Best Private Schools in San Antonio – 2023
College Transitions’ list of the Best Private Schools in San Antonio will focus primarily on our area of expertise—college admissions. As such, we will highlight the job each school does of sending their graduates on to the region/nation’s premier 4-year schools. If you are a San Antonio-Area parent actively searching for the best-fit private schools for your child or teen (no matter the current age of your student), you are likely interested in the college preparation and counseling offered by each prospective school. Of course, in addition to that particular angle, you will also need to balance your teen’s academic, emotional, and social needs with financial and logistical considerations.
Please note that inclusion on our Best Private Schools in San Antonio list is a selective and criteria-based process. However, the order in which the schools appear is not representative of any further ranking; the numbering is solely intended to enhance the ease of navigating this resource. All of the schools profiled below have a history of sending graduates to the top colleges in the country. For each of the best private high schools in San Antonio, College Transitions will provide you with the school’s:
- Location
- Tuition (9-12)
- Enrollment (9-12)
- Average SAT Score
- Average ACT Score
- Senior Class Size
- College Admissions Highlights
- Academic Highlights
Now, let’s look at the best private schools in San Antonio:
1) Keystone School
Location: 119 E Craig Pl, San Antonio, TX 78212
Tuition (9-12): $23,095
Enrollment (seniors): 29
Average SAT Score: 1404
Average ACT Score: 32
College Admissions Highlights:
From 2015-2020, large numbers of Keystone grads matriculated into UT Austin (26), Trinity University (11), SMU (8), Northeastern (4), NYU (4), Stanford (3), UNC Chapel Hill (3), Vanderbilt (3), Georgetown (3), WashU (3), UCLA (3), Penn (2), USC (2)), Claremont McKenna (2), Emory (2), and Tufts (2).
Academic Highlights:
- 80% of teachers possess advanced degrees.
- The average class size is between 16 and 18 students.
- 60% identify as students of color.
- Teachers have an average of 20 years of teaching experience.
- 86% score a 3 or better on AP exams.
2) Geneva School of Boerne
Location: 113 Cascade Cavern, Boerne, TX 78015
Tuition (9-12): $13,875
Enrollment (seniors): 54
Average SAT Score: 1227
Average ACT Score: 26
College Admissions Highlights:
In the last decade, students have matriculated into the following highly-selective colleges: William & Mary, Holy Cross, Pepperdine, Purdue, Sewanee – The University of the South, SMU, Notre Dame, Penn, UT Austin, UVA, Vanderbilt, and Washington & Lee.
Academic Highlights:
- The Class of 2022 had six students who were National Merit-recognized.
- 51-acre campus.
- 60% of faculty have advanced degrees.
- The Class of 2022 had a 3.87 median GPA.
- 11 AP courses are available.
3) Providence Catholic School
Location: 1215 N St Mary’s St, San Antonio, TX 78215
Tuition (9-12): $11,247
Enrollment (6-12): 235
Average SAT Score: Not Reported
Average ACT Score: Not Reported
College Admissions Highlights:
“Each year 100% of Providence graduates are accepted to a college or university of their choice. Students have been accepted to top local, state, and national schools such as Stanford, Purdue, the United States Military Academy at West Point, Marquette, Johns-Hopkins, The Air Force Academy, Notre Dame, Swarthmore, and many more.”
Academic Highlights:
- Providence is an all-girls institution.
- 12 AP courses are offered.
- 5 dual enrollment courses are available.
- Collectively, students earn $10 million in college scholarship offers each year.
- Strong visual and performing arts program.
4) Saint Mary’s Hall
Location: 9401 Starcrest Dr, San Antonio, TX 78217
Tuition (9-12): $31,101
Enrollment (seniors): 90
Average SAT Score: 1322
Average ACT Score: Not Reported
College Admissions Highlights:
Between 2018 and 2022, three or more students matriculated into the following schools: Dartmouth (3), Duke (6), Georgetown (4), Harvard (4), Kenyon (3), NYU (12), Northeastern (4), Northwestern (5), UT Austin (52), Trinity University (20), Tulane (10), UMich (4), UNC Chapel Hill (3), USC (3), UVA (4), Vanderbilt (3), Villanova (3), and Washington & Lee (4).
Academic Highlights:
- 59% of faculty possess advanced degrees.
- 64% of students are accepted into their first-choice college.
- There were 20 National Merit Scholars in the Class of 2022.
- The average class size is 15.
- 20 AP courses are on the menu.
5) San Antonio Christian School
Location: 19202 Redland Rd, San Antonio, TX 78259
Tuition (9-12): $15,850
Enrollment (seniors): 69
Average SAT Score: 1166
Average ACT Score: Not Reported
College Admissions Highlights:
Students in the Class of 2022 earned acceptances into colleges such as: Colorado School of Mines, Embry-Riddle, William & Mary, LMU, Pepperdine, Rice, SMU, Texas A&M, Texas Tech, Trinity University, UGA, UT Austin, and the University of Toronto.
Academic Highlights:
- 77% of the Class of 2022 earned a 3.5 or better GPA.
- 48% of faculty hold advanced degrees.
- 62-acre campus.
- The Class of 2022 earned a collective $7.7 million in scholarship offers.
- Average class size of 13 students.
6) Central Catholic High School
Location: 1403 N St Mary’s St, San Antonio, TX 78215
Tuition (9-12): $13,675
Enrollment (seniors): 137
Average SAT Score: 1077
Average ACT Score: Not Reported
College Admissions Highlights:
The Class of 2021 went on to enroll at the following institutions: Colorado School of Mines, FSU, MIT, Purdue, Rice, TCU, Texas Tech, Trinity University, US Air Force Academy, US Naval Academy, UT Austin, Washington University in St. Louis, and Yale.
Academic Highlights:
- Central Catholic in an all-boys institution.
- 83% of faculty members possess advanced degrees.
- 85% of the students identify as Hispanic.
- The median GPA is 3.73.
- 14:1 student-to-faculty ratio.
7) Antonian College Preparatory High School
Location: 6425 West Ave, San Antonio, TX 78213
Tuition (9-12): $12,320
Enrollment (9-12): 724
Average SAT Score: Not Reported
Average ACT Score: Not Reported
College Admissions Highlights:
“Over the past several years, the graduating classes have been accepted by a variety of colleges and universities, including many prominent schools such as Cornell, Olin College of Engineering, Harvard, Yale, MIT, Boston University, Notre Dame, Columbia, Rice, DePaul, and the like.”
Academic Highlights:
- $28.2 million in college scholarships were offered in 2022.
- 14:1 student-to-teacher ratio.
- There are two full-time college counselors.
- 8 academic clubs, 10 service clubs, and over 20 special interests clubs
- Advanced Placement and dual enrollment opportunities are available.
8) St. John Paul II Catholic High School
Location: 6720 FM 482 New Braunfels, Texas 78132
Tuition (9-12): $7,000
Enrollment (9-12): 205
Average SAT Score: Not Reported
Average ACT Score: Not Reported
College Admissions Highlights:
From 2013-2021, notable college acceptances include Boston College, Holy Cross, Pepperdine, Purdue, Rhodes, SMU, Texas A&M, Notre Dame, US Air Force Academy, Villanova, UT Austin, Tulane, Trinity University, SCAD, Syracuse, Baylor, and the Colorado School of Mines.
Academic Highlights:
- The average class size is 10 students.
- 8 students have been named National Merit Commended Scholars.
- 11:1 student-to-teacher ratio.
- 20% earn AP Scholar designations.
- 11 AP courses are available.
9) The Atonement Catholic Academy
Location: 15415 Red Robin Rd, San Antonio, TX 78255
Tuition (9-12): $8,800
Enrollment (seniors): 20
Average SAT Score: 1293
Average ACT Score: Not Reported
College Admissions Highlights:
In the past few years, graduates have been admitted into schools like the US Naval Academy, Stanford, Notre Dame, Rice, Duke, Washington & Lee, Boston College, UC Berkeley, and the University of St. Andrews in Scotland.
Academic Highlights:
- 18 is the average class size.
- Students maintain an average GPA of 90.3.
- 5-10% of seniors earn National Merit recognition.
- 8 AP courses are offered.
- Students collectively earn more than $2 million in scholarships each year.
10) TMI Episcopal
Location: 20955 Tejas Trl W, San Antonio, TX 78257
Tuition (6-12): $29,477
Enrollment (seniors): 470
Average SAT Score: Not Reported
Average ACT Score: Not Reported
College Admissions Highlights:
Members of the Class of 2022 earned acceptances into the following colleges: Boston College, Brown, Case Western, Denison, Harvard, Lehigh, Purdue, SMU, Syracuse, TCU, UNC Chapel Hill, UT Austin, UC Berkeley, UCLA, Notre Dame, University of Richmond, USC, Vanderbilt, and Vassar.
Academic Highlights:
- Founded in 1893.
- 30% of students are cadets in JROTC.
- The school offers a boarding option.
- 20 AP courses are offered.
- 74% of teachers have advanced degrees.
Best Private Schools in San Antonio – Additional Resources
We hope you found our blog on private schools in San Antonio (and the surrounding suburbs) to be helpful. All high school students and families may wish to explore further information regarding the college search and admissions process at our Dataverse, Blog, and List-Building Tool.


Dave has over a decade of professional experience that includes work as a teacher, high school administrator, college professor, and independent educational consultant. He is a co-author of the books The Enlightened College Applicant (Rowman & Littlefield, 2016) and Colleges Worth Your Money (Rowman & Littlefield, 2020).