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What do you wish you knew before starting at John S. Martinez Sea and Sky STEM School?
Community prompt from u/allk12. Replies below.
Enrollment
486
Elementary
DISTRICT 430 · STATE 378
SCHOOL COMMUNITY·NEW HAVEN SCHOOL DISTRICT·NCES 090279001386
John S. Martinez Sea and Sky STEM School
100 James St., New Haven, CT 06513 · (475) 220-2000 · South Central Connecticut Planning Region
GRADES PK–08ELEMENTARY12-CITYTITLE IREGULAR SCHOOL486 STUDENTS
D
allk12 Grade
Scored higher than 11% of Connecticut public elementary schools
- DTest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- ·Beats expectations Not available for this school, so the grade uses the other parts.
- ·Three-year trend Not available for this school, so the grade uses the other parts.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Connecticut public elementary schools
Student : Teacher
17.4:1
28 FTE teachers
DISTRICT 13.7:1 · STATE 12.6:1
Free / Reduced Lunch
83%
404 students
DISTRICT 75% · STATE 44%
Community
6
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Pre-K | 50 | 10% |
| Kindergarten | 44 | 9% |
| Grade 1 | 48 | 10% |
| Grade 2 | 41 | 8% |
| Grade 3 | 48 | 10% |
| Grade 4 | 46 | 9% |
| Grade 5 | 53 | 11% |
| Grade 6 | 54 | 11% |
| Grade 7 | 51 | 10% |
| Grade 8 | 51 | 10% |
This year's kindergarten class (44) is 14% smaller than its 8th grade class (51).
Student demographics
19%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 63% · STATE 67% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Test scores
CT Smarter Balanced 2024-25 . % Met or Exceeded StandardEnglish Language Arts
18.4%
CT avg 50.5%
Math
18.1%
CT avg 45.9%
What this means: On the CT Smarter Balanced, Connecticut's statewide test, about 18 of every 100 students at this school read and write at grade level and about 18 of 100 do math at grade level. Across all Connecticut schools, those numbers are about 51 and 46.
Source: CT Smarter Balanced. All students, all grades. See all years and grades →
Schools most like John S. Martinez Sea and Sky STEM School
| School | Students | Low-income | Proficient |
|---|---|---|---|
| John S. Martinez Sea and Sky STEM School this school | 486 | 83.1% | N/A |
| Family Academy of Multilingual Exploration New Haven | 441 | 76.4% | N/A |
| North Windham School North Windham | 445 | 80.2% | N/A |
| Smalley Elementary School New Britain | 594 | 86.2% | N/A |
| Truman School New Haven | 460 | 77.4% | N/A |
| Clinton Avenue School New Haven | 446 | 75.8% | N/A |
Matched among Connecticut elementary schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where John S. Martinez Sea and Sky STEM School ranks
Among elementary schools| Measure | This school | In Connecticut | In South Central Connecticut Planning Region |
|---|---|---|---|
| Math proficiency ranked highest first | 18.1% | #452 of 522 | #68 of 87 |
| Reading proficiency ranked highest first | 18.4% | #470 of 519 | #74 of 86 |
| Enrollment ranked largest first | 486 | #113 of 613 | #11 of 96 |
| Students per teacher ranked fewest first | 17.4:1 | #549 of 558 | #90 of 91 |
| Diversity index ranked most diverse first | 18.8% | #553 of 560 | #91 of 92 |
| Free and reduced lunch ranked highest share first | 83.1% | #54 of 594 | #11 of 96 |
| Enrollment change since 2017-18 ranked steepest decline first | -8.0% | #240 of 378 | #43 of 59 |
Ranked against other public elementary schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
486
+17 (+4%) vs 2020
-9% since 2010-11, when it was 536
Student : Teacher
17.4:1
was 15.6:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 486 | 28 | 17.4:1 | 83% (404) |
| 2023-24 | 483 | 32 | 15.1:1 | 87% (422) |
| 2022-23 | 476 | 32 | 14.9:1 | 86% (411) |
| 2020-21 | 469 | 30 | 15.6:1 | 86% (404) |
| 2017-18 | 528 | 31.8 | 16.6:1 | 74% (392) |
| 2015-16 | 525 | 30 | 17.5:1 | 66% (347) |
| 2010-11 | 536 | 36 | 14.9:1 | 95% (507) |
Source: NCES Common Core of Data. Rows are the federal collections on file for John S. Martinez Sea and Sky STEM School.
Since 2017-18: students down 8% (528 to 486); teachers down 12% (31.8 to 28).
About John S. Martinez Sea and Sky STEM School
John S. Martinez Sea and Sky STEM School is a mid-sized elementary school in Connecticut, with an address in New Haven. The school has 486 students in 2024-25 across pre-K through 8. That compares with an average of about 378 students for elementary schools in Connecticut.
New Haven School District is responsible for 37 schools, John S. Martinez Sea and Sky STEM School included, with 17,903 students in all.
Roughly 90% of students at John S. Martinez Sea and Sky STEM School are Hispanic. Other groups make up 5% Black and 2% White. County-wide, 20% of South Central Connecticut Planning Region residents are Hispanic. Measured by the diversity index, the student body scores 19%.
The school has 28 full-time-equivalent teachers and a ratio of 17.4 students per teacher. Elementary schools in Connecticut average 12.6:1, 4.8 fewer students per teacher than here. Of all students at John S. Martinez Sea and Sky STEM School, 83% are eligible for free or reduced-price lunch. Public schools in South Central Connecticut Planning Region average 51%.
John S. Martinez Sea and Sky STEM School holds a D allk12 Grade, placing it above 11% of Connecticut public elementary schools.
American Community Survey estimates for South Central Connecticut Planning Region show that the median household earns about $88,197 a year, about 42% of adults have at least a bachelor's degree, and the poverty rate is about 7%. Across South Central Connecticut Planning Region, 152 public schools serve about 72,909 students.
Family Academy of Multilingual Exploration sits about 0.4 miles from John S. Martinez Sea and Sky STEM School. Inside a five-mile radius, there are at least 8 other public schools.
Locale: City: Mid-size. In NCES terms, the school is inside a principal city with a population between 100,000 and 250,000.
A 4% rise took enrollment from 469 in 2020-21 to 486 in 2024-25. Federal data show the ratio rising from 15.6:1 to 17.4:1.
Use the discussion section to ask about special education services, counseling, and support programs at John S. Martinez Sea and Sky STEM School. You can also rate the school on this page.
South Central Connecticut Planning Region at a glance
View full county profilePopulation
570,598
Census ACS
Median income
$88,197
Household, ACS
Bachelor's+
42%
Adults 25+
Poverty rate
7%
Below federal line
Schools in county
152
72,909 students
Quick facts
Related schools
Other schools in New Haven School District
- Wilbur Cross High SchoolHigh · 1,742 students
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- Fair Haven SchoolElementary · 734 students
- Hill Regional Career High SchoolHigh · 625 students
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Other schools in New Haven
- Wilbur Cross High SchoolHigh · 1,742 students
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- Amistad AcademyCombined · 1,105 students
- Elm City College Preparatory SchoolCombined · 760 students
- Fair Haven SchoolElementary · 734 students
- Hill Regional Career High SchoolHigh · 625 students
Nearby schools
- Family Academy of Multilingual Exploration0.4 mi · 441
- Fair Haven School0.6 mi · 734
- Elm City College Preparatory School0.6 mi · 760
- Conte/West Hills Magnet School0.7 mi · 496
- Booker T. Washington Academy0.8 mi · 404
- Metropolitan Business Academy0.9 mi · 380
Frequently asked questions
About John S. Martinez Sea and Sky STEM SchoolHow many students attend John S. Martinez Sea and Sky STEM School?
John S. Martinez Sea and Sky STEM School enrolls approximately 486 students in grades PK-08.
Is John S. Martinez Sea and Sky STEM School an elementary, middle, or high school?
John S. Martinez Sea and Sky STEM School is an elementary school covering grades PK-08.
How many students per teacher at John S. Martinez Sea and Sky STEM School?
Approximately 17.4:1 students per teacher at John S. Martinez Sea and Sky STEM School.
What is the student diversity at John S. Martinez Sea and Sky STEM School?
Student demographics at John S. Martinez Sea and Sky STEM School are roughly 2% White, 90% Hispanic, 5% Black, 1% Asian, 1% Two or more.
What district is John S. Martinez Sea and Sky STEM School in?
John S. Martinez Sea and Sky STEM School is part of New Haven School District.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.