- Enrollment
- 2,620
- Students per teacher
- 12.5:1
- Resource Index
- 54/100
Other / mixed grade configuration · Old Greenwich, CT
Old Greenwich School
Federal NCES profile for Old Greenwich School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 63/100.
2024-25 NCES dataOther / mixed grade configurationNCES 090171000306
👥 S:T ratio 56
🌟 Gifted program 70
📋 Attendance 64
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Old Greenwich School earns 63/100 on the Resource Investment Index, with class sizes near the Connecticut median.
- 63
- Resource Index · Higher
- 11:1
- students per teacher
- 1.2%
- free-lunch eligible
- 385
- students enrolled
Old Greenwich School has class sizes near the Connecticut median. Computed live against every Connecticut school reporting to NCES.
School address
District: Greenwich School District · Connecticut
NCES ID 090171000306 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+0 students YoY
Old Greenwich School held near 406 students from 2022-23 to 2023-24 (+0 headcount).
Teacher FTE added 35.3 → 36.6 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+0 students YoY 090171000306 · Old Greenwich, CT Other · SMALL · TRAD
385 enr · 11:1 · 1.2% lunch · RII 63
Nearest enrollment peer: Greenwich High School (2,620 students)
Old Greenwich School held near 406 students from 2022-23 to 2023-24 (+0 headcount). Teacher FTE added 35.3 → 36.6 across the same CCD years. Read with this school → · District book → · Connecticut schools → · Find another →
Old Greenwich School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Greenwich High
Greenwich High School
2,620 students
- Eastern Middle 797
Eastern Middle School
797 students
- Western Middle 563
Western Middle School
563 students
- Central Middle 483
Central Middle School
483 students
- Riverside Scho 440
Riverside School
440 students
- This school 385
Old Greenwich School
385 students
What this shows Old Greenwich School reports 385 students on the CCD universe file.
How Old Greenwich School compares
Old Greenwich School held steady on CCD headcount: ratios and free-lunch share vs Connecticut and U.S. means.
| Metric | This school | vs Connecticut | Connecticut avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 11:1 | ▼ 9% | 12.1:1 | 15.7:1 |
| Free-lunch eligible | 1.2% | ▼ 97% | 36.4% | 51.7% |
| Enrollment | 385 | top 55% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
11:1
Leaner classes than 83% of US schools, among the more generously staffed nationally.
385
Bigger than 45% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
1.2%
free-lunch eligible
- 97% below the Connecticut average of 36.4%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
11:1
students per teacher
- 9% below state mean
Top 38% in Connecticut - lower ratio than 62% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
14.5%
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
$31,154
per pupil, district-wide
- above Connecticut avg of $24,680
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
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.
Student demographics
White 83.9%
Hispanic or Latino 7.5%
Two or More 4.7%
Asian 3.9%
Largest group: White at 83.9% of enrollment.
Student-body diversity index 28.7/100
Simpson diversity index - at 28.7, Old Greenwich School is less mixed than the Connecticut school average of 50.5.
Programs
Gifted & talented Yes
District finance for Greenwich School District reports $31,154 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Old Greenwich School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Greenwich High School | Larger | Higher economic need | Higher S:T ratio |
| Eastern Middle School | Larger | Similar economic need | Similar S:T ratio |
| Western Middle School | Larger | Higher economic need | Lower S:T ratio |
| Central Middle School | Larger | Higher economic need | Lower S:T ratio |
| Riverside School | Similar size | Similar economic need | Higher S:T ratio |
Comparisons are relative to Old Greenwich School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 797
- Students per teacher
- 10.4:1
- Resource Index
- 66/100
- Enrollment
- 563
- Students per teacher
- 8.3:1
- Resource Index
- 67/100
- Enrollment
- 483
- Students per teacher
- 8.8:1
- Resource Index
- 65/100
- Enrollment
- 440
- Students per teacher
- 12.6:1
- Resource Index
- 68/100
Nationwide other 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 (~385 students)
Frequently asked questions about Old Greenwich School
How many students attend Old Greenwich School?
Old Greenwich School has 385 students enrolled. It is a public school in Old Greenwich, CT. CCD year-over-year: 406 (2022-23) → 406 (2023-24), nearly flat (+0).
What is the student-teacher ratio at Old Greenwich School?
The student-teacher ratio at Old Greenwich School is 11:1, which is 9% lower than the Connecticut average of 12.1:1 and 30% 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 Old Greenwich School?
1.2% of students at Old Greenwich School are eligible for free lunch, compared to the Connecticut average of 36.4%.
What is the racial and ethnic makeup of Old Greenwich School?
The largest demographic group at Old Greenwich School is White at 83.9% of enrollment, in Old Greenwich, CT.
What is the Resource Investment Index for Old Greenwich School?
Old Greenwich School has a Resource Investment Index of 63/100 (higher reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, gifted-program reporting, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
What other schools are in Greenwich School District?
Besides Old Greenwich School, Greenwich School District also operates Greenwich High School (2,620 students), Eastern Middle School (797 students), and Western Middle School (563 students). See the Greenwich School District district page for the complete list.