As a day and boarding school in the Episcopal tradition, Saint Andrew’s serves 1,335 students from over 40 countries and several states.

The late Alexander D. Henderson Jr., a retired Avon Products, Inc. executive, and his wife, Lucy (Lucia Maria Ernst), provided significant private donations during the early years.

This agreement later included in the school by-laws that the Bishop of the Episcopal Diocese of Southeast Florida be an ex officio member of the Board of Trustees.

The campus and facilities also served as the filming location for the 1968 movie Paper Lion starring Alan Alda, Lauren Hutton, Roy Scheider, and Alex Karras adapted from the George Plimpton autobiographical pro football book of the same name.

In 1977, the School served as camp HQ for the PGA National Academy of Golf that included exhibitions and instruction by Julius Boros and Andy North.

The idea for that chapel and several 'carports' of the same construction that dotted the campus in its early years was the brainchild of Father Raymond M. O'Brien, an original founding faculty member and the school's chaplain, Latin/Theology teacher, and Classical Language Department Head, as a continuing symbol of School heritage.

In 2015, SAS embarked on a new campus master plan, which made improvements and enhancements in the Middle and Upper School areas, including the introduction of the Dr. Albert Cohen Family Center for Entrepreneurial Studies in 2018.