Enrollment
486
Connecticut · 2024-25 NCES data
2024-25 NCES data Other / mixed grade configuration NCES 090279001386
John S. Martinez Sea and Sky Stem School — New Haven, CT
Federal NCES profile for John S. Martinez Sea and Sky Stem School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 32/100.
👥 Class size 40
🌟 Gifted program 70
🎓 Counselors 3
📋 Attendance 13
How this works: Each indicator above is scored 0–100 from federal NCES and CRDC data, then averaged into the Resource Investment Index. This measures resource allocation — staffing, programs, and support services — not standardized test scores or academic outcomes. Full methodology →
School address
District: New Haven School District · Connecticut
Public location data per NCES (National Center for Education Statistics) Common Core of Data. Verify the school's current address on the NCES CCD record.
Teachers (FTE)
32.0
Federal CCD staff survey
Students per teacher
14.9:1
vs 12.1:1 Connecticut avg
+23% vs state
Free-lunch eligible
74.6%
vs 36.4% Connecticut avg
+105% vs state
Student-teacher ratio in context
How John S. Martinez Sea and Sky Stem School compares with Connecticut and U.S. medians
The federal record — no proprietary index, no editorial formula.
PlainSchools publishes the actual federal measurements — enrollment, staffing, demographics, discipline, and finance — straight from the NCES Common Core of Data, CRDC, and F-33 surveys. No composite rating, no opinion-based score on top. You get the same raw numbers researchers and policymakers use, with benchmarks, spending context, and equity indicators computed from the same federal datasets. Full methodology linked below.
What this school's NCES data tells you
John S. Martinez Sea and Sky Stem School reports 486 enrolled students to the National Center for Education Statistics (NCES) alongside 32.0 full-time-equivalent teachers, producing a 14.9:1 student-teacher ratio. That figure sits 23% above the Connecticut state mean of 12.1:1, signalling larger average class loads than peers in the same state. Against the national 2024-25 average of 15.9:1, it is 6% lower, a useful calibration for families comparing districts across state lines.
Title I and federal lunch eligibility offer another window into the student body: 74.6% of pupils qualify for free meals, a proxy for household income that federal programs use to direct funding. The free-lunch share is 105% above the Connecticut average and 44% above the national baseline. Counselor coverage works out to roughly 486 students per counselor, above the ASCA-recommended ceiling of 250:1. Chronic absenteeism — missing 10% or more of school days — stands at 34.8% according to the 2021-22 Civil Rights Data Collection.
On the finance side, the surrounding New Haven School District spends $24,808 per pupil district-wide, below the Connecticut average of $28,239 and above the national average of $19,490. Revenue comes 29.2% from local sources (property taxes), 56.9% from the state, and 13.9% from federal programs per the NCES F-33 finance survey. Taken together, these measurements produce a Resource Investment Index of 32/100 (F), calculated from 4 distinct NCES and CRDC indicators measuring resource allocation rather than academic outcomes.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How John S. Martinez Sea and Sky Stem School compares
Cross-validating school-level NCES values against Connecticut state and U.S. national means lets readers see whether this school is an outlier or in line with peers.
| Metric | This school | vs Connecticut | Connecticut avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 14.9:1 | ▲ 23% | 12.1:1 | 15.9:1 |
| Free-lunch eligible | 74.6% | ▲ 105% | 36.4% | 51.8% |
| Enrollment | 486 | top 65% | — | — |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
What the federal data reveals about equity at this school
Federal measurements — not ratings — surface the resource and opportunity picture. Below are the indicators that researchers, civil-rights monitors, and funding formulas use to assess equity.
Economic need
74.6%
free-lunch eligible
— 105% 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
14.9:1
students per teacher
— 23% above state mean
Top 92% in Connecticut — lower ratio than 8% of state schools
Below the 15:1 benchmark — typical of schools with smaller class sizes and more individualized attention.
Engagement
34.8%
chronically absent (missed 10%+ of school days)
Chronic absenteeism at or above 20% — the CDC threshold for "high" — signals significant barriers to regular attendance.
Funding equity
$24,808
per pupil, district-wide
— below Connecticut avg of $28,239
Above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors1.0 FTE
Per 486 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
Enrollment 486 Top 65% in Connecticut — larger than 35% of 1,005 state schools
Teachers (FTE) 32.0
Students per teacher 14.9:1 +23% vs state
Free-lunch eligible 74.6% +105% vs state
NCES ID 090279001386
Student demographics
Hispanic or Latino 89.9%
African American 5.3%
White 2.1%
Two or More 1.2%
Asian 1.0%
American Indian / Alaska Native 0.4%
Largest group: Hispanic or Latino at 89.9% of enrollment.
Programs & staff
Gifted & talented Yes
Counselors (FTE) 1.0
Students per counselor 486:1
Discipline & special education
Chronically absent 34.8%
In-school suspensions 0
Out-of-school suspensions 0
Funding & spending
District-wide per-pupil expenditure for New Haven School District, which includes John S. Martinez Sea and Sky Stem School.
$24,808
Per student
-12%
vs Connecticut
Avg $28,239
+27%
vs U.S.
Avg $19,490
Revenue mix
Local 29.2%
State 56.9%
Federal 13.9%
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.
Other Schools in This District
- Enrollment
- 1,742
- Students per teacher
- 12.7:1
- Enrollment
- 1,124
- Students per teacher
- 15:1
- Enrollment
- 734
- Students per teacher
- 10.2:1
- Enrollment
- 625
- Students per teacher
- 10.9:1
- Enrollment
- 608
- Students per teacher
- 10.5:1
Similar other schools in New Haven
6 comparable other schools (grades Mixed) serving the same city.
Amistad Academy
Standard public school
1,105 students 10:1 students per teacher
Elm City College Preparatory School
Standard public school
760 students 16.7:1 students per teacher
Fair Haven School
Standard public school
734 students 10.2:1 students per teacher
Ross/Woodward School
Standard public school
562 students 13.7:1 students per teacher
John C. Daniels
Standard public school
522 students 11.5:1 students per teacher
Nathan Hale School
Standard public school
506 students 12:1 students per teacher
Educator & family resources
In-depth guides on understanding NCES data, school choice, and education funding.
Understanding NCES data
How CCD, CRDC and EDFacts feed every public-school number you see.
Choose a school district
Eight signals that matter more than the overall ranking number.
How schools are funded
Title I, F-33, state aid formulas and what per-pupil spending really means.
Chronic absenteeism
Why missing 10% of school matters and how it varies by district.
Magnet vs charter vs traditional
Three school types, three funding models, three sets of trade-offs.
School discipline data
What CRDC suspension and expulsion records do and don't reveal.
Frequently asked questions about John S. Martinez Sea and Sky Stem School
How many students attend John S. Martinez Sea and Sky Stem School?
John S. Martinez Sea and Sky Stem School has 486 students enrolled. It is a other school in New Haven, CT.
What is the student-teacher ratio at John S. Martinez Sea and Sky Stem School?
The student-teacher ratio at John S. Martinez Sea and Sky Stem School is 14.9:1, which is 23% higher than the Connecticut average of 12.1:1 and 6% lower than the national average of 15.9:1.
What percentage of students receive free lunch at John S. Martinez Sea and Sky Stem School?
74.6% of students at John S. Martinez Sea and Sky Stem School are eligible for free lunch, compared to the Connecticut average of 36.4%.
What is the racial and ethnic makeup of John S. Martinez Sea and Sky Stem School?
The largest demographic group at John S. Martinez Sea and Sky Stem School is Hispanic or Latino at 89.9%. The school serves a diverse student body in New Haven, CT.
What is the Resource Investment Index for John S. Martinez Sea and Sky Stem School?
John S. Martinez Sea and Sky Stem School has a Resource Investment Index of 32/100 (F) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.