Quick facts
- Tuition
- $71,500 a year, as published. Tuition, fees and financial aidThe school’s page does not label the year. The average 2026–27 aid award is $53,905; new-family aid applications are due Jan. 8, 2027.
- Fall 2027 dates
- Grade 9 application Nov. 15, 2026 · all files complete Jan. 8, 2027 · Kindergarten decisions Feb. 4 · Grade 9 decisions Feb. 19 · Grade 9 reply Mar. 11 by noon. Admissions, Grades 5–12Kindergarten and Grades 1–4 details are on the K–4 admissions page.
- Parent portal
- Blackbaud myschoolapp login. Portal login
- School calendar
- School-year and event dates. Calendar
- Location
- 139 West 91st Street, New York, NY 10024
Checked against Trinity School’s own pages on October 8, 2026.
- School
- Coeducational independent school, K–12, Upper West Side
- Published tuition figure
- $71,500; confirm the bill for your child’s entry year
- New-family aid application
- Due January 8, 2027
- Kids Club
- 3:00–5:45 PM on regular school days
Learning at Trinity: starting with the beetles
In Trinity’s kindergarten science curriculum, children investigate life in the soil. Bess beetles take strength tests and climb ramps with different textures, while the children devise questions, make predictions, and explain what they see.
Trinity is a coeducational independent school on Manhattan’s Upper West Side, serving kindergarten through grade 12.
Kindergarten writing is allowed to look different from child to child: a picture that tells a story, or letters, partial words, or full words, depending on readiness. Letter formation follows Wilson Fundations, which continues through third grade.
Middle school: from noticing to arguing
Observation returns in middle school English. Fifth grade asks “What do you notice?”, sixth grade turns those observations into interpretations, seventh asks for a written argument, and eighth asks for an original idea.
Math offers regular and honors versions in seventh grade and Algebra I. Ask how placement and support work together in your child’s grade.
One learning-support course described by Trinity replaces a modern-language class, with the principal’s permission. Specialists work with groups of usually five or fewer on reading, writing, study skills, and math where needed.
Upper school science: a research option
In upper school science, Advanced Science Research: Entomology puts students on a research team, with lab meetings, a journal club, and public presentations of their own projects. It requires the department head’s permission, counts for two credits, and fits only in a five-course load.
Which doors are open
Kindergarten is an entry year for children who turn five by September 1. Applying does not guarantee a tour or interview: Trinity has a limited number of visit spaces, whenever you apply.
The $75 fee is refunded if the application is not processed and waived for aid applicants. Visits pair a parent interview with a child session.
A separate classroom observation happens at the current school or on a Saturday; that observation can be waived for families applying from far away.
In grades 1–4, space opens only through attrition, so visits are not automatic, and aid is often earmarked for kindergarten and grade 9, though some years some is available.
Grade 9 is the main expansion point, with about 60 new students. Grades 5–7, 10, and 11 admit only through attrition, and there is no entry to grades 8 or 12.
Grade 9 applicants take the ISEE or SSAT between August and December and visit campus for a conversation, a group activity, and a writing exercise.
For grades 5–7, 10, and 11, a complete file is what counts if a seat opens; grades 5–7 use the ISEE, and grades 10 and 11 submit standardized test scores. Any visit would come in late winter or spring.
Trinity does not sponsor student visas. Students must live full-time with a parent or legal guardian within commuting distance, and applicants need full English proficiency.
Dates at a glance
For fall 2027 entry.
| Date | Grade | Step |
|---|---|---|
| October 16, 2026 | Kindergarten | Applications close, 5:00 PM |
| November 15, 2026 | Grade 9 | Application and visit scheduling |
| January 8, 2027 | All grades | Files complete |
| February 4, 2027 | Kindergarten | Decisions mailed |
| February 11, 2027 | Kindergarten | Reply due, noon |
| February 19, 2027 | Grade 9 | Decisions released |
| March 11, 2027 | Grade 9 | Reply due, noon |
Cost and financial aid
Aid is need-based and limited by budget; every family contributes something. Request it on the initial application; without that request you cannot apply for the first two academic years, unless finances change suddenly and significantly.
Applicants who do not qualify may reapply next year, and awards are reviewed annually.
Both households file when parents live apart, with a waiver if one parent’s information is unavailable. A non-working parent may be assigned minimum-wage income once the youngest child completes sixth grade.
For aid families, the school works to underwrite essential extras.
| Item | Detail |
|---|---|
| Included | Lower school lunch, local field trips, team equipment, school-owned instruments |
| Extra | Some global, athletics, and forensics travel; basic classroom supplies |
Chapel and the hours after class
Chapel meets weekly, rooted in Trinity’s Episcopal heritage and open to students of many religious and philosophical backgrounds. Students take part by reading, playing music, and speaking, and sample programs include a Diwali observance and a blessing of stuffed animals.
Trinity After School is a K–6 program with classes from 3:30 to 4:30 PM; Fall 2026 offerings include LEGO robotics, mock trial, and chess. Kids Club runs 3:00–5:45 PM on regular school days, so check conference days and breaks.
Private music lessons are open K–12.
Free DOE buses cover certain Manhattan sections, a private downtown route costs extra, and no routes leave Manhattan.
Our read
What stands out at Trinity is how plainly the curriculum builds from observing to interpreting to arguing, from kindergarten science to middle school English. The question for a visit is how that sequence adapts for a child who needs a different pace, and what extra support asks of the family.
Honors math, research courses and aid costs at Trinity
Ask how seventh-grade math placement works, whether research electives will still run, and which trips and supplies count as essential costs for aid families.
Placement, courses and aid
- How is placement into honors math handled in seventh grade and Algebra I?
- What learning support exists in each division, and does it change a child’s course load or language study?
- Will research courses like Entomology be available by the time my child is eligible?
- For aid families, which trips and supplies count as essential costs the school helps cover?
Sources and further research
Where to verify and keep reading
We favor direct links to the exact page or document a family may need next. Access dates matter because admissions, tuition, leadership, and programs change.
- Tuition and financial aid
Trinity School · Accessed October 3, 2026
- Kindergarten curriculum
Trinity School · Accessed October 3, 2026
- Lower School
Trinity School · Accessed October 3, 2026
- Middle School English
Trinity School · Accessed October 3, 2026
- Middle School Mathematics
Trinity School · Accessed October 3, 2026
- Learning Center 5
Trinity School · Accessed October 3, 2026
- Upper School Science
Trinity School · Accessed October 3, 2026
- Spiritual Life
Trinity School · Accessed October 3, 2026
- Trinity After School
Trinity School · Accessed October 3, 2026
- Admissions K–4
Trinity School · Accessed October 3, 2026
- Admissions 5–12
Trinity School · Accessed October 3, 2026