The Top 25 Private High Schools in the U.S.

When looking at admission applications, colleges across the country put a lot of weight on a student's high school career. This is why, for some parents, deciding which high school to send their children is no simple task.

While most public schools are great places to receive an education, many parents believe their children can reach their highest potential at a private school. However, because the quality of private schools are just as varied as public schools, parents need to consider a number of factors before choosing the one that is right for their families.

Ranking and review site Niche.com has identified the top private high schools in the United States using information from various government and public data sets and the website's own proprietary data. For each school, the website considered key factors including performance on SAT/ACT tests, school culture and diversity, as well as student and parent reviews.

From boarding schools to day schools, here are the top private high schools in the country.

25. Hopkins School
New Haven, CT

Composite SAT/ACT Score: 2100 / 32
Parent/Student Surveys on Overall Experience: 4.6 out of 5
Student Culture and Diversity Grade: B+
Student-Teacher Ratio: 8:1

Tuition: $39,200

Hopkins School is a coed day school with 687 students in grades 7 through 12. The School allocates over $3 million to 19.4% of its students in financial aid.

24. Marlborough School
24. Marlborough School

Los Angeles, CA

Composite SAT/ACT Score: 2040 / 31
Parent/Student Surveys on Overall Experience: 4.4 out of 5
Student Culture and Diversity Grade: B+
Student-Teacher Ratio: 7:1

Tuition: $36,365

Marlborough School is an all-girls day school that serves 530 students in grades 7 through 12. Students at Marlborough come from over 80 zip codes, and one out of five students receive financial aid.

23. St. John's School
23. St. John's School

Houston, TX

Composite SAT/ACT Score: 2180 / 33
Parent/Student Surveys on Overall Experience: 4.4 out of 5
Student Culture and Diversity Grade: B
Student-Teacher Ratio: 7:1

Tuition: $27,545

St. John's School is a coed day school with 1,258 students from kindergarten through grade 12. St. John's has an endowment of $69,896,000.

22. Polytechnic School
22. Polytechnic School

Pasadena, CA

Composite SAT/ACT Score: 2100 / 32
Parent/Student Surveys on Overall Experience: 4.3 out of 5
Student Culture and Diversity Grade: A-
Student-Teacher Ratio: 9:1

Tuition: $33,500

Polytechnic School is a coed day school with 860 students in kindergarten through grade 12. Poly has an endowment of $63 million, and supports 23-25% of its students with varying amounts of financial aid.

21. Crystal Springs Uplands School
21. Crystal Springs Uplands School

Hillsborough, CA

Composite SAT/ACT Score: 2180 / 33
Parent/Student Surveys on Overall Experience: NA
Student Culture and Diversity Grade: A
Student-Teacher Ratio: 9:1

Tuition: $40,800

Crystal Springs Uplands School is a coed day school that serves 360 students in grades 6 through 12. CSUS allocates over $2.2 million to 23% of student body in the form of financial aid.

20. Collegiate School
20. Collegiate School

New York City, NY

Composite SAT/ACT Score: 2180 / 33
Parent/Student Surveys on Overall Experience: NA
Student Culture and Diversity Grade: B+
Student-Teacher Ratio: 7:1

Tuition: $45,400

The Collegiate School is an all-boys day school with 648 students from kindergarten to 12th grade. Collegiate has an endowment of $77 million.

19. Buckingham Browne & Nichols School
19. Buckingham Browne & Nichols School

Cambridge, MA

Composite SAT/ACT Score: 2100 / 32
Parent/Student Surveys on Overall Experience: 4.7 out of 5
Student Culture and Diversity Grade: B+
Student-Teacher Ratio: 6:1

Tuition: $42,320

Buckingham Browne & Nichols School is a coed day school that serves 980 students from prekindergarten through 12. BB&N is a member of Global Online Academy, an association of prominent independent schools from around the world that aims to bring the benefits of online learning to teachers and students everywhere.

18. The Harker School
18. The Harker School

San Jose, CA

Composite SAT/ACT Score: 2180 / 33
Parent/Student Surveys on Overall Experience: 4.3 out of 5
Student Culture and Diversity Grade: B
Student-Teacher Ratio: 10:1

Tuition: $43,693

The Harker School is a coed, non-profit school with 2,029 students from preschool to grade 12. Harker has four campuses and strong academic offerings in STEM and the arts.

17. Lakeside School
17. Lakeside School

Seattle, WA

Composite SAT/ACT Score: 2100 / 32
Parent/Student Surveys on Overall Experience: 4.4 out of 5
Student Culture and Diversity Grade: NA
Student-Teacher Ratio: 9:1

Tuition: $30,850

Lakeside School is a coed day school with 838 students in grades 5 through 12. The School has a 16% acceptance rate, and 30% of the student population receives financial aid.

16. St. Mark's School of Texas
16. St. Mark's School of Texas

Dallas, TX

Composite SAT/ACT Score: 2180 / 33
Parent/Student Surveys on Overall Experience: 4.6 out of 5
Student Culture and Diversity Grade: A-
Student-Teacher Ratio: 9:1

Tuition: $30,128 (9th grade), $28,273 (10th and 11th grade), $29,496 (12th grade)

St. Mark's School of Texas is a nonsectarian day school for boys with 852 students in grades 1 through 12. St. Mark's accepts 21% of applicants, 92% of whom enroll in the School.

15. Deerfield Academy
15. Deerfield Academy

Deerfield, MA

Composite SAT/ACT Score: 2040 / 31
Parent/Student Surveys on Overall Experience: NA
Student Culture and Diversity Grade: B
Student-Teacher Ratio: 6:1

Tuition: $54,720 boarding / $39,20 day

Deerfield Academy is a coed boarding school with 625 students in grades 9 through 12. Deerfield has a highly selective acceptance rate of 13% and an endowment size of $492 million.

14. The College Preparatory School
14. The College Preparatory School

Oakland, CA

Composite SAT/ACT Score: 2180 / 33
Parent/Student Surveys on Overall Experience: 4.1 out of 5
Student Culture and Diversity Grade: A
Student-Teacher Ratio: 10:1

Tuition: $38,670

The College Preparatory School is a coed day school with 363 students in grades 9 through 12. College Prep's endowment is $19 million.

13. The Roxbury Latin School
13. The Roxbury Latin School

Boston, MA

Composite SAT/ACT Score: 2180 / 33
Parent/Student Surveys on Overall Experience: 4.7 out of 5
Student Culture and Diversity Grade: NA
Student-Teacher Ratio: 8:1

Tuition: $29,300

The Roxbury Latin School is an all-boys school with 303 students in grades 7 through 12. Roxbury has an endowment of $135 million, which is the largest of any all-boys day school in the U.S.

12. The Cate School
12. The Cate School

Carpinteria Township, CA

Composite SAT/ACT Score: 2100 / 32
Parent/Student Surveys on Overall Experience: NA
Student Culture and Diversity Grade: A
Student-Teacher Ratio: 6:1

Tuition: $55,550 boarding / $44,260 day

The Cate School is a coed day and boarding school with 280 students in grades 9 through 12. Cate is highly selective, with an acceptance rate of 17%, and has students from 31 states and 18 foreign countries.

11. Flintridge Preparatory School
11. Flintridge Preparatory School

La Cañada Flintridge, CA

Composite SAT/ACT Score: 2100 / 32
Parent/Student Surveys on Overall Experience: 4.6 out of 5
Student Culture and Diversity Grade: NA
Student-Teacher Ratio: 6:1

Tuition: $34,200

Flintridge Preparatory School is a coed day school with 500 students in grades 7 through 12. Flintridge Prep is a charter member of the Western Association of Schools and Colleges, one of six official academic associations that evaluates public and private schools ranging from the elementary to college level.

10. Cranbrook Schools
10. Cranbrook Schools

Bloomfield Hills, MI

Composite SAT/ACT Score: 2040 / 31
Parent/Student Surveys on Overall Experience: 4.6 out of 5
Student Culture and Diversity Grade: NA
Student-Teacher Ratio: 6:1

Tuition: $43,900 boarding / $32,100 day

Cranbrook is a group of schools for pre-kindergarten through grade 12, consisting of 1,659 students. The Schools have a coed elementary school, one all boys middle school and one all girls middle school and a coed high school for both boarding and day students.

9. The Hotchkiss School
9. The Hotchkiss School

Salisbury Town, CT

Composite SAT/ACT Score: 2100 / 32
Parent/Student Surveys on Overall Experience: 4.6 out of 5
Student Culture and Diversity Grade: A-
Student-Teacher Ratio: 6:1

Tuition: $56,545 boarding / $48,080 day

The Hotchkiss School is nonsectarian, coed day and boarding school with 601 students in grades 9 through 12. Hotchkiss has a highly competitive admissions rate of 18%.

8. Choate Rosemary Hall
8. Choate Rosemary Hall

Wallingford, CT

Composite SAT/ACT Score: 2040 / 31
Parent/Student Surveys on Overall Experience: 4.7 out of 5
Student Culture and Diversity Grade: A+
Student-Teacher Ratio: 8:1

Tuition: $54,450 boarding / $42,080 day

Choate Rosemary Hall is a coed boarding school that has 858 students in grades 9 through 12. Choate is one of three secondary boarding schools in the U.S. that offers qualified students from families whose household incomes are less than $75,000 a year free education.

7. Groton School
7. Groton School

Groton Town, MA

Composite SAT/ACT Score: 2180 / 33
Parent/Student Surveys on Overall Experience: NA
Student Culture and Diversity Grade: B+
Student-Teacher Ratio: 7:1

Tuition: $55,700 boarding / $43,390 day

The Groton School is an Episcopal, coed college preparatory boarding school with 371 students in grades 8 through 12. Groton is highly selective, with a 12% acceptance rate, and, like Choate, offers qualified students from families whose household incomes are less than $75,000 a year free education.

6. Harvard-Westlake School
6. Harvard-Westlake School

Los Angeles, CA

Composite SAT/ACT Score: 2100 / 32
Parent/Student Surveys on Overall Experience: 4.5 out of 5
Student Culture and Diversity Grade: A-
Student-Teacher Ratio: 8:1

Tuition: $35,900

Harvard-Westlake School is a coed day school with two campuses and 1,633 students in grades 7 through 12. The School is a member of the G20 Schools, an informal association of 50 secondary schools from 20 countries that holds an annual conference to discuss key issues facing education.

5. The Lawrenceville School
5. The Lawrenceville School

Lawrence Township, NJ

Composite SAT/ACT Score: 2100 / 32
Parent/Student Surveys on Overall Experience: 4.4 out of 5
Student Culture and Diversity Grade: NA
Student-Teacher Ratio: 8:1

Tuition: $57,840 boarding / $47,840 day

The Lawrenceville School is a coed day and boarding school for 237 students in grades 9 through 12. Lawrenceville is a member of the Eight Schools Association and the Ten Schools Admissions Organization.

4. St. Paul’s School
4. St. Paul’s School

Concord, NH

Composite SAT/ACT Score: 2100 / 32
Parent/Student Surveys on Overall Experience: 4.6 out of 5
Student Culture and Diversity Grade: A+
Student-Teacher Ratio: 5:1

Tuition: $57,985

St. Paul's School is an Episcopal coed boarding school with 541 students in grades 9 through 12. St. Paul's is a member of the Eight Schools Association and is one of the 16 New England preparatory schools in the oldest independent school athletic association in the country, the Independent School League.

3. Stanford Online High School
3. Stanford Online High School

Stanford, CA

Composite SAT/ACT Score: 2180 / 33
Parent/Student Surveys on Overall Experience: 4.6 out of 5
Student Culture and Diversity Grade: NA
Student-Teacher Ratio: 14:1

Tuition: $19,950 (full-time) / $12,400 (part-time) / $4,150 (single course)

Located within Stanford University, Stanford Online High School is a school for gifted students in grades 7 through 12. OHS is the first educational institution to combine gifted education with online learning to form a diploma-granting, independent high school.

2. Phillips Exeter Academy
2. Phillips Exeter Academy

Exeter, NH

Composite SAT/ACT Score: 2100 / 32
Parent/Student Surveys on Overall Experience: 4.4 out of 5
Student Culture and Diversity Grade: A
Student-Teacher Ratio: 6:1

Tuition: $47,790 boarding / $36,800 day

Phillips Exeter Academy is a coed day and boarding school with a highly selective acceptance rate of 16%. Phillips Exeter has 1,060 students in grades 9 through 12.

1. Phillips Academy
1. Phillips Academy

Andover Town, MA

Composite SAT/ACT Score: 2180 / 33
Parent/Student Surveys on Overall Experience: NA
Student Culture and Diversity Grade: A
Student-Teacher Ratio: 7:1

Tuition: $50,300 boarding / $39,100 day

Phillips Academy is a coed day and boarding school that has 1,122 students in grades 9 through 12. The school is highly selective, with an acceptance rate of 13%, and follows a trimester program.

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