Enrollment
397
Massachusetts · 2024-25 NCES data
Elementary school (grades K-5) · Sudbury, MA
Josiah Haynes
Federal NCES profile for Josiah Haynes, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 48/100.
2024-25 NCES dataElementary school (grades K-5)NCES 251134001876
👥 S:T ratio 36
🌟 Gifted program 30
🎓 Counselors 39
📋 Attendance 87
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Josiah Haynes earns 48/100 on the Resource Investment Index, with class sizes larger than 91% of Massachusetts schools.
- #1 of 3
- elementary schools in Sudbury · Resource Index
- 48
- Resource Index · Typical
- 15.9:1
- large classes for Massachusetts
- 397
- students enrolled
Josiah Haynes has class sizes larger than 91% of Massachusetts schools. Computed live against every Massachusetts school reporting to NCES.
By Resource Investment Index, Josiah Haynes ranks #1 of 3 elementary schools in Sudbury, MA.
School address
District: Sudbury · Massachusetts
NCES ID 251134001876 Verify on NCES CCD record →
Teachers (FTE)
25.0
Federal CCD staff survey
Students per teacher
15.9:1
vs 12.3:1 Massachusetts avg
+29% vs state
Student-teacher ratio in context
How Josiah Haynes compares with Massachusetts and U.S. medians
What stands out at Josiah Haynes
Josiah Haynes is a mid-sized elementary school in Sudbury, Massachusetts, enrolling 397 students.
Class loads run heavy: 15.9:1 is larger than about 91% of Massachusetts schools and 29% above the 12.3:1 state mean, so each teacher carries more students than is typical.
With 397 students, its enrollment sits close to the Massachusetts median campus size.
Its Resource Investment Index lands in the upper third of 1,831 scored Massachusetts schools.
Its student body is led by White (74%) and Asian (11%) (diversity index 43/100).
Counselor coverage runs a bit thin, about 305 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Attendance holds up well here: only 5.3% of students were chronically absent, below the typical post-pandemic national figure.
Among Sudbury's elementary schools, it stands alongside Israel Loring School (426 students): Josiah Haynes is smaller than that campus by headcount and runs heavier classes (15.9:1 vs 12.2:1).
Sudbury also operates Ephraim Curtis Middle (816 students) and Peter Noyes (508 students) alongside Josiah Haynes.
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 Josiah Haynes compares
Josiah Haynes on the metrics families compare, against Massachusetts and U.S. means.
| Metric | This school | vs Massachusetts | Massachusetts avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 15.9:1 | ▲ 29% | 12.3:1 | 15.7:1 |
| Enrollment | 397 | top 53% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
15.9:1
Leaner classes than 39% of US schools, a middle-of-the-pack class size.
397
Bigger than 47% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
15.9:1
students per teacher
- 29% above state mean
Top 91% in Massachusetts - lower ratio than 9% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
5.3%
chronically absent (missed 10%+ of school days)
In the 5-10% range, close to the pre-pandemic national baseline.
Funding equity
$22,666
per pupil, district-wide
- above 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
Counselors1.3 FTE
Per 305 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 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 74.2%
Asian 10.6%
Hispanic or Latino 5.6%
Two or More 5.3%
African American 4.1%
American Indian / Alaska Native 0.3%
Largest group: White at 74.2% of enrollment.
Student-body diversity index 43.1/100
Simpson diversity index - at 43.1, Josiah Haynes is less mixed than the Massachusetts school average of 47.3.
Programs
Funding & spending
District-wide per-pupil expenditure for Sudbury, which includes Josiah Haynes.
$22,666
Per student
+1%
vs Massachusetts
Avg $22,458
+37%
vs U.S.
Avg $16,593
Revenue mix
Local 49.3%
State 45.1%
Federal 5.6%
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 Josiah Haynes Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Ephraim Curtis Middle | Larger | No free-lunch data | Lower S:T ratio |
| Peter Noyes | Larger | No free-lunch data | Lower S:T ratio |
| Israel Loring School | Similar size | No free-lunch data | Lower S:T ratio |
| General John Nixon Elementary | Similar size | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Josiah Haynes's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 816
- Students per teacher
- 10.5:1
- Resource Index
- 58/100
- Enrollment
- 508
- Students per teacher
- 13:1
- Resource Index
- 45/100
- Enrollment
- 426
- Students per teacher
- 12.2:1
- Resource Index
- 44/100
- Enrollment
- 382
- Students per teacher
- 14.7:1
- Resource Index
- 44/100
Similar elementary schools in Sudbury
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 Massachusetts, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~397 students)
Similar student-teacher ratio (~15.9:1)
Next steps
Verify locally before acting on Josiah Haynes's federal record.
- Compare Josiah Haynes against another school. Compare schools
- Sudbury'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 Josiah Haynes
How many students attend Josiah Haynes?
Josiah Haynes has 397 students enrolled. It is an elementary school in Sudbury, MA.
What is the student-teacher ratio at Josiah Haynes?
The student-teacher ratio at Josiah Haynes is 15.9:1, which is 29% higher than the Massachusetts average of 12.3:1 and 1% higher than the national average of 15.7:1.
What is the racial and ethnic makeup of Josiah Haynes?
The largest demographic group at Josiah Haynes is White at 74.2% of enrollment, in Sudbury, MA.
What is the Resource Investment Index for Josiah Haynes?
Josiah Haynes has a Resource Investment Index of 48/100 (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 Josiah Haynes rank among elementary schools in Sudbury?
By Resource Investment Index, Josiah Haynes ranks #1 of 3 elementary schools in Sudbury, MA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Sudbury on the city page.
Is Josiah Haynes a good school?
Josiah Haynes earns 48/100 on the Resource Investment Index, with class sizes larger than 91% 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.
What other schools are in Sudbury?
Besides Josiah Haynes, Sudbury also operates Ephraim Curtis Middle (816 students), Peter Noyes (508 students), and Israel Loring School (426 students). See the Sudbury 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.