- Enrollment
- 1,739
- Students per teacher
- 14.6:1
- Resource Index
- 42/100
Elementary school (grades K-5) · Norwalk, CT
Jefferson Marine Science Elementary School
Federal NCES profile for Jefferson Marine Science Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 46/100.
2024-25 NCES dataElementary school (grades K-5)NCES 090309000648
👥 S:T ratio 48
🌟 Gifted program 70
📋 Attendance 21
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Jefferson Marine Science Elementary School earns 46/100 on the Resource Investment Index, with class sizes larger than 76% of Connecticut schools.
- #6 of 7
- elementary schools in Norwalk · Resource Index
- 46
- Resource Index · Typical
- 13.1:1
- large classes for Connecticut
- 55.8%
- free-lunch eligible
Jefferson Marine Science Elementary School has class sizes larger than 76% of Connecticut schools. Computed live against every Connecticut school reporting to NCES.
By Resource Investment Index, Jefferson Marine Science Elementary School ranks #6 of 7 elementary schools in Norwalk, CT.
School address
District: Norwalk School District · Connecticut
NCES ID 090309000648 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+40 students YoY
Jefferson Marine Science Elementary School grew from 425 students in 2022-23 to 465 in 2023-24 (+9.4%).
Teacher FTE lost 35.0 → 34.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Growing CCD campus
+40 students YoY 090309000648 · Norwalk, CT Elementary · SMALL · TRAD
457 enr · 13.1:1 · 55.8% lunch · RII 46
Nearest enrollment peer: Brien Mcmahon High School (1,739 students)
Jefferson Marine Science Elementary School grew from 425 students in 2022-23 to 465 in 2023-24 (+9.4%). Teacher FTE lost 35.0 → 34.0 across the same CCD years. Read with this school → · District book → · Connecticut schools → · Find another →
Jefferson Marine Science Elementary School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Brien Mcmahon
Brien Mcmahon High School
1,739 students
- Norwalk High S
Norwalk High School
1,494 students
- West Rocks Mid 657
West Rocks Middle School
657 students
- Ponus Ridge St 637
Ponus Ridge Steam Academy
637 students
- Nathan Hale Mi 499
Nathan Hale Middle School
499 students
- This school 457
Jefferson Marine Science Elementary School
457 students
What this shows Jefferson Marine Science Elementary School reports 457 students on the CCD universe file.
How Jefferson Marine Science Elementary School compares
Jefferson Marine Science Elementary School is a growing campus on CCD: ratios and free-lunch share vs Connecticut and U.S. means.
| Metric | This school | vs Connecticut | Connecticut avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 13.1:1 | ▲ 8% | 12.1:1 | 15.7:1 |
| Free-lunch eligible | 55.8% | ▲ 53% | 36.4% | 51.7% |
| Enrollment | 457 | top 40% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
13.1:1
Leaner classes than 66% of US schools, among the more generously staffed nationally.
457
Bigger than 56% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
55.8%
free-lunch eligible
- 53% above the Connecticut average of 36.4%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
13.1:1
students per teacher
- 8% above state mean
Top 76% in Connecticut - lower ratio than 24% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
31.7%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$26,420
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
Hispanic or Latino 67.0%
African American 13.1%
White 7.4%
Asian 7.4%
Two or More 4.2%
American Indian / Alaska Native 0.9%
Largest group: Hispanic or Latino at 67.0% of enrollment.
Student-body diversity index 52.1/100
Simpson diversity index - at 52.1, Jefferson Marine Science Elementary School is about as mixed as the Connecticut school average of 50.5.
Programs
Gifted & talented Yes
District finance for Norwalk School District reports $26,420 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Jefferson Marine Science Elementary School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Brien Mcmahon High School | Larger | Lower economic need | Higher S:T ratio |
| Norwalk High School | Larger | Lower economic need | Similar S:T ratio |
| West Rocks Middle School | Larger | Lower economic need | Lower S:T ratio |
| Ponus Ridge Steam Academy | Larger | Similar economic need | Lower S:T ratio |
| Nathan Hale Middle School | Similar size | Lower economic need | Lower S:T ratio |
Comparisons are relative to Jefferson Marine Science Elementary School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,494
- Students per teacher
- 13.3:1
- Resource Index
- 32/100
- Enrollment
- 657
- Students per teacher
- 10.6:1
- Resource Index
- 59/100
- Enrollment
- 637
- Students per teacher
- 10.8:1
- Resource Index
- 49/100
- Enrollment
- 499
- Students per teacher
- 10.8:1
- Resource Index
- 52/100
Similar elementary schools in Norwalk
6 comparable elementary schools (grades K-5) serving the same city.
Tracey Magnet School
Standard public school
434 students 12.4:1 students per teacher
Silvermine Dual Language Magnet School
Standard public school
428 students 13:1 students per teacher
Cranbury Elementary School
Standard public school
410 students 11.4:1 students per teacher
Rowayton School
Standard public school
402 students 11.5:1 students per teacher
Concord Magnet School
Standard public school
388 students 14.9:1 students per teacher
Marvin Elementary School
Standard public school
375 students 12.9:1 students per teacher
Nationwide elementary 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 (~457 students)
Frequently asked questions about Jefferson Marine Science Elementary School
How many students attend Jefferson Marine Science Elementary School?
Jefferson Marine Science Elementary School has 457 students enrolled. It is an elementary school in Norwalk, CT. CCD year-over-year: 425 (2022-23) → 465 (2023-24), up 40.
What is the student-teacher ratio at Jefferson Marine Science Elementary School?
The student-teacher ratio at Jefferson Marine Science Elementary School is 13.1:1, which is 8% higher than the Connecticut average of 12.1:1 and 17% lower than the national average of 15.7:1.
What percentage of students receive free lunch at Jefferson Marine Science Elementary School?
55.8% of students at Jefferson Marine Science Elementary School are eligible for free lunch, compared to the Connecticut average of 36.4%.
What is the racial and ethnic makeup of Jefferson Marine Science Elementary School?
The largest demographic group at Jefferson Marine Science Elementary School is Hispanic or Latino at 67.0% of enrollment, in Norwalk, CT. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 52.1/100.
What is the Resource Investment Index for Jefferson Marine Science Elementary School?
Jefferson Marine Science Elementary School has a Resource Investment Index of 46/100 (typical 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).
How does Jefferson Marine Science Elementary School rank among elementary schools in Norwalk?
By Resource Investment Index, Jefferson Marine Science Elementary School ranks #6 of 7 elementary schools in Norwalk, CT. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Norwalk on the city page.
What other schools are in Norwalk School District?
Besides Jefferson Marine Science Elementary School, Norwalk School District also operates Brien Mcmahon High School (1,739 students), Norwalk High School (1,494 students), and West Rocks Middle School (657 students). See the Norwalk School District district page for the complete list.