Top High Schools in the San Antonio, TX Area: How They Compare for College Admissions

February 12, 2025

San Antonio is the seventh-largest city in the United States. Its secondary school landscape reflects that scale in turn. The metro spans multiple independent school districts, a robust charter sector, and several long-established private schools. For college-bound students, choosing among them means navigating nationally ranked charters, specialized magnets, and globally oriented programs. One school, Saint Mary’s Hall, traces its roots to 1879 as a flagship NAIS independent institution.

The schools covered here fall across four categories: public charter, public magnet, traditional public, and independent. Across these categories, pathways to selective college admission diverge sharply in several ways:

  • Academic model (AP-intensive charter vs. theme-based magnet vs. comprehensive suburban public)
  • Access to individualized college counseling versus high-caseload environments
  • How well a school’s profile travels beyond Texas flagship pipelines to national selective admissions offices
  • Availability of specialized tracks in STEM, global studies, or health sciences
  • The degree to which internal school competition shapes class rank and GPA context

What follows is a school-by-school breakdown, examining how each of San Antonio’s top secondary options stacks up for college-bound students.

The San Antonio College Admissions Landscape: What Families Need to Know

A Large City with a Modest Selective Footprint

San Antonio sits in an unusual position within national admissions circles. It is one of America’s largest cities. Nevertheless, its presence in selective admissions pipelines is modest relative to Houston, Dallas, or Austin. Most competitive San Antonio applicants attend charter or magnet schools. Traditional comprehensive high schools, meanwhile, function primarily as UT Austin and Texas A&M pipelines.

The Texas Auto-Admit Tension

Texas’s automatic admissions policies shape planning throughout the metro. Students who graduate in the top 10% earn automatic admission to most Texas public universities, including Texas A&M. UT Austin, however, now restricts auto-admit to the top 5% of graduating classes. Even then, desired major access is not guaranteed. This creates a strategic tension for San Antonio students. Graduating near the top of a large, less rigorous school may unlock automatic admission. That said, it can also signal limited course rigor to selective out-of-state colleges. Conversely, attending BASIS or YWLA produces a more compelling academic profile, even if class rank suffers.

National Visibility and Local Competition

Admissions offices at Vanderbilt, Georgetown, Emory, or Rice do recruit in San Antonio. The volume of competitive local applicants remains modest relative to Houston or Dallas feeder schools. On one hand, a strong BASIS Shavano or YWLA applicant faces relatively little local competition for elite spots. Counselors at Princeton or Northwestern, on the other hand, will need context to evaluate many San Antonio school environments properly.

Local College Options and Strategic Positioning

UTSA, the local UT system campus, accepts roughly 88% of applicants. It serves largely as a commuter institution for metro families. Trinity University, by contrast, carries a 28% acceptance rate as the city’s selective private liberal arts option. Because Trinity draws heavily from Houston, well-prepared San Antonio applicants may find genuine opportunity there. Understanding where each school sits in the local hierarchy is accordingly the core planning task. Knowing how to leverage that positioning for selective admissions is equally important.

Charter and Magnet Schools: How the Top Specialized Options Compare

The following table summarizes key metrics for San Antonio’s highest-ranked charter and magnet high schools.

School U.S. News TX Rank U.S. News National Rank AP Participation Rate Graduation Rate Student-Teacher Ratio Enrollment (9–12 approx.)
BASIS San Antonio – Shavano Campus #7 #58 100% 98% 18:1 ~650 (est. of 1,038 total 6–12)
Young Women’s Leadership Academy #11 #98 100% 90%–100% 15:1 ~350 (est. of 521 total 6–12)
Health Careers High School #16 #137 94% 99.5% 16:1 ~921
International School of the Americas #99 #752 80% 99.1% 11:1 ~496

BASIS San Antonio – Shavano Campus

Public Charter (STEM-focused) · North San Antonio, TX (BASIS Texas School District)

Metric Data
U.S. News Texas Rank #7
U.S. News National Rank #58
U.S. News STEM Rank #18 nationally
U.S. News Charter Rank #14 nationally
Enrollment (grades 6–12) ~1,038
Student-Teacher Ratio 18:1
AP Participation Rate 100%
Graduation Rate 98%
Admission Open enrollment lottery
Academic Model

BASIS San Antonio – Shavano Campus is the highest-ranked traditional high school in San Antonio by virtually every public metric. U.S. News places it 7th in Texas and 58th nationally. It operates under the BASIS Texas charter network. Furthermore, that network applies one of the most academically demanding curricula in American public education. All students take AP courses across a broad subject range. Every student also sits for AP exams, which drives the school’s 100% AP participation rate.

The curriculum draws on a rigorous international academic tradition. Students master advanced content in STEM fields, humanities, and social sciences simultaneously. Course sequencing at Shavano is considerably compressed relative to traditional campuses. Students typically encounter material in grades 9 and 10 that would appear in grades 11 or 12 elsewhere.

Total enrollment spans grades 6 through 12, totaling approximately 1,038 students. Grades 9 through 12 accordingly represent a smaller subset, averaging roughly 600 to 650 students. The student-teacher ratio of 18:1 is modestly above the Texas state average of 14:1. Math and reading proficiency scores rank in the top 1% of all Texas schools: 87% math proficiency versus 44% statewide, and 90% reading proficiency versus 51% statewide.

Extracurriculars and Programming

BASIS Shavano supports clubs in robotics, debate, academic competitions, and arts. The school’s STEM identity shapes extracurricular culture broadly. Many students participate in Science Olympiad, math competitions, and university research programs. Access to external STEM competitions and selective summer programs is a major differentiator for Shavano students applying to selective colleges.

Admission is by open enrollment lottery, requiring no entrance examination. Families apply during the annual open enrollment window. Attrition from middle to high school is notable across many BASIS campuses nationally as the academic pace intensifies. Families should therefore account for this transition risk when evaluating fit.

From a College Admissions Standpoint

BASIS Shavano is San Antonio’s most nationally legible charter for selective college admissions. Its top-60 national ranking means counselors at most selective colleges have encountered BASIS profiles before. The universal AP participation, combined with strong state proficiency scores, creates a consistent rigor narrative. Moreover, students who layer in STEM research, national competition recognition, or dual enrollment can build profiles competitive at Rice, UT Austin selective programs, Emory, and similarly demanding institutions. That said, the school’s relatively high student-teacher ratio and limited counseling infrastructure mean families should not assume in-house support matches the academic intensity. Students targeting highly selective colleges benefit considerably from external counseling to develop a strategic plan well before junior year.

Young Women’s Leadership Academy

Public Charter (All-Girls, College-Preparatory) · San Antonio, TX (SAISD)

Metric Data
U.S. News Texas Rank #11
U.S. News National Rank #98
Enrollment (grades 6–12) ~521
Student-Teacher Ratio 15:1
AP Participation Rate 100%
AP Courses Offered 18
Graduation Rate 90%–100%
Average SAT (Class of 2023) 1175
Average ACT 24.6
Network Young Women’s Preparatory Network
Admission Bexar County lottery (open to girls)
Academic Model

The Young Women’s Leadership Academy (YWLA) is San Antonio’s second-highest-ranked public school. U.S. News places it 11th in Texas and 98th nationally. It operates as a tuition-free, lottery-admission school within SAISD, open to girls in Bexar County in grades 6 through 12. YWLA is part of the Young Women’s Preparatory Network, a Dallas-based nonprofit. Specifically, that network operates the country’s largest system of all-girls’ public college-preparatory schools.

The academic model centers on college preparation, leadership development, and active civic engagement. Every student takes at least one AP course, maintaining a 100% participation rate across 18 AP subjects. YWLA earned a place on College Board’s AP School Honor Roll. Specifically, the school achieved above 100% on three metrics: College Culture, College Credit, and College Optimization. Average SAT scores for Class of 2023 graduates stood at 1175, with an average ACT of 24.6.

Notably, YWLA serves a student body that is predominantly economically disadvantaged and largely first-generation college-bound. This context matters deeply for admissions evaluation: 49% of students qualify as economically disadvantaged, yet 100% of graduates have historically enrolled in four-year colleges.

Extracurriculars and College Placement

YWLA supports eight interscholastic sports and a range of clubs, including student government and academic competitions. Leadership development programming is structured and intentional across all grade levels. College counseling is a core institutional priority. The school dedicates significant resources to college search, application support, and scholarship navigation. Accordingly, 100% of graduates matriculate to four-year institutions each year.

From a College Admissions Standpoint

YWLA produces one of the most compelling admissions stories in San Antonio, specifically for students applying to selective colleges that value context alongside credentials. A top-100 national ranking, 100% AP participation, and 100% four-year college placement from a school serving largely economically disadvantaged students signal genuine institutional quality. In particular, admissions offices at competitive universities are increasingly attentive to this kind of school context. A YWLA student with strong AP scores and documented leadership impact can build a profile competitive at Rice, Vanderbilt, and colleges like Wellesley or Spelman. Strong Texas flagship outcomes are well within reach for high-performing students. The student-teacher ratio of 15:1 is favorable relative to comprehensive schools. In-house counseling is strong for the public-school sector. External strategy support remains valuable, however, for students targeting highly selective institutions where differentiation at the margins matters most.

Health Careers High School

Public Magnet (Healthcare Sciences) · San Antonio, TX (Northside ISD)

Metric Data
U.S. News Texas Rank #16
U.S. News National Rank #137
Enrollment ~921
Student-Teacher Ratio ~16:1
AP Participation Rate 94%
Graduation Rate 99.5%
Average SAT (Class of 2023) 1164
Average ACT 26.7
Texas Accountability Rating (2024–25) A
Admission Application-based (magnet)
Academic Model

Health Careers High School is Northside ISD’s dedicated healthcare sciences magnet school. Enrollment stands at roughly 921 students, admitted through an application process. U.S. News ranks it 16th in Texas and 137th nationally, consistently placing it among San Antonio’s top three public schools. The Texas Education Agency awarded Health Careers an A accountability rating for 2024–25. This reflects strong outcomes across college readiness, student progress, and graduation metrics.

Academic identity here is anchored in healthcare and biomedical sciences. Students pursue a curriculum blending AP coursework with health sciences pathways, clinical experiences, and hospital mentorship partnerships. Average teacher experience of 12.4 years, above the state average, reflects a stable instructional environment with genuine subject-matter expertise.

AP participation at Health Careers is 94%. The graduation rate of 99.5% for the Class of 2023 is among the highest of any school in the metro. Average ACT scores of 26.7 are notably above the Texas state average. A student-teacher ratio of approximately 16:1 provides a reasonably personalized environment for a school of nearly 1,000 students.

Extracurriculars and Programming

Health Careers offers sports in cross country, golf, track, swimming, tennis, and water polo. The school’s thematic focus shapes extracurricular culture broadly. Many students pursue HOSA (Health Occupations Students of America), health-adjacent clubs, and community service in clinical settings. This emphasis on professional development translates naturally into medical, nursing, and public health application essays.

From a College Admissions Standpoint

Health Careers High School is San Antonio’s strongest pathway for students with genuine pre-healthcare interests. The school’s national ranking, near-perfect graduation rate, and clinical pathway access create a specific and credible pre-health narrative. This narrative generalizes well beyond Texas flagships. Average ACT scores of 26.7 suggest a student body meaningfully above the Texas average, giving strong students a competitive internal context for demonstrating class rank. For a student targeting premed programs at UT Austin, Baylor, or Rice, Health Careers offers both a rigorous foundation and an unusually coherent application story. Out-of-state programs like Emory or Tulane are similarly well-served by this profile. Students whose intellectual interests lie entirely outside health and science, however, may find the thematic environment less reinforcing. External advising is valuable for students targeting highly selective institutions, given the school’s still-developing national profile outside Texas.

International School of the Americas

Public Magnet (Global Studies) · North San Antonio, TX (North East ISD)

Metric Data
U.S. News Texas Rank #99
U.S. News National Rank #752
Enrollment (grades 9–12) ~496
Student-Teacher Ratio 11:1
AP Participation Rate 80%
Graduation Rate 99.1%
Average SAT (Class of 2023) 1114
Average ACT 24.3
Admission Open lottery (NEISD district-wide)
Founded 1994
Academic Model

The International School of the Americas (ISA) is a North East ISD magnet school serving approximately 496 students in grades 9 through 12. Founded in 1994 and intentionally kept small, ISA operates on the Lee High School campus. Admission is by lottery, open to students across the NEISD district. The school’s mission is to develop globally-focused students through experiential and interdisciplinary learning.

ISA’s academic model is distinctive within the San Antonio market. Specifically, the school treats all students as gifted and talented, designing its curriculum around global issues analysis, interdisciplinary thinking, and applied portfolio development. Students participate in annual week-long international travel experiences and professional internships. These experiences build real-world context into their academic work. An 11:1 student-teacher ratio, the most favorable of any school in this survey, ensures a highly personalized instructional environment.

AP participation at ISA is 80%, with a near-perfect graduation rate of 99.1%. Average SAT scores of 1114 and ACT scores of 24.3 for Class of 2023 graduates are competitive relative to San Antonio comprehensive schools. Since 2018–19, the school has earned four College Success Awards from GreatSchools, reflecting consistent college-readiness outcomes.

Extracurriculars and Programming

ISA is nationally recognized for its Model United Nations program. MUNSA (Model United Nations San Antonio) is the largest student-run MUN conference in the country. It draws hundreds of delegates from across the region annually. Students who lead MUNSA build organizing, diplomacy, and policy experience that is both substantive and legible to selective college admissions offices. The school’s culture of international engagement extends further to guest speakers, community partnerships, and portfolio-based capstone projects.

From a College Admissions Standpoint

ISA occupies a distinctive niche in San Antonio’s admissions landscape. Its 11:1 student-teacher ratio, experiential learning model, and internationally oriented programming create an application profile unlike any other public school in the metro. Students interested in international relations, public policy, political science, or global business can build a coherent and differentiated narrative that extends naturally from ISA’s identity. The MUNSA leadership opportunity, in particular, is among the strongest extracurricular platforms available to any San Antonio high schooler for signaling organizational leadership at scale. However, admissions offices outside Texas may not immediately recognize ISA’s standing. Its national U.S. News rank of 752 does not reflect the school’s unusually personalized model or nationally recognized programming. Students must therefore be intentional about contextualizing their ISA experience in applications. External counseling is particularly valuable here to frame what the school offers in terms that travel nationally.

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Traditional Public Schools: How the Leading Comprehensive Options Compare

The following table covers San Antonio’s most prominent traditional and suburban public high schools for college-bound students.

School U.S. News TX Rank U.S. News National Rank AP Participation Rate Graduation Rate Student-Teacher Ratio Enrollment (9–12)
Alamo Heights High School #189 #1,759 69% 97%–98% 14:1 ~1,569
Ronald Reagan High School (NEISD) #125 #1,029 64% ~90% 19:1 ~3,403

Alamo Heights High School

Public · Alamo Heights, TX (Alamo Heights ISD)

Metric Data
U.S. News Texas Rank #189
U.S. News National Rank #1,759
Enrollment (grades 9–12) ~1,569
Student-Teacher Ratio 14:1
AP Participation Rate 69%
Graduation Rate 97%–98%
Average SAT ~1240
Average ACT ~27
Academic Model

Alamo Heights High School is the only high school in Alamo Heights ISD, serving approximately 1,569 students. It sits in one of San Antonio’s most affluent and academically oriented suburban communities. U.S. News ranks it 189th in Texas and 1,759th nationally. These rankings, while not top-tier, nonetheless reflect Alamo Heights’ position as the strongest traditional comprehensive public school in the metro for families outside the charter and magnet system.

The AP catalog covers most standard subject areas, with 69% student participation. Average SAT scores of approximately 1240 and ACT scores of approximately 27 are considerably above Texas public school averages. The student-teacher ratio of 14:1 sits at the Texas state average, providing reasonable class sizes without the intimacy of specialized programs.

Alamo Heights is notably cohesive as a school community. Because the district is small, students and families often develop close relationships with counselors and teachers over four years. This continuity benefits college application preparation, particularly for students who pursue personalized guidance early.

Extracurriculars and College Placement

Alamo Heights competes at the UIL Class AAAAA level. The school supports a gifted program, broad AP coursework, and extracurricular depth across athletics, fine arts, and student government. Students from Alamo Heights regularly attend Texas flagships alongside a range of selective out-of-state universities.

From a College Admissions Standpoint

Alamo Heights is the premier traditional public option for San Antonio families who value neighborhood school culture alongside genuine college-preparatory rigor. Average scores around 1240 SAT and 27 ACT, combined with a strong community relationship model and solid AP access, position motivated students for meaningful admission outcomes. Students targeting highly selective national universities, however, need to demonstrate they have pushed well beyond the Alamo Heights median. Taking the most rigorous AP sequence available, earning strong exam scores, and building extracurricular differentiation beyond school-level participation are each essential. The Texas Top 5% and Top 10% rules are strategically significant here. High class rank at Alamo Heights can provide a reliable pathway to both UT Austin and Texas A&M, preserving selectivity and flagship access simultaneously.

Ronald Reagan High School

Public · North San Antonio, TX (North East ISD)

Metric Data
U.S. News Texas Rank #125
U.S. News National Rank #1,029
Enrollment (grades 9–12) ~3,403
Student-Teacher Ratio 19:1
AP Participation Rate 64%
AP Exam Pass Rate (3+, 2022) 73%
Graduation Rate ~90%
Texas Accountability Rating (2024–25) A
Academic Model

Ronald Reagan High School is among San Antonio’s largest high schools. Enrollment reaches approximately 3,403 students in grades 9 through 12. U.S. News ranks it 125th in Texas and 1,029th nationally. The Texas Education Agency awarded the school an A accountability rating. Its curriculum, moreover, encompasses AP coursework, dual credit, and dual enrollment options alongside standard college-preparatory instruction.

AP access at Reagan is extensive. In 2022, approximately 1,531 students enrolled in AP classes, generating 3,425 total AP enrollments. The 73% AP exam pass rate (score of 3 or higher) is above the national average, reflecting meaningful engagement from students who pursue the most rigorous options. Additionally, the school offers AVID, dual credit through Alamo Colleges, and career exploration pathways for students building practical post-secondary plans.

A 19:1 student-teacher ratio reflects the large comprehensive campus. Individual attention depends heavily on a student’s own initiative in this environment. Located on San Antonio’s far north side, the school serves as one of eight high schools within NEISD.

Extracurriculars and Programming

Reagan supports more than 90 clubs and organizations alongside strong athletic and fine arts programs. The jazz ensemble and chamber groups have received regional and national recognition, including an appearance at the Midwest Clinic. An acclaimed marching band program, among NEISD’s largest, further extends the school’s arts profile. Students with strong performing arts or athletic backgrounds at Reagan can, in turn, develop the sustained extracurricular identity that complements strong academic coursework.

From a College Admissions Standpoint

Ronald Reagan High School is a solid college-preparatory environment for students who take full advantage of its most rigorous offerings. Colleges reading Reagan applications will understand the school as a large, comprehensive suburban campus. That context means strong students need to demonstrate active pursuit of challenge, not just high GPA by default. The school’s A accountability rating, 73% AP pass rate, and dual credit access confirm that the academic ceiling is legitimate. Students targeting UT Austin, Texas A&M, or similarly selective universities should maximize their AP course load, maintain strong exam scores, and build a differentiated extracurricular profile. The school’s 19:1 student-teacher ratio and large enrollment mean counselor caseloads are substantial. Students who benefit from individualized college strategy would accordingly do well to supplement school advising with external support.

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Independent Schools: Saint Mary’s Hall

Saint Mary’s Hall

Independent (Non-Sectarian) · San Antonio, TX

Metric Data
Grades Served Montessori (age 3) through Form 12 (Grade 12)
Total Enrollment (all grades) ~790
Student-Teacher Ratio 8:1
NAIS Member Yes (also ISAS and AMS accredited)
Average SAT ~1370
Average ACT ~32
Graduation Rate 100%
Founded 1879
Campus 60 acres, suburban
Notable College Placement Washington University in St. Louis, Georgetown, UT Austin, and more
Academic Model

Saint Mary’s Hall (SMH) is the oldest and most prominent independent school in San Antonio. Founded in 1879 as an Episcopalian institution, it now operates as a non-denominational, co-educational college-preparatory day school. SMH holds membership in the National Association of Independent Schools (NAIS), the Independent Schools Association of the Southwest (ISAS), and the American Montessori Society (AMS). These affiliations collectively reflect the breadth of its program from early childhood through Form 12.

The school occupies a 60-acre campus near Salado Creek on the city’s north side. Total enrollment across all grades is approximately 790. The upper school maintains an 8:1 student-teacher ratio, the most favorable of any school in this survey. Average class sizes in the upper school are consequently small, typically fewer than 20 students, and often considerably smaller in advanced courses.

SMH ranks among the top 20% of private schools in Texas across multiple dimensions: highest average SAT scores, highest average ACT scores, highest percentage of faculty with advanced degrees, most AP courses offered, and most extracurriculars offered. Average SAT scores of approximately 1370 and ACT scores of approximately 32 exceed the median profiles of many Texas flagship admits. In turn, these figures approach the score ranges of incoming classes at a range of nationally selective colleges.

Extracurriculars and College Placement

Saint Mary’s Hall supports competitive athletics, extensive fine arts programming, and a broad club landscape. Small enrollment means students frequently hold multiple leadership positions simultaneously. This multi-dimensional record is exactly the kind of profile selective colleges value most. Published matriculation data reflects recent placements at Washington University in St. Louis (10 students in recent classes), Georgetown, UT Austin, and a range of other selective institutions. The school uses Scoir for college search management and employs dedicated counselors who begin engaging students well before senior year.

From a College Admissions Standpoint

Saint Mary’s Hall is San Antonio’s clearest analog to the independent school experience that selective colleges know well from other metro markets. Its NAIS membership, 8:1 student-teacher ratio, 100% graduation rate, and average SAT near 1370 create a profile that translates credibly to admissions offices at Rice, Washington University in St. Louis, and Georgetown. Colleges reading an SMH application will understand the school context immediately. Counselor recommendations from a small, individualized program carry real weight in this context. Students should nonetheless engage proactively with the counseling team early. Even at a strong independent school, differentiation within a small but competitive senior cohort requires intentional strategy. The school’s liberal arts breadth, strong AP access, and fine arts integration, moreover, position students well for crafting the rich, specific college essays that highly selective admissions offices find memorable.

How College Transitions Helps San Antonio-Area Families

College Transitions works with students across the full San Antonio secondary school landscape. We help families:

  • Understand how selective admissions offices read each specific San Antonio school context, from BASIS Shavano’s nationally recognized charter profile to the strategic nuances of Alamo Heights’ traditional public positioning
  • Build course selection strategies that maximize academic signaling within each school’s curriculum, including navigating AP exam strategy, dual credit, and Texas Top 5% versus Top 10% tradeoffs
  • Develop multi-year extracurricular plans that move beyond school-level participation toward the external validation, research, and national recognition that distinguish competitive applicants in a mid-visibility metro market
  • Construct data-driven, balanced college lists that account for Texas flagship dynamics, Trinity University merit aid opportunities, and out-of-state selective options with genuine receptivity to strong San Antonio profiles
  • Write application essays that give admissions readers a clear, specific picture of each student’s intellectual identity and ambitions, a skill especially important from a city where selective college visibility remains lower than in Houston or Dallas

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Final Thoughts

BASIS San Antonio – Shavano Campus and YWLA sit at the top of San Antonio’s public-school hierarchy for selective college admissions. Each school brings national rankings, 100% AP participation, and strong college placement records. Health Careers High School occupies a unique and strategically valuable position for students with genuine pre-healthcare or biomedical interests, offering a near-perfect graduation rate and a thematic application narrative with real depth. The International School of the Americas, meanwhile, provides the metro’s most individualized public-school environment alongside a nationally recognized Model UN platform that elevates applications in political science, global studies, and public policy.

For families considering traditional and independent options, Alamo Heights High School is the strongest suburban comprehensive choice. Above-average SAT scores and a close-knit community culture serve motivated students effectively. Ronald Reagan High School in NEISD, meanwhile, serves a large population competently, and students who pursue the most rigorous sequence available can build genuinely competitive profiles for Texas flagships and selective national colleges. Saint Mary’s Hall is clearly the premier independent option: its NAIS membership, 8:1 student-teacher ratio, and individualized counseling provide a level of institutional support that public schools in the metro cannot match.

Wherever your student attends, College Transitions helps families in the San Antonio area turn strong academic options into clear, differentiated admissions plans.

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