Trinity School

Weak · 44/100 · Private · K–12
+1 (212) 873-1650
Address: 139 West 91st Street, New York, NY 10024-1326 Phone: +1 (212) 873-1650 (General)+1 (212) 932-6820 (Lower School Admissions)+1 (212) 932-6819 (Middle & Upper School Admissions) Email: k-4admissions@trinityschoolnyc.org (Lower School Admissions)5-12admissions@trinityschoolnyc.org (Middle & Upper School Admissions)trinityfund@trinityschoolnyc.org (Trinity Fund) Website: trinityschoolnyc.org No school hours Directions →
STEM Readiness · 44/100

Trinity School

New York, New York

Excellent in computer science — absent in cybersecurity.

AI & DataCybersecurityRoboticsClean EnergyBiotechnology

Discover in stemschooler

Whether this school actually develops future-critical science, technology, engineering, arts, and mathematics — and what a year of it costs.

How safe is the school, really — beyond what the marketing says?

Safety & Discipline

Based on news coverage and Niche, we found no reported safety incident at Trinity School in the past year. The one reported controversy, in September 2022, concerned a staff member’s recorded remarks and not student safety, and Niche’s student poll reports that 47 percent of students agree they feel safe at school.

ItemWhat we foundSource
Safety incidents, past yearNone reported in the coverage we foundNews search
September 2022A director of student activities was placed on paid leave after an undercover video by Project Veritas, and outside counsel investigated; the matter concerned the official’s remarks, not student safetyKUTV
Student poll47 percent of students agree they feel safe at schoolNiche

Niche’s figure is a poll of the students who answered, not a count of incidents, and its reviewers describe a stressful, competitive culture. We found no published discipline, suspension or emergency-plan records, so what a family needs about supervision, bullying and emergencies is a question for the school.

What’s the true total cost — tuition plus fees, room/board if applicable — and how has it moved over the last 3–5 years?

True Cost

The school’s own financial-aid page for Trinity School shows a tuition figure of $71,500, dated 8/29/2025 and given without a grade or year, while Bloomberg reported in February 2025 that the school “will charge $69,000” for 2025–26, so we cannot give one confirmed figure.

CostWhat we foundSource
Tuition, school page$71,500, dated 8/29/2025, with no grade or yearTrinity School
Tuition, 2025–26$69,000Bloomberg
Tuition, third-party profile$66,740Private School Review
Tuition, 2023–24$64,100 to $64,300Wikipedia
IncludedLower School lunch and snacks, local field trips, team uniforms and equipment, Trinity-owned instruments, studio and performing-arts materials and technologyTrinity School
Not includedSome Global Engagement travel, Athletics trips, classroom supplies and the Forensics programs (Model UN, Model Congress, Debate)Trinity School
Room and boardNone: a day schoolTrinity School

The school calls its tuition “largely all-inclusive.” Read at face value, the 2023–24 and 2025–26 figures differ by about $4,700 to $4,900, but the sources do not say whether they describe the same grade, so we do not treat the gap as a trend. The application fee is $75, waived for families who apply for aid. Ask the school for its current schedule by grade.

How qualified and stable are the teachers — credentials, average tenure, turnover?

Teachers & Class Environment

Based on the school’s own pages, Trinity School reports 187 faculty for 1,046 students in 2026–27, and a school job posting from December 2024 says its faculty have “over 20 doctorates and 96 master’s degrees.” We found no tenure or turnover figures.

MeasureWhat we foundSource
Faculty and students, 2026–27187 faculty; 1,046 students; the school states a 13:1 student-teacher ratioTrinity School
Federal record, 2023–241,044 students; 156.5 full-time-equivalent classroom teachers; a student-teacher ratio of 6.7NCES
CredentialsOver 20 doctorates and 96 master’s degrees among the facultySchool job posting, December 2024
LeadershipAlexis Mulvihill, Head of School, who writes that she taught English at the school for 14 yearsTrinity School

The 13:1 ratio the school states cannot be the ratio of its students to its faculty, since 1,046 students and 187 faculty give about 5.6 to 1, so it most likely describes classes. We found no average-tenure or turnover figures and no state licensing data, and the credential count is a recruiting statement rather than an audited one.

Are scholarships or financial aid available, and what share of students receive them?

Financial Aid

Yes. Trinity School says it “currently assists almost 20% of our students across all grades,” with an average award of $53,905 for 2026–27, and awards that run from a few thousand dollars to nearly full tuition.

ItemWhat the school saysSource
Share of students aidedAlmost 20 percent, across all gradesTrinity School
Average award, 2026–27$53,905Trinity School
Applicants requesting aid30.6 percent, 2026–27Trinity School
How to applyA Clarity needs analysis; its $65 fee is waived automatically when the level of need qualifiesTrinity School
DatesOpens Sep 8, 2026; webinar Nov 4, 2026, 6:30–7:30pm; current families Dec 16, 2026; prospective families Jan 8, 2027Trinity School

The school’s own $75 application fee is automatically waived for any family applying for financial aid. The page does not say how much of the aid comes from the endowment or from fundraising, and we did not read the tax filings that would show the aid line.

Which future-critical STEM fields is this school genuinely strong in—and which ones are major gaps?

Strengths & Gaps

Based on our review, computer science is the one strong field at Trinity School, at 4.0 out of 5. AI and data and biotechnology follow at 3.0, robotics, clean energy and advanced manufacturing at 2.0, Earth and geospatial, aerospace and batteries at 1.0, and cybersecurity at 0.0.

FieldGradeWhat we found
Computer science4.0/5Eight Upper School listings, from Design Thinking to Advanced Topics, where teams build cloud-hosted applications
AI & data3.0/5Advanced Computer Science II builds data-driven web applications; no AI course found
Biotechnology3.0/5A two-year biology study in grades 7 and 8; Advanced Biology teaches polymerase chain reaction
Robotics2.0/5An Arduino project in Computer Science II; a Rube Goldberg machine in Science 6; one Middle School award, in 2017
Advanced manufacturing2.0/5Engineering Principles with a laser cutter and 3D printers; a Tinkerspace
Clean energy2.0/5Energy and environment units in Science 5 and 6; no Upper School course or club
Earth & geospatial1.0/5Weather and geology units in Science 5 and 6; nothing in the Upper School lists
Aerospace1.0/5A 2023 Minimester course, Learn to Fly, and an astrophotography expedition
Batteries1.0/5An energy-storage unit in Science 6; nothing on batteries found
Cybersecurity0.0/5Nothing found

How strong is this school in AI, data science and computer science compared with other schools?

AI, Data & Computer Science

Based on the school’s own course lists, computer science is a strength at Trinity School: the Upper School lists eight computer science courses, from Design Thinking to Advanced Topics in Computer Science, where teams build cloud-hosted applications with version control. We found no artificial-intelligence course, so AI and data science grade lower, at 3.0 out of 5.

CourseWhat it coversTerm
Design ThinkingA STEAM-infused introduction: coding, 3D design and data analysisFall
Computer Science IP5.js, HTML and CSSFall
Computer Science IISoftware and hardware together, with ArduinoSpring
Advanced Computer Science IPython through games and puzzles, and algorithmsFall
Advanced Computer Science IIData-driven client-server web applications, data journalism and algorithmic biasSpring
Advanced Topics in Computer ScienceCloud-hosted applications built in teams with version control, with a required Public Service componentFall and spring

The list also holds Digital Storytelling. The technology page names Processing, Java, Python, HTML/CSS/JavaScript and Arduino, an Upper School Computer Lab and a Tinkerspace with 3D printers, and HackTrin, a hackathon the students run, held its thirteenth edition on May 9, 2026. The school says it no longer offers Advanced Placement, so there is no AP result to compare, and we found no AI course and no external contest result.

How early does STEM begin, and does it become substantially more advanced as my child gets older?

How STEM Progresses

Based on the school’s own pages, STEM begins early at Trinity School, with technology introduced in Kindergarten and science and computer among the Lower School’s weekly special subjects, and it becomes more advanced through the grades: Middle School science covers energy, geology and a two-year biology study, and the Upper School adds eight computer science courses. The Lower School pages list no courses, so that stage rests on general statements.

StageWhat we foundSource
Lower SchoolTechnology from Kindergarten, a lower school computer lab, and weekly special subjects that include science and computerTechnology page; Lower School page
Middle School, grades 5–8Science 5 on energy and environment, Science 6 on physics and geology, ending in a Rube Goldberg machine, and a two-year biology study in Science 7 and 8; the computer science department lists no coursesMiddle School science page
Upper School, first coursesDesign Thinking, Computer Science I and II, Physics in grade 9, Principles of Chemistry or Chemistry in grade 10, Engineering Principles in grades 10 to 12Department pages
Upper School, advancedAdvanced Computer Science I and II and Advanced Topics; Advanced Biology, Advanced Chemistry, calculus-based Advanced Physics and a two-credit research courseDepartment pages

The graduation requirement is two years of a lab science. Computer science carries the progression from the Upper School’s first year to its last, while the sciences run from physics in grade 9 to advanced courses in grades 11 and 12. We found no robotics, engineering or computer science course name for grades K to 8.

Do students get access to advanced coursework, specialist electives and serious competitions?

Advanced Coursework & Competitions

Based on the school’s department lists, Trinity School offers advanced courses in computer science, calculus-based physics, chemistry, biology and research, but we found no serious competition record. The school says Advanced Placement courses are “no longer offered,” and Society for Science’s 2026 list shows one scholar from “Trinity School, New York,” with none on its 2023, 2024 or 2025 lists.

AreaWhat we foundSource
Computer scienceAdvanced Computer Science I and II, and Advanced Topics in the fall and the springDepartment page
ScienceAdvanced Biology (accelerated molecular biology), Advanced Chemistry, calculus-based Advanced Physics, and Advanced Science Research: Entomology, worth two creditsDepartment page
MathematicsIntegrated Math 4 Calculus, Calculus AB and Calculus BC, Mathematical Problem Solving and StatisticsDepartment page
CompetitionsOne scholar from “Trinity School, New York” in 2026, for a mathematics project; none in 2023 to 2025Society for Science

The research course has students carry out a project presented in multiple public forums. The list does not say how many students take each advanced course. HackTrin, the student-run hackathon, is hosted by the school and is not a contest its students enter, and we found no robotics, Science Olympiad or app-challenge result from 2023 to 2026.

Independent STEM Assessment

Will your child be ready for jobs that don’t exist yet?

Here’s what the evidence actually shows for Trinity School — not what the brochure claims.

44Weak
Strongest
Computer Science4.0/5
Also strong
None—
Weakest
Cybersecurity0.0/5
DataThe score
44/100
Weak
Future-Ready36
Depth of Teaching59
Practical Experience58
Advanced Pathways62
Career Alignment35
Evidence Strength51
NarrativeThe verdict

44/100 — Weak overall. Trinity’s computer science provision is advanced: the Upper School lists eight computer science courses, from Design Thinking through Advanced Computer Science II, where students build data-driven web applications, to Advanced Topics in Computer Science, where teams build cloud-hosted applications with version control, and HackTrin, a student-run hackathon for middle and high schoolers, held its thirteenth edition on May 9, 2026.

But: cybersecurity is absent, and Earth systems, aerospace and battery storage are lacking.

Best positioned forComputer Science

Underdeveloped inCybersecurity, Earth & Geospatial, Aerospace

Future-critical exposure3/15 domains

DataOpportunity by domain

Very strong

  • None

Strong

  • Computer Science

Limited

  • AI & Data
  • Biotechnology

Little / no pathway

  • Cybersecurity
  • Robotics
  • Clean Energy
  • Earth & Geospatial
  • Aerospace
  • Advanced Manufacturing
  • Batteries
NarrativeWho it's for

Best fit for

Students seeking an advanced computer-science pathway

Less ideal for

Students set on cybersecurity or digital forensics
Students seeking a competitive robotics team
Students seeking a clean-energy pathway
Students seeking an Earth-systems or geospatial pathway
Students seeking an aerospace pathway
Students seeking an advanced manufacturing pathway
Students seeking a battery or energy-storage pathway
Students seeking an AI or data-science pathway
Future biologists and life-science researchers
DataOpportunity Paths
AI & DataDeveloping
 
Exposure
K–5
◐
Foundation
6–8
◐
Application
9–10
◐
Advanced
11–12
 
Career Bridge
Post-school
The Lower School pages list no courses, so grades K–4 are judged on what the school says in general terms. Grades 5–8 collect and graph data in science and meet basic statistics in Math 7. In the Upper School, Design Thinking includes data analysis, Advanced Computer Science II builds data-driven client-server web applications and takes up data journalism and algorithmic bias, and the Math department lists a Statistics course. No artificial-intelligence or machine-learning course was found.
CybersecurityWeak
 
Exposure
K–5
 
Foundation
6–8
 
Application
9–10
 
Advanced
11–12
 
Career Bridge
Post-school
The Lower School pages list no courses, so grades K–4 are judged on what the school says in general terms. No cybersecurity course, club, certification or competition was found in the Middle School or Upper School course lists, the technology page or the clubs page.
RoboticsWeak
 
Exposure
K–5
◐
Foundation
6–8
◐
Application
9–10
 
Advanced
11–12
 
Career Bridge
Post-school
The Lower School pages list no courses, so grades K–4 are judged on what the school says in general terms. The Middle School robotics Gold Team won Best Robot Design at a FIRST LEGO League qualifier on January 21, 2017, Science 6 ends with a Rube Goldberg machine of the students’ own design, and Computer Science II ends in a project that joins software and hardware on Arduino microcontrollers. No robotics course and no result after 2017 was found.
Clean EnergyWeak
 
Exposure
K–5
◐
Foundation
6–8
 
Application
9–10
 
Advanced
11–12
 
Career Bridge
Post-school
The Lower School pages list no courses, so grades K–4 are judged on what the school says in general terms. Science 5, Energy and Environment, takes up electric circuits and environmental sustainability, and in Science 6 students describe energy storage and transfer and research alternative energies. No Upper School clean-energy course, club or competition was found; the school’s zero-waste recycling and composting is run with its dining partner and is sustainability practice rather than clean-energy teaching.
BiotechnologyDeveloping
 
Exposure
K–5
◐
Foundation
6–8
 
Application
9–10
◐
Advanced
11–12
 
Career Bridge
Post-school
The Lower School pages list no courses, so grades K–4 are judged on what the school says in general terms. Biology is a two-year study in grades 7 and 8, covering the chemistry of life, cells and genetics, with citizen-science projects. In the Upper School, Advanced Biology is an accelerated course in molecular biology that teaches techniques such as polymerase chain reaction, and Advanced Science Research: Entomology has students carry out a research project. No industry certification was found.
Computer ScienceExcellent
◐
Exposure
K–5
◐
Foundation
6–8
✓
Application
9–10
✓
Advanced
11–12
 
Career Bridge
Post-school
The Lower School pages list no courses, so grades K–4 are judged on what the school says in general terms. Technology begins in Kindergarten and the Lower School schedule includes a weekly computer class; the Middle School department lists no courses and aims for digital fluency. The Upper School then lists eight computer science courses, from Design Thinking to Advanced Topics in Computer Science, where teams build cloud-hosted applications with version control. No artificial-intelligence course and no external contest result was found.
NarrativeWhere the marketing exceeds the evidence — and where it doesn't

Where the marketing exceeds the evidence

School says“Donations from our many Angels help support special projects like HackTrin and our Robotics program”
Evidence showsHackTrin is well evidenced: a student-run hackathon whose thirteenth edition ran on May 9, 2026, and whose seventh, on March 8, 2020, is listed on hackathon.com. The robotics programme is not: the Middle School and Upper School course lists hold no robotics course, the one result we found is a Middle School team’s Best Robot Design award at a FIRST LEGO League qualifier in January 2017, and the school’s clubs page names no STEM club.
No robotics team roster, course or result after 2017 was found.
Programme maturity: 2.0/5 — Activity, short of Structured

Where the school is stronger than its marketing suggests

School says“The Upper School offers a full sequence of computer science courses.”
Evidence showsThe sentence is one line on the technology page. The Upper School course lists hold eight computer science listings, from Design Thinking, which teaches coding, 3D design and data analysis, through Computer Science I in P5.js, HTML and CSS and Computer Science II with Arduino, to Advanced Computer Science I and II in Python and web applications and Advanced Topics, offered in the fall and the spring, with a required Public Service component. A hackathon the students run has reached its thirteenth edition.
Programme maturity: 4.0/5 — Advanced. If anything the school understates it.
DataNarrativeSpecialisations — both at once

Curriculum

  • Advanced Computer Science II builds data-driven client-server web applications and takes up data journalism and algorithmic bias
  • Design Thinking, a STEAM-infused introduction to computer science, covers coding, 3D design and data analysis, and the Math department lists a Statistics course
  • In Middle School, Science 6 works through data collection and graphical analysis, and Math 7 includes basic statistical analysis

Evidence seen

  • The 2020 edition of HackTrin, the student-run hackathon, listed artificial intelligence and big data among its themes (hackathon.com)

What's missing

  • No artificial-intelligence or machine-learning course in the Upper School lists
  • No AI or data-science club, competition result or dated student project from 2023 onward found
  • The Lower School pages list no courses, so grades K–4 rest on general statements
Evidence confidence: 55/100

What's missing

  • No cybersecurity or information-security course, club, certification or competition found in the Middle School or Upper School course lists, the technology page or the clubs page
  • The clubs page names no STEM clubs, so a club could exist without being listed
  • The Lower School pages list no courses
Evidence confidence: 45/100

Curriculum

  • Computer Science II is the second half of a year-long sequence and ends in a project that joins software and hardware on Arduino microcontrollers
  • Science 6 ends with students building a Rube Goldberg machine of their own design

Evidence seen

  • The Middle School robotics Gold Team won Best Robot Design at a FIRST LEGO League qualifier at City College on January 21, 2017 (school news, January 25, 2017)
  • The Computer Science Angels page names the school’s robotics programme among the projects its donors support

What's missing

  • No robotics course in the Middle School or Upper School lists
  • No robotics result after January 2017 found, and no team roster
  • The Lower School pages list no courses
Evidence confidence: 50/100

Curriculum

  • Science 5, Energy and Environment, covers force, motion and electric circuits, applies the principles of energy and water to weather, and has students develop a working definition of environmental sustainability
  • In Science 6, Physics and Geology, energy is described in terms of energy storage and energy transfer and students research alternative energies

Evidence seen

  • The school says it seeks to be a zero waste school and, with FLIK Dining Services, runs recycling and composting programs; a food-donation program is carried by the tenth and eleventh grades
  • A January 2026 alumni profile on the school’s news page follows an architect who designs passive-energy tiny homes for the Lakota Nation

What's missing

  • No Upper School clean-energy or climate-technology course, club or competition found
  • The zero-waste effort is sustainability practice run with the dining partner, and the profile is an alumna’s career, not student work
  • The Lower School pages list no courses
Evidence confidence: 50/100

Curriculum

  • Science 7 and Science 8 are a two-year study of biology, covering the chemistry of life, cell structure and function, genetics, evolution and ecology, with citizen-science projects and the analysis of field and lab data
  • Biology and Principles of Biology are taught in grade 11, and Advanced Biology is an accelerated course in molecular biology that teaches techniques such as polymerase chain reaction
  • Advanced Science Research: Entomology, worth two credits, is open to students with a B or better in 11th-grade biology and has them carry out a research project with lab meetings and a journal club

Evidence seen

  • Synapse, a student-proposed publication, summarises current events in the science and medical fields

What's missing

  • No industry certification, laboratory partnership or life-science research result found; Society for Science lists one Trinity scholar in 2026, in mathematics, and none in 2023 to 2025
  • The Lower School pages list no courses, so grades K–4 rest on general statements
Evidence confidence: 55/100

Curriculum

  • Eight Upper School listings: Design Thinking, Digital Storytelling, Computer Science I and II, Advanced Computer Science I and II, and Advanced Topics in Computer Science in the fall and the spring
  • Computer Science I teaches P5.js, HTML and CSS; Advanced Computer Science I teaches Python through games and puzzles and algorithms; Advanced Topics builds cloud-hosted applications in teams with version control and has a required Public Service component

Evidence seen

  • The Library, Media and Technology page lists Processing, Java, Python, HTML/CSS/JavaScript and Arduino, an Upper School Computer Lab and a Tinkerspace with 3D printers and Kinect cameras
  • HackTrin, a student-run hackathon for middle and high schoolers, held its thirteenth edition on May 9, 2026
  • The school announced in August 2025 that it is building a Visual Arts and Computer Science Wing

What's missing

  • The school says Advanced Placement courses are no longer offered, so there is no AP Computer Science result; no external contest result found
  • No count of students taking each course found
  • The Middle School department lists no courses, only digital fluency, and the Lower School schedule includes a weekly computer class without further detail
Evidence confidence: 70/100

Curriculum

  • Science 5 applies the principles of energy and water to weather and the Manhattan microclimate
  • Science 6, Physics and Geology, takes up geologic contexts from continental drift to geothermal energy

What's missing

  • No environmental-science, Earth-science, geology or geographic-information-systems course found in the Upper School lists, and no club or competition
  • Global Engagement lists a 2024 Iceland expedition, but its content was not read, so it is not counted
  • The Lower School pages list no courses
Evidence confidence: 45/100

Evidence seen

  • The 2023 Minimester, a one-week Pass/Fail course period, offered Learn to Fly
  • Global Engagement ran Astrophotography in Big Bend as an expedition in 2023

What's missing

  • No aerospace course, rocketry, drone or satellite team found
  • Both items are one-off offerings; no later edition found
  • The Lower School pages list no courses
Evidence confidence: 50/100

Curriculum

  • Engineering Principles, open in grades 10 to 12 and taken Pass/Fail, introduces the laser cutter in the fall and 3D printers in the spring and may be taken as a seventh course

Evidence seen

  • The Upper School has a Tinkerspace with 3D printers, and Design Thinking includes 3D design
  • The 2023 Minimester offered DIY Digital Instruments, in its Make strand

What's missing

  • No manufacturing, computer-aided-design or machining course, and no credential or internship, found
  • No dated student project from 2023 onward found in the Tinkerspace
  • The Lower School pages list no courses
Evidence confidence: 50/100

Curriculum

  • In Science 6, energy is described in terms of mechanisms of energy storage and energy transfer, and Science 5 takes up electric circuits

What's missing

  • No battery, fuel-cell or energy-storage course, club or competition found, and the Middle School pages do not tie energy storage to batteries
  • The Upper School science list holds physics, chemistry, biology, engineering, psychology and one research course
  • The Lower School pages list no courses
Evidence confidence: 40/100
DataSTEAM — integrated learning

Creativity cannot be graded the way a course can. It can only be evidenced through what students made.

Criterion23242526
Art + technology
Design
Architecture
Engineering design
Media / digital production
Maker learning
Interdisciplinary projects
One artefactSeveralNone2026 in progress

Nothing found for

No student work was found evidencing these. For a school this well documented, an unrecorded programme is unlikely to be a large one.

Art + technologyDesignArchitectureEngineering designMedia / digital productionMaker learningInterdisciplinary projects
NarrativeWatchpoints

What a family should ask about directly

  • Tuition is quoted differently by each source: the school’s aid page shows a figure of $71,500 with no grade or year, Bloomberg reported $69,000 for 2025–26, and third-party sources list $66,740 for a recent year and $64,100 to $64,300 for 2023–24. Ask for the current schedule by grade, and for what tuition leaves out: the school lists some Global Engagement travel, Athletics trips, classroom supplies and its Forensics programs.
  • Cybersecurity shows nothing in the course lists, Earth and geospatial, aerospace and battery storage show only a Middle School unit or a one-off offering, and the robotics evidence is one Middle School result from 2017. A student set on any of these should ask what runs outside the course list: electives, clubs, Minimester and research placements.
  • The Middle School pages describe the science and mathematics courses but list no computer science courses, and the Lower School pages name no courses at all, so the grading of grades K–4 rests on general statements. The course guides sit in Issuu documents that could not be read. Ask for the course guide for the grades you are considering, and for the science and technology time in each.
  • The school says Advanced Placement courses are “no longer offered,” while its mathematics list still names Calculus AB and Calculus BC. Ask how the advanced courses are described to colleges and whether students can sit AP exams.
  • Admission is selective: the school takes about 60 new students in grade 9 and publishes no applicant count or acceptance rate. Niche’s student poll reports that 47 percent agree they feel safe at school, and its reviewers describe a stressful, competitive culture. Ask about acceptance statistics, counselling and the support a student under strain can reach.
DataEvidence ledger
DomainEvidence classKey sources
AI & DataSchool-reported · CorroboratedUpper School Computer Science and Math course lists; Middle School Science and Math course lists; hackathon.com listing for HackTrin, 2020; no AI course found
CybersecuritySchool-reportedMiddle School and Upper School course lists, technology page and clubs page; nothing found
RoboticsSchool-reported · Observed/archivedSchool news, January 2017 (FIRST LEGO League); Computer Science II course description; Computer Science Angels page
Clean EnergySchool-reportedMiddle School Science course list (Science 5 and 6); Social Impact page (zero-waste); school news, January 2026 (alumni profile)
BiotechnologySchool-reported · Officially recordedMiddle School and Upper School Science course lists; Society for Science scholar lists, 2023–2026; Synapse listing on the student publications page
Computer ScienceSchool-reported · CorroboratedUpper School Computer Science course list; Library, Media and Technology page; HackTrin site; hackathon.com listing, 2020; school news, August 2025
Earth & GeospatialSchool-reportedMiddle School Science course list (Science 5 and 6); Upper School Science course list; Global Engagement page
AerospaceSchool-reportedMinimester course lists, 2023; Global Engagement page (Big Bend, 2023)
Advanced ManufacturingSchool-reportedUpper School Science course list (Engineering Principles); Library, Media and Technology page; Minimester course list, 2023
Batteries & Energy StorageSchool-reportedMiddle School Science course list (Science 6); Upper School Science course list; nothing further found
By the school · 1 of 5 pages

Academics

The conversation between student and teacher is the heart of our school.

We are Trinity School, a college preparatory, coeducational independent school for grades K–12 on the Upper West Side of New York City, and we have taught here since 1709. This page follows our three divisions, then the programs that run across them. It is drawn from our own pages and our Middle School and Upper School course lists; ask below about any of it.

Lower School

Lower School

We value a young child’s natural desire to learn through creation and self-expression, and our curriculum builds on itself year by year.

  • Weekly special subjects: library, science, computer, music, art/shop/ceramics, and physical education & fitness
  • Technology introduced in Kindergarten, with a Lower School computer lab
  • Trinity After School, a K–6 program of classes run in trimesters, and Kids Club until 5:45pm
Middle School · Grades 5–8

Middle School

We help young people in grades 5–8 acquire knowledge and skills through conversation, discovery, and deep understanding.

  • Science 5, Energy and Environment: “Students examine principles of force, motion, and electric circuits”
  • Science 6, Physics and Geology, which ends with students “building a Rube Goldberg machine of their own design”
  • Science 7 and Science 8, a two-year study of biology in which students “participate in citizen science projects”
  • A Middle School robotics team: in January 2017 our Gold Team won Best Robot Design at a FIRST LEGO League qualifier
  • Weekly after-school service in grades 7 and 8 at DeHostos Community Center and Goddard Early Childhood
  • Global Engagement courses open to Middle School students, among them a study of Hawaii’s pre- and post-colonial history
Upper School

Upper School

Students in Upper School celebrate the responsibility of keen inquiry. We do not ask students to simply take a formula or a procedure and regurgitate it in different contexts.

  • Computer science: Design Thinking, Digital Storytelling, Computer Science I and II, Advanced Computer Science I and II, and Advanced Topics in Computer Science in the fall and the spring
  • Mathematics: Integrated Math 1 to 3, with honors sections, then Integrated Math 4 Calculus, Calculus AB or Calculus BC, plus Mathematical Problem Solving, Economics and Statistics
  • Science: Physics, Chemistry and Biology, then Advanced Biology, Advanced Chemistry, Advanced Physics and Advanced Science Research: Entomology; two years of lab science are required
  • Languages: Latin and Greek, and French, Spanish and Mandarin
  • Advanced Placement is not required for U.S. college admission, and we no longer offer it
Minimester

Upper School Minimester

Our Minimester is a week-long course between the Fall and Spring semesters. It began in January 2020 and is graded Pass/Fail.

  • Five strands: Explore, Magnify, Make, Move and Unplug
  • Our 2023 courses included DIY Digital Instruments, Escape Room Design and Learn to Fly
The arts

Performing and visual arts

Our Upper School course lists carry a Performing Arts department and a Visual Arts department.

  • Performing arts: acting, jazz, orchestra, chorus, Music Production, Technical Theater and Songwriting
  • Visual arts: Drawing, Painting, Advanced Portfolio I and Advanced Art History
Athletics

Athletics

We count 31 NYSAIS championship teams and 96 Ivy Prep League championship teams.

  • Sports in the fall, winter and spring seasons, and the Trinity Swim Club
  • Dudley Maxim Gym, the Exercise Balcony, the John McEnroe Tennis Courts, the Lower Gym, Trinity Pool and Deep Pool, Trinity Turf, the Wellness Center and the Wrestling Gym
Beyond the classroom

Service, travel, clubs and publications

Clubs are widely diverse and represent cultural, political, educational, and recreational interests.

  • Public Service: weekly service with our Community Circle partners, and volunteer events through the year
  • Global Engagement, founded in 2016: Road Scholar courses in language immersion, performing arts, justice journeys and expeditions
  • Clubs chartered at the September Club Fair, and Model UN, Model Congress and Debate programs
  • Student publications: Columbus, Diversion, The Bruner and The Trinity Times

Advanced courses

Advanced Computer Science I
Advanced Computer Science II
Advanced Topics in Computer Science
Advanced Biology
Advanced Chemistry
Advanced Physics
Advanced Science Research: Entomology
Calculus BC
Advanced Art History
Advanced Portfolio I
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Calendar

The year ahead, soonest first.

These are the dates our school-day, admissions and financial-aid pages publish for the months ahead. Our full 2026–2027 Academic Calendar is a PDF on our calendar page; ask below if you need us to confirm a date before you make plans.

October

Oct 12Indigenous Peoples’ Day, school closed
Oct 13In-Service/Professional Development Day: Lower School in session, no Middle or Upper School classes
Oct 27Open House for families applying to grades 5–12, 6:00–8:00pm

November

Nov 2Upper School Faculty Work Day, no Upper School classes
Nov 4Financial aid webinar, 6:30–7:30pm
Nov 6Lower School Fall Conference Day, no Lower School classes
Nov 15Application deadline for grade 9

December

Dec 16Financial aid deadline for current families

January

Jan 8Supporting documents due for grade 9 applicants, and financial aid deadline for prospective families

February

Feb 19Grade 9 admission decisions

March

Mar 11Families’ reply date for grade 9
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Our Story

Labore et virtute.

William Huddleston founded us in 1709 as a charity school at Trinity Church, and we have taught New York’s children ever since. Our families, in our Head of School’s words, “look at their relationship with us from a place of covenant, as opposed to contract.”

Vocation

The conversation between student and teacher is the heart of our school.

Obligation

We must give our students the tools of rigorous and passionate intellectual inquiry and self-expression so they can grow.

Promise

We will serve our neighbors, and we will live fully in our city, embodying and celebrating its diversity.

Means

Labore et virtute: we ask Trinity families, alumni and friends to join us in taking on this high calling.

Milestones

1709

William Huddleston founds us as a charity school at Trinity Church.

1825

New York City ends its funding for church charity schools, and we become a private college preparatory school.

1895

We move to our current location on West 91st Street, and construction begins on Saint Agatha’s, the girls’ school.

Late 1960s

Co-education begins in our Upper School, and the Hawley wing opens.

1975–86

Co-education reaches the Lower School with Kindergarten, and an arts pavilion and a theater are added. All our grades are now co-educational.

1998

We complete a $20 million capital campaign for a new Middle School and two gymnasiums, dedicated in fall 1999.

2008–09

We celebrate our 300th anniversary.

2016

We found our Global Engagement department.

2017

We open an addition of about 65,000 square feet to our campus, with new science labs.

2020

We hold our first Minimester, a week of courses between the fall and spring semesters.

2021

We begin the strategic visioning process that becomes Trinity Vision 2028.

2025

We announce that we are building a brand-new Visual Arts and Computer Science Wing.

Leadership

AM

Alexis Mulvihill

Head of School

“Trinity is a place of profound academic pursuits, and we have great fun along the way.”

SK

Stephen Kolman

Upper School Principal

Leads our Upper School.

MK

Melissa Kantor

Assistant Head of School

Introduced in our September 2025 video, Thirteen Questions.

KV

Kim Vinnakota

Director of Public Service

Directs our Office of Public Service, which offers weekly opportunities for students to connect with their community.

CM

Cindylisa Muñiz

Director of Global Engagement

Directs the department that runs our Road Scholar courses, which are not just school trips.

Trinity Vision 2028, adopted unanimously by our Board of Trustees, rests on three clusters: A Community of Belonging; The Promise and Joy of Teaching and Learning; and Citizenship.

Ask about our story
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Give

Providing support for our students.

The Trinity Fund provides critical, unrestricted support for the basic operations of the school, and we rely on the generosity of parents, alumni and their families, grandparents, faculty and staff, and friends.

Almost 20%
Of our students receive financial aid, across all grades
$53,905
Average financial aid award, 2026–27
30.6%
Of 2026–27 applicants requested aid

The Trinity Fund

Unrestricted support for student financial aid, faculty compensation, professional development, academic and extra-curricular programs, visual and performing arts, and athletics. Give online, or by Venmo at @TrinityFund.

Giving levels

The 1709 Society recognizes leadership gifts from the William Huddleston Circle ($100,000+) down to Sponsor ($1,709–$2,999), with a Blue & Gold Club for young alumni. Friends of Trinity covers gifts under $1,709, from the 91st Street Sustainer ($1,000–$1,708) to Tiger Den, up to $100.

Angels

Athletics Angels, Computer Science Angels and Performing Arts Angels support one program each. Computer Science Angels help support special projects like HackTrin and our Robotics program, and you can donate up to $100.

Matching gifts

Many companies offer matching programs. Double the impact of your support with a matching gift, and search for your employer on our Matching Gifts page when you submit a gift.

Stock gifts and planned giving

Giving appreciated securities lets you deduct the full value without incurring capital gains, and we have a separate site for planned giving.

Special events and other funds

Our Fall Festival and Spring Fling raise unrestricted funds for faculty compensation, professional development and financial aid. We also have the Marcus De Costa Fund for LGBTQ+ Inclusion & Support, the Reunion Giving Initiative and Alumni Bridge.

Give now →
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News

What is happening at Trinity.

Recent updates from our school and our alumni, newest first.

Alumnus News: Sergio J. Alati ’92 publishes Leadership in the NOW

Our alumnus has published Leadership in the NOW: Strategies for the Micro-Moments That Matter with Routledge, a book that uses storytelling and humor to address everyday decisions.

Remembering 9/11

We share the 2001 New York Times Magazine piece on 9/11 by our alumnus Colson Whitehead ’87.

Alumna News: Narina Girotra ’25 featured in Amherst College’s newspaper

The Amherst Student profiles our 2025 graduate on her first year at Amherst and on balancing academics, athletics and the arts.

Alumni Focus: Annie Siris Coombs ’99

A video profile of our alumna, an architect designing passive-energy tiny homes for the Lakota Nation in South Dakota.

Podcast with alumna author Aleksandra Crapanzano, class of 1988

An episode of a podcast featuring our alumna author.

Congratulations to our YoungArts winners!

Three of our students received YoungArts recognition, in music, piano and poetry.

Upper School Principal Stephen Kolman completes the St. Luke’s D&L RaceFest Marathon

Our Upper School Principal finished in 3:32:07 and placed second in his age group.

Congratulations to Lower School Associate Teacher Madeleine Espy and Assistant Director of Admissions Jaclyn Evans!

Both completed the 2025 TCS New York City Marathon.

Thirteen Questions for Assistant Head of School Melissa Kantor

A video interview with our Assistant Head of School.

Alumna News: Jenny Bright ’09 wins the David Prize

Our alumna received a David Prize grant for her nonprofit, Friends of the Subway.

Trinity is building a brand-new Visual Arts and Computer Science Wing!

We are building a new Visual Arts and Computer Science Wing, and our presentation of the project is on our news page.

Ask about the news

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