The Spring Branch Independent School District encompass about 44 square miles of wooded suburbs and vibrant business districts located west of downtown Houston along Interstate 10. With an enrollment of more than 35,000 students, SBISD operates 26 traditional elementary schools, seven regular middle schools, four traditional high schools and four special campuses. In addition, SBISD operates two innovative and highly rated, district public charter schools – a middle school, Cornerstone Academy, and Westchester Academy for International Studies.