High school (grades 9-12) · Wellesley, MA

Wellesley Sr High

Federal NCES profile for Wellesley Sr High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 56/100.

2024-25 NCES dataHigh school (grades 9-12)NCES 251227002030
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Compiled from official source data by .
0/100100/10056/100
👥 S:T ratio
56
🌟 Gifted program
30
🎓 Counselors
78
📋 Attendance
61
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →

The verdict

Wellesley Sr High earns 56/100 on the Resource Investment Index, with class sizes near the Massachusetts median. It is also one of the largest schools in Massachusetts.

#2 of 10
public schools in Wellesley · Resource Index
56
Resource Index · Higher
10.9:1
students per teacher
1,262
students enrolled

Wellesley Sr High has class sizes near the Massachusetts median. Computed live against every Massachusetts school reporting to NCES.

By Resource Investment Index, Wellesley Sr High ranks #2 of 10 public schools in Wellesley, MA.

School address

Wellesley, MA 02481
District: Wellesley · Massachusetts

NCES ID 251227002030 Verify on NCES CCD record →

CCD year-over-year · 2022-23 → 2023-24

-54 students YoY

Wellesley Sr High held near 1,358 students from 2022-23 to 2023-24 (-54 headcount).

Teacher FTE added 116.6 → 123.3 across the same CCD years.

Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).

Steady CCD campus

-54 students YoY 251227002030 · Wellesley, MA High · MID · TRAD

1,262 enr · 10.9:1 · RII 56

Nearest enrollment peer: Wellesley Middle (919 students)

Wellesley Sr High held near 1,358 students from 2022-23 to 2023-24 (-54 headcount). Teacher FTE added 116.6 → 123.3 across the same CCD years. Read with this school → · District book → · Massachusetts schools → · Find another →

Wellesley Sr High in the enrollment neighbourhood

Fall enrollment among this campus and nearest district peers

students

What this shows Wellesley Sr High reports 1,262 students on the CCD universe file.

Source U.S. Department of Education, NCES Common Core of Data (Public School Universe) As of 2024-25

How Wellesley Sr High compares

Wellesley Sr High held steady on CCD headcount: ratios and free-lunch share vs Massachusetts and U.S. means.

Metric This school vs Massachusetts Massachusetts avg U.S. avg
Students per teacher 10.9:1 ▼ 11% 12.3:1 15.7:1
Enrollment 1,262 top 4% - -

Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25

10.9:1
Leaner classes than 84% of US schools, among the more generously staffed nationally.
1,262
Bigger than 94% of US schools by enrollment, a large campus nationally.

Equity indicators methodology

Staffing depth
10.9:1
students per teacher - 11% below state mean
Top 33% in Massachusetts - lower ratio than 67% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
15.8%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$28,794
per pupil, district-wide - above Massachusetts avg of $23,695
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors11.7 FTE
Per 108 students, the combined health-and-guidance staffing load for this school.
Discipline context
10
in-school suspensions + 14 out-of-school
Suspension rate: 0.8 per 100 students. Combined in-school and out-of-school rate: 1.9 per 100 students. Reported via the Civil Rights Data Collection.

Student demographics

White 63.1%
Asian 18.7%
Two or More 7.2%
Hispanic or Latino 6.3%
African American 4.7%

Largest group: White at 63.1% of enrollment.

Student-body diversity index 55.6/100

Simpson diversity index - at 55.6, Wellesley Sr High is more mixed than the Massachusetts school average of 47.3.

Programs

AP courses offered 21

District finance for Wellesley reports $28,794 per pupil (NCES F-33) - open the district page for the full revenue mix.

How Wellesley Sr High Compares to District-Mates

School Enrollment Economic Profile Student-Teacher Ratio
Wellesley Middle Smaller No free-lunch data Lower S:T ratio
Hunnewell Smaller No free-lunch data Higher S:T ratio
Schofield Smaller No free-lunch data Similar S:T ratio
Sprague Elementary School Smaller No free-lunch data Similar S:T ratio
Katharine Lee Bates Smaller No free-lunch data Higher S:T ratio

Comparisons are relative to Wellesley Sr High's own figures; each column derives from NCES Common Core of Data.

Other Schools in This District

Wellesley · 5 sibling schools

View district profile

Nationwide high schools with similar size or staffing

Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.

Similar enrollment (~1,262 students)

Similar student-teacher ratio (~10.9:1)

Frequently asked questions about Wellesley Sr High

How many students attend Wellesley Sr High?

Wellesley Sr High has 1,262 students enrolled. It is a high school in Wellesley, MA. CCD year-over-year: 1,412 (2022-23) → 1,358 (2023-24), nearly flat (-54).

What is the student-teacher ratio at Wellesley Sr High?

The student-teacher ratio at Wellesley Sr High is 10.9:1, which is 11% lower than the Massachusetts average of 12.3:1 and 31% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.

What is the racial and ethnic makeup of Wellesley Sr High?

The largest demographic group at Wellesley Sr High is White at 63.1% of enrollment, in Wellesley, MA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 55.6/100.

What is the Resource Investment Index for Wellesley Sr High?

Wellesley Sr High has a Resource Investment Index of 56/100 (higher reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).

How does Wellesley Sr High rank among public schools in Wellesley?

By Resource Investment Index, Wellesley Sr High ranks #2 of 10 public schools in Wellesley, 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 Wellesley on the city page.

What other schools are in Wellesley?

Besides Wellesley Sr High, Wellesley also operates Wellesley Middle (919 students), Hunnewell (294 students), and Schofield (291 students). See the Wellesley district page for the complete list.

Read our methodology - how this data is sourced, computed, and verified.

Source: National Center for Education Statistics (NCES) CCD + Public School Universe (2024-25), CRDC (2021-22), F-33 District Finance Survey (FY 2022-23) · 2024-25 Data as of the 2024-25 school year. Coverage from U.S. Department of Education NCES Common Core of Data. Varies by entity type; administrative districts and certain charter networks may report only a subset of fields.

All federal data sources used on this page

Full source list and how we compute each figure: methodology page.

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Compiled from official source data by .