Thomas Jefferson School (2026 Profile)

5.00 (2 reviews)

Tel: (314) 843-4151 Ext. 2340

4100 South Lindbergh Blvd.
Saint Louis, MO 63127

www.tjs.org

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Thomas Jefferson School Photo #1 - TJ sits on 20 picturesque acres in suburban St. Louis, MO.

Thomas Jefferson School Photo #2 - AP Calculus BC exams are much more enjoyable when given outdoors.

Top 30 Best Boarding School in the U.S. Top 2% Best High School for STEM in the U.S. | Top 1.7% Best College Prep Private High School in the U.S.

Top 2% Best Private High School in the U.S. | #1 Best Boarding School in Missouri

Small by design. Our campus of 81 boarding and day students is like a family. You are known. You are cared for.

Varsity academics. Our classical, core, college prepatory curriculum was designed for an academically talented student.

360 degree college prep: Students immerse themselves in the arts, athletics, friendships, and clubs.

Quick Facts (2026)

Grades: 7-12
Enrollment: 85 students
Yearly Tuition (Boarding Students): $60,550
Yearly Tuition (Day Students): $32,375
Acceptance rate: 65%
Average class size: 14 students
Application Deadline: Dec. 8 / Jan. 9 / rolling
Source: Verified school update

Top Rankings

Thomas Jefferson School ranks among the top 20 boarding schools (out of 307 schools) for:

School Overview

| 2025 School Data

Thomas Jefferson School

Boarding School Avg.

School Focus

College Preparatory

Grades Offered

7-12

9-12

School Type

Co-ed

ADD/ADHD Support

Yes

Religious Affiliation

Non-denominational

Year Founded

1946

1909

Campus Size

20 acres

125 acres

School Motto

ὴ ἀρετή

Student Body

Enrollment

85 students

300 students

% Students of Color

52%

25%

% International Students

27%

20%

% Students Boarding

37%

70%

Average SAT Score

1450
(Out of 1600)

* National Avg. »View

SAT range (25th-75th percentile)

1400 - 1580

Average ACT score

31
(Out of 36)

*National Avg. »View

Offers Post-Grad Year

Academic Profile

Saturday Classes

Classroom Dress Code

Casual
Casual dress Monday through Thursday. Formal dress each Friday.

Casual

Average Class Size

14 students

* National Avg. »18

Student-Teacher Ratio

6:1

7:1

# of AP / Advanced Courses Offered

ESL Courses Offered

Yes

% Faculty with Advanced Degree

93%

70%

Summer Program Offered

Yes

Summer Program Details

View Summer Program Details

# of AP / Advanced Courses Offered

Courses

AP BiologyAP Calculus BC

AP ChemistryAP Comparative Government & Politics

AP Computer Science PrinciplesAP Economics

AP English Language & CompositionAP English Literature & Composition

AP FrenchAP Macroeconomics

AP MicroeconomicsAP Physics

AP Physics 2AP Statistics

AP U.S. Government & PoliticsAP U.S. History

ItalianLatin may be offered at the discretion of the department

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Tuition & Financial Aid

Endowment Size

$2.5 million

$25 million

Yearly Tuition
(Boarding Students)

$60,550
(5-day boarding and 7-day boarding options are available.)

$59,900

Yearly Tuition
(Day Students)

$32,375

$33,500

Tuition international students

$62,600

$53,975

Yearly Tuition
(5 Day Boarding)

$55,175

$44,000

% Students on Financial Aid

46%

40%

Avg. Financial Aid Grant

$22,556

$25,000

Merit Scholarships Offered

Yes

Admissions

Application Deadline

Dec. 8 / Jan. 9 / rolling

Jan. 15

SSAT Required

Yes

Acceptance Rate

65%

58%

Director of Admissions

Jennifer Kott

Application URL

Online Application

Sports

# Interscholastic Sports Offered

Sports

BasketballSoccer

TennisVolleyball

Colors

Greek word ὴ ἀρετή ('Excellence')

School Mascot

Titan

Extracurriculars

Total Extracurricular Organizations

Extracurriculars

Club or Organization:

Art and Literature MagazineArt Club

Athletics CommitteeBoarding Council

Chess ClubChorus and Select Chorus

Coffee ShopFilm Club

FIRST RoboticsGay Straight Alliance

Junior Achievement ClubLARP

Mock TrialMusic Club

NewspaperPhotography Club

Spirit ClubWhispers (Yearbook)

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Arts and Music Programs:

DrawingImprovisation

Music AppreciationMusic Ensemble

Set Design

Recreational Athletic Programs:

Fitness ClubYoga

College Matriculation

College Acceptance Rate

100%

10 Most Popular College Choices (# Enrolled)

Washington University in St. Louis

Knox College

Northwestern University

University of Chicago

American University

New York University

Smith College

The Johns Hopkins University

Bowdoin College

Stanford University

View Matriculation Data

School Notes

The top-ranked Thomas Jefferson School (TJ) is internationally recognized as one of the best boarding and day schools. TJ stands in the Top 2% in the U.S. for Best High Schools for STEM and Best College Prep Private High Schools. Since 1946, TJ has instilled intellectual rigor and personal and social responsibility in its students as they prepare for college life. Visit the picturesque campus and experience what makes TJ one of the top schools in the country! Learn more at www.tjs.org.
Application deadline: January 10/Rolling
Top 2% Best Private High Schools in the U.S. (niche.com)
1450/31 is the average SAT/ACT score
Sample of notable school alumni/alumnae:
- Hon. Thomas P. Griesa, '48 - Frmr US District Judge
- Mr. Bernat Rosner, '50 - Frmr General Counsel of Safeway; Author
- Mr. John H. Biggs, '54 - Director of Boeing Co.; Frmr CEO of TIAA-Cref
- Mr. Irv Williamson, 61 - US International Trade Commissioner
- Dr. Richard Levy, '63 - Pediatric Endocrinologist
- Mr. Keith Williamson, '70 - Senior VP and General Counsel for Centene Corporation
- Ms. Aimee Dowl, '92 - US Department of State; Author
- Dr. Dave Messina, '92 - COO at Cofactor Genomics
- Ms. Alisa Tang, '92 - Editor, Washington Post

Source: Verified school update

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Frequently Asked Questions

How much does Thomas Jefferson School cost?

Thomas Jefferson School's tuition is approximately $60,550 for boarding students and $32,375 for day students.

What is the acceptance rate of Thomas Jefferson School?

The acceptance rate of Thomas Jefferson School is 65%, which is higher than the boarding school average of 58%.

Who are famous alumni from Thomas Jefferson School?

Thomas Jefferson School famous alumni include: Hon. Thomas P. Griesa, '48, Mr. Bernat Rosner, '50, Mr. John H. Biggs, '54, Mr. Irv Williamson, 61, Dr. Richard Levy, '63, Mr. Keith Williamson, '70, Ms. Aimee Dowl, '92, Dr. Dave Messina, '92 and Ms. Alisa Tang, '92.

What sports does Thomas Jefferson School offer?

Thomas Jefferson School offers 4 interscholastic sports: Basketball, Soccer, Tennis and Volleyball.

Does Thomas Jefferson School offer a summer program?

Yes, Thomas Jefferson School offers a summer program. Visit their summer school page for more information.

What is Thomas Jefferson School's ranking?

Thomas Jefferson School ranks among the top 20 boarding schools for High percent faculty with advanced degrees, High average SAT scores and High ACT scores.

When is the application deadline for Thomas Jefferson School?

The application deadline for Thomas Jefferson School is Dec. 8 / Jan. 9 / rolling (applications are due on Dec. 8 / Jan. 9 but additional applications are reviewed year-round as space permits ).

Alumni Reviews Review School

Review

Description

Thomas Jefferson School Alumni #1
Class of 2004
5.0010/19/2004
Wesleyan University

while T.J. advertises itself as a bastion of classical education, I think that its size and its English program really make it stand out. English at Thomas Jefferson is a serious matter; students learn the. . .

Thomas Jefferson School Alumni #2
Class of 2001
5.001/18/2004
University of Richmond

Thomas Jefferson academics are extremely rigorous and are the central focus of the student body and faculty. That said, the school has broadened the variety of extracurricular activities and options over the last few. . .

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