All Girls High School

St. Mary’s Academy High School excels at preparing young women for leadership in a global society. Our goal is to empower our students through the development of analytical skills, confidence, and generosity to make a difference in the world around them.

As a rigorous college-preparatory school, our seminar-style classes encourage inquiry, debate, and cooperative learning. Our unique Block System schedule consists of four ninety-minute class periods. This proven approach to learning fully engages and focuses your daughter while allowing her to enjoy a fresh slate of classes come January.

Walking through the halls of the high school, you will immediately notice a dramatically different atmosphere – one where girls take center stage. Our students are challenged by their peers to achieve more; they feel more comfortable being themselves and expressing their ideas; and they show greater gains on core academic and life skills.

Our High School students typically push themselves beyond expectations—enrolling in several Advanced Placement classes and taking more than the required number of course credits.

High School Principal's Blog

Choose Courage Over Comfort
Iswari Natarajan


I experience a deep sense of discomfort when the following words appear on my computer screen: “An update is now available for your Mac.” My default response is to click on “Remind me later,” and quickly move on. It is the same feeling I get when I try something new, or when I take a risk, or when I step outside of my comfort zone. It is also in these very moments when I make the conscious decision of choosing courage over comfort that I find myself growing the most.

In the words of Brene Brown, “Integrity is choosing courage over comfort; choosing what is right over what is fun, fast, or easy; and choosing to practice our values rather than simply professing them. Today, I will choose courage over comfort.”  She is a researcher, storyteller, teacher, and author. As my students would say -- Brene Brown is my Spirit Animal! As we navigate this new academic year together, here are a few things I would like to share with my students that I have learned from her:

  • Enter the arena, and brave the hot mess: Fear of the unknown often stands between us and our big dreams. When we choose to enter the arena, to rumble with failure, to place one foot in front of the other, to brave the hot mess, that’s when we grow. It is what gets us where we want to go. Have the courage to show up. Always.
  • Choose to belong over fitting-in: Fitting in is about how others perceive us, and what they think of our actions. True belonging is when we are true to ourselves, and when we are real and authentic. Choose to belong instead of fitting in.
  • Lean into the discomfort: The unsettling feeling we experience when we step out of our comfort zone is natural. If we train our brains that this is how it feels when growth happens, and lean into the discomfort, amazing things can happen! You will love the updated version of yourself.

It is time to recalibrate; it is time to choose courage over comfort; it is time for the default response to be to click on  “Update Now.”

2019 High School Retreat - Snow Mountain Ranch

Expect the best from a girl…that’s what you’ll get.

New Research Released December, 2018:
Girls' School Graduates Have a Clear Edge Over Co-educated Peers

Fostering Academic and Social Engagement:
An Investigation into the Effects of All-Girls Education in the Transition to University.  

Prepared by Dr. Tiffani Riggers-Piehl in collaboration with the Higher Education Research Institute (HERI) at the University of California, Los Angeles, this data analysis is an update of the 2009 report commissioned by NCGS and conducted by Dr. Linda Sax and colleagues, including Dr. Riggers-Piehl. 

Fostering Academic and Social Engagement focuses a lens on how graduates of all-girls schools today compare to female graduates of coed schools in terms of their academic characteristics and readiness for university. The findings are extensive and speak highly of the work happening in our schools -- work that is setting up girls' school graduates to be confident and impactful twenty-first century community members, change-makers, and leaders. In summary, the researchers concluded that when compared to their female peers at coed schools, girls' school graduates:

  • Have stronger academic skills
  • Are more academically engaged
  • Demonstrate higher science self-confidence
  • Display higher levels of cultural competency
  • Express stronger community involvement
  • Exhibit increased political engagement



More research from the National Coalition of Girls' Schools:

Education Makes all the Difference for Girls

Single-sex vs. Co-ed Schooling for Girls: What You Need to Know

There are so many ways to get involved in the High School!  



Clubs: Amnesty International Club | Astronomy Club | Chinese Club | Diversity Club | Environmental Club
FOR Club (Friends of Rachel) | French Club | Genetics Club | Karaoke and Crafts Club | Library Advisory Club | Outreach Club | Empty Bowls Club | Pre-Med Club | Journalism Club | UNICEF | World Culture and Geography Club | Ukulele Club


Basketball | Cross Country | Dance Team | Field Hockey | Golf | Lacrosse | Soccer | Swimming and Diving | Tennis | Volleyball

and more!

Model United Nations | Robotics | Musical Theatre | STUCO| Habitat for Humanity | Literary Magazine | United Nations Commission on the Status of Women | Loretto Leadership Council | All Academy Musical | Photography | Mouse Mischief | Border Experience in El Paso | International Summer Immersion Trips | Orchestra


international travel experiences available


of HS faculty have
advanced degrees


of AP Calculus students achieved the maximum score of 5 over the past three years


of students enrolled in at least one Advanced Placement class