstable Regional
Federal NCES profile for Groton Dunstable Regional, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 59/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 250550000807
👥 S:T ratio 50
📚 AP courses 75
🌟 Gifted program 30
🎓 Counselors 74
📋 Attendance 65
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Groton Dunstable Regional earns 59/100 on the Resource Investment Index, with class sizes near the Massachusetts median.
- #1 of 4
- public schools in Groton · Resource Index
- 59
- Resource Index · Higher
- 12.4:1
- students per teacher
- 659
- students enrolled
Groton Dunstable Regional has class sizes near the Massachusetts median. Computed live against every Massachusetts school reporting to NCES.
By Resource Investment Index, Groton Dunstable Regional ranks #1 of 4 public schools in Groton, MA.
School address
District: Groton-Dunstable · Massachusetts
NCES ID 250550000807 Verify on NCES CCD record →
Teachers (FTE)
53.0
Federal CCD staff survey
Students per teacher
12.4:1
vs 12.3:1 Massachusetts avg
+1% vs state
Student-teacher ratio in context
How Groton Dunstable Regional compares with Massachusetts and U.S. medians
What stands out at Groton Dunstable Regional
Groton Dunstable Regional is a mid-sized high school in Groton, Massachusetts, enrolling 659 students.
At 12.4:1, its student-teacher ratio sits close to the Massachusetts median, within a few percentage points of the 12.3:1 state norm, neither notably crowded nor notably small.
Enrollment of 659 puts it in the larger third of Massachusetts schools by headcount.
Its Resource Investment Index outscores 91% of the 1,831 Massachusetts schools with a score on record, a top-tier result on this measure.
Its student body is predominantly White (82% of enrollment) (diversity index 31/100).
On the academic-pipeline side it reports 15 Advanced Placement courses.
Counselor coverage is strong, about 132 students per counselor, inside the American School Counselor Association's recommended 250:1.
14.0% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Groton-Dunstable also operates Groton Dunstable Regional Middle (739 students) and Florence Roche School (615 students) alongside Groton Dunstable Regional.
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 Groton Dunstable Regional compares
Groton Dunstable Regional on the metrics families compare, against Massachusetts and U.S. means.
| Metric | This school | vs Massachusetts | Massachusetts avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 12.4:1 | ▲ 1% | 12.3:1 | 15.7:1 |
| Enrollment | 659 | top 21% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
12.4:1
Leaner classes than 72% of US schools, among the more generously staffed nationally.
659
Bigger than 77% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
12.4:1
students per teacher
- 1% above state mean
Top 59% in Massachusetts - lower ratio than 41% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
14.0%
chronically absent (missed 10%+ of school days)
In the 10-15% range, above the pre-pandemic national baseline but within the broader post-pandemic picture.
Funding equity
$20,913
per pupil, district-wide
- below Massachusetts avg of $22,458
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors5.0 FTE
Per 132 students, the combined health-and-guidance staffing load for this school.
Discipline context
16
in-school suspensions + 17 out-of-school
Suspension rate: 2.4 per 100 students. Combined in-school and out-of-school rate: 5.0 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 82.3%
Asian 8.5%
Hispanic or Latino 3.7%
African American 2.6%
Two or More 2.6%
American Indian / Alaska Native 0.2%
Native Hawaiian / Pacific Islander 0.2%
Largest group: White at 82.3% of enrollment.
Student-body diversity index 31.3/100
Simpson diversity index - at 31.3, Groton Dunstable Regional is less mixed than the Massachusetts school average of 47.3.
Programs
AP courses offered 15
Funding & spending
District-wide per-pupil expenditure for Groton-Dunstable, which includes Groton Dunstable Regional.
$20,913
Per student
-7%
vs Massachusetts
Avg $22,458
+26%
vs U.S.
Avg $16,593
Revenue mix
Local 60.0%
State 34.5%
Federal 5.5%
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 Groton Dunstable Regional Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Groton Dunstable Regional Middle | Similar size | No free-lunch data | Similar S:T ratio |
| Florence Roche School | Similar size | No free-lunch data | Higher S:T ratio |
| Swallow/Union School | Smaller | No free-lunch data | Lower S:T ratio |
| Boutwell School | Smaller | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Groton Dunstable Regional's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 739
- Students per teacher
- 12.3:1
- Resource Index
- 54/100
- Enrollment
- 615
- Students per teacher
- 15.4:1
- Resource Index
- 45/100
- Enrollment
- 210
- Students per teacher
- 8.4:1
- Resource Index
- 53/100
- Enrollment
- 77
- Students per teacher
- 15.4:1
- Resource Index
- 34/100
Similar high schools statewide
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.
Similar enrollment (~659 students)
Similar student-teacher ratio (~12.4:1)
Next steps
Verify locally before acting on Groton Dunstable Regional's federal record.
- Compare Groton Dunstable Regional against another school. Compare schools
- Groton-Dunstable'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 Groton Dunstable Regional
How many students attend Groton Dunstable Regional?
Groton Dunstable Regional has 659 students enrolled. It is a high school in Groton, MA.
What is the student-teacher ratio at Groton Dunstable Regional?
The student-teacher ratio at Groton Dunstable Regional is 12.4:1, which is 1% higher than the Massachusetts average of 12.3:1 and 21% lower than the national average of 15.7:1.
What is the racial and ethnic makeup of Groton Dunstable Regional?
The largest demographic group at Groton Dunstable Regional is White at 82.3% of enrollment, in Groton, MA.
What is the Resource Investment Index for Groton Dunstable Regional?
Groton Dunstable Regional has a Resource Investment Index of 59/100 (higher reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Groton Dunstable Regional rank among public schools in Groton?
By Resource Investment Index, Groton Dunstable Regional ranks #1 of 4 public schools in Groton, 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 Groton on the city page.
Is Groton Dunstable Regional a good school?
Groton Dunstable Regional earns 59/100 on the Resource Investment Index, with class sizes near the Massachusetts median. 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 Groton-Dunstable?
Besides Groton Dunstable Regional, Groton-Dunstable also operates Groton Dunstable Regional Middle (739 students), Florence Roche School (615 students), and Swallow/Union School (210 students). See the Groton-Dunstable 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.