#25 Largest Private Schools in Texas
British International School of Houston
Independent school · Grades Pre-K–12
939 students
Katy, TX
A-Overall grade939 students10 students per teacher
2026 lists
Largest Private Schools in Texas
The private schools in Texas with the most students. Top 50 of 1,015 schools.
#26 Largest Private Schools in Texas
St. Agnes Academy College Preparatory
Independent Catholic school · Grades 9–12
934 students
Houston, TX
A+Overall gradeAll girls934 students13 students per teacher
#27 Largest Private Schools in Texas
Southwest Christian Scho0l
Christian school (nondenominational) · Grades Pre-K–12
897 students
Fort Worth, TX
AOverall grade897 students9 students per teacher
#28 Largest Private Schools in Texas
Southwest Christian School
Christian school (nondenominational) · Grades Pre-K–12
896 students
Fort Worth, TX
BOverall grade896 students10 students per teacher
#29 Largest Private Schools in Texas
Bay Area Christian School
Christian school (nondenominational) · Grades K–12
895 students
League City, TX
BOverall grade895 students13 students per teacher
#30 Largest Private Schools in Texas
San Antonio Christian School
Christian school (nondenominational) · Grades Pre-K–12
878 students
San Antonio, TX
B-Overall grade878 students
#31 Largest Private Schools in Texas
St. Gabriel's Catholic School
Independent Catholic school · Grades Pre-K–12
873 students
Austin, TX
A+Overall grade873 students8 students per teacher
#32 Largest Private Schools in Texas
Cypress Christian School
Christian school (nondenominational) · Grades K–12
830 students
Houston, TX
BOverall grade830 students12 students per teacher
#33 Largest Private Schools in Texas
Episcopal High School Bellaire
Episcopal school · Grades 9–12
821 students
Bellaire, TX
B-Overall grade821 students22 students per teacher
#34 Largest Private Schools in Texas
Avvai Tamil Center
Independent school · Grades K–8
814 students
Frisco, TX
B-Overall grade814 students7 students per teacher
#35 Largest Private Schools in Texas
St. Thomas Aquinas Catholic School
Parish school · Grades Pre-K–8
812 students
Dallas, TX
BOverall grade812 students14 students per teacher
#36 Largest Private Schools in Texas
St. Francis Episcopal School
Episcopal school · Grades Pre-K–12
805 students
Houston, TX
AOverall grade805 students12 students per teacher
#37 Largest Private Schools in Texas
River Oaks Baptist School
Baptist school · Grades Pre-K–8
799 students
Houston, TX
BOverall grade799 students12 students per teacher
#38 Largest Private Schools in Texas
The Brook Hill School
Christian school (nondenominational) · Grades Pre-K–12
793 students
Bullard, TX
A-Overall grade793 students11 students per teacher
#39 Largest Private Schools in Texas
The Woodlands Christian Academy
Calvinist school · Grades Pre-K–12
780 students
The Woodlands, TX
A+Overall grade780 students8 students per teacher
#40 Largest Private Schools in Texas
Hyde Park Schools
Baptist school · Grades Pre-K–12
763 students
Austin, TX
A-Overall grade763 students9 students per teacher
#41 Largest Private Schools in Texas
Islamic School of Irving
Islamic school · Grades Pre-K–12
749 students
Irving, TX
A+Overall grade749 students9 students per teacher
#42 Largest Private Schools in Texas
St. Rita Catholic School
Parish school · Grades Pre-K–8
731 students
Dallas, TX
B+Overall grade731 students11 students per teacher
#43 Largest Private Schools in Texas
Trinity Christian School
Christian school (nondenominational) · Grades Pre-K–12
721 students
Lubbock, TX
BOverall grade721 students10 students per teacher
#44 Largest Private Schools in Texas
Antonian College Preparatory High School
Diocesan school · Grades 9–12
717 students
San Antonio, TX
A+Overall grade717 students12 students per teacher
#45 Largest Private Schools in Texas
The Covenant School
Christian school (nondenominational) · Grades K–12
717 students
Dallas, TX
AOverall grade717 students8 students per teacher
#46 Largest Private Schools in Texas
The Covenant School of Dallas
Christian school (nondenominational) · Grades K–12
714 students
Dallas, TX
BOverall grade714 students8 students per teacher
#47 Largest Private Schools in Texas
Duchesne Academy of the Sacred Heart
Independent Catholic school · Grades Pre-K–12
713 students
Houston, TX
A+Overall gradeAll girls713 students8 students per teacher
#48 Largest Private Schools in Texas
Austin Peace Academy
Islamic school · Grades Pre-K–12
708 students
Austin, TX
A+Overall grade708 students8 students per teacher
From official public records, updated October 2026.