St. Agnes Academy
If you are exploring Catholic schools in Houston, TX, you are likely doing more than just comparing
tuition and
academic courses. You are trying to picture your daughter four years from now.
Will she be confident, grounded in her faith, and ready for college and the world beyond it?The search for the best private high school for your child often feels overwhelming because the stakes are high. These formative years shape identity, ambition, and belief.
At St. Agnes Academy, we understand that parents are not simply choosing a school. They are
choosing an environment that will influence who their daughter becomes.
Learn why families across Houston have trusted St. Agnes for over a century to provide an education rooted in academic excellence, faith formation, and purposeful leadership.
What Separates St. Agnes From Other Catholic Schools in Houston, TX?
Families choose St. Agnes because they see a place where their daughters are known, challenged, and inspired to become the young women God has called them to be. Learn more about the defining characteristics of our educational experience!
A Private School Where Young Women Lead
One of the defining characteristics of St. Agnes is the culture of leadership that emerges in an
all-girls environment. When girls are given space to lead consistently, they rise to the expectation. While in classrooms, on stages, in laboratories, and on athletic fields, students learn that their voice matters.
Our academic program reflects both rigor and intentional support. Students can pursue 25 AP courses and numerous Honors offerings, and 97% of AP exam scores are a 3 or higher.
More importantly, students develop the confidence to pursue challenging opportunities because they believe they belong there. The academic experience at St. Agnes includes:
Advanced coursework designed to stretch and prepare students for competitive universities
A 9:1 student-to-faculty ratio that allows teachers to mentor, not just instruct
An average class size of 17, creating space for discussion and collaboration
A 98% four-year college matriculation rate
Graduates attend respected institutions such as Stanford University, Yale University, Rice University, and the University of Texas at Austin. They leave academically prepared and confident in their ability to contribute meaningfully.
Faith That Is Formed Through Experience
Every day, students are encouraged to ask thoughtful questions, reflect deeply, and live out their beliefs with integrity. Your daughter’s spiritual journey will be shaped through:
Four years of theology rooted in Catholic tradition
Regular Mass and prayer opportunities
A community service commitment that connects learning to action
Approximately 65% of our students identify as Catholic, while others come from a variety of faith backgrounds. This diversity fosters respectful dialogue and strengthens the sense of shared purpose on campus. Faith at St. Agnes is not simply taught; it is practiced and lived.
Opportunities That Build Confidence Beyond the Classroom
High school should be a time of exploration. Students need space to discover interests, test their strengths, and take healthy risks.
With hundreds of young women on campus, St. Agnes offers a vibrant, supportive environment where girls can grow at their own pace. Our students engage in the following ways to build a healthy community culture:
Research consistently shows that graduates of all-girls schools demonstrate stronger academic engagement and leadership confidence. At St. Agnes, those qualities develop organically because girls are given consistent opportunities to lead.
Excellence That Remains Accessible
When parents evaluate Catholic schools, they often wonder whether excellence comes at the cost of financial accessibility. At St. Agnes, we are committed to ensuring that exceptional education remains within reach for families who value faith and academic rigor:
We believe that a Catholic education rooted in purpose and truth should be available to families across our city, no matter their background.
Find Help Choosing the Right Catholic School in Houston
As you narrow your options among Catholic schools in Houston, TX, it is helpful to look beyond rankings and statistics. Those markers of success are important, but they tell only part of the story. The more meaningful question is how your daughter will grow during these formative years.
At St. Agnes, she will be challenged academically, formed spiritually, and supported by a sisterhood that encourages her to lead. She will discover her strengths, deepen her faith, and develop the confidence to step into the future with clarity and conviction.