#1 Largest Private Schools in Dallas County, TX
Episcopal School of Dallas PK-12
Episcopal school · Grades Pre-K–12
1,117 students
Dallas, TX
A+Overall grade1,117 students5 students per teacher
2026 lists
Largest Private Schools in Dallas County, TX
The private schools in Dallas County, TX with the most students. Top 50 of 113 schools.
#2 Largest Private Schools in Dallas County, TX
Parish Episcopal School
Episcopal school · Grades Pre-K–12
1,115 students
Dallas, TX
A+Overall grade1,115 students9 students per teacher
#3 Largest Private Schools in Dallas County, TX
The Hockaday School
Independent school · Grades Pre-K–12
1,090 students
Dallas, TX
A+Overall gradeAll girls1,090 students9 students per teacher
#4 Largest Private Schools in Dallas County, TX
Bishop Lynch High School
Diocesan school · Grades 9–12
1,002 students
Dallas, TX
A+Overall grade1,002 students11 students per teacher
#5 Largest Private Schools in Dallas County, TX
St. Thomas Aquinas Catholic School
Parish school · Grades Pre-K–8
812 students
Dallas, TX
BOverall grade812 students14 students per teacher
#6 Largest Private Schools in Dallas County, TX
Islamic School of Irving
Islamic school · Grades Pre-K–12
749 students
Irving, TX
A+Overall grade749 students9 students per teacher
#7 Largest Private Schools in Dallas County, TX
St. Rita Catholic School
Parish school · Grades Pre-K–8
731 students
Dallas, TX
B+Overall grade731 students11 students per teacher
#8 Largest Private Schools in Dallas County, TX
The Covenant School
Christian school (nondenominational) · Grades K–12
717 students
Dallas, TX
AOverall grade717 students8 students per teacher
#9 Largest Private Schools in Dallas County, TX
The Covenant School of Dallas
Christian school (nondenominational) · Grades K–12
714 students
Dallas, TX
BOverall grade714 students8 students per teacher
#10 Largest Private Schools in Dallas County, TX
Coram Deo Academy
Christian school (nondenominational) · Grades Pre-K–12
689 students
Dallas, TX
BOverall grade689 students27 students per teacher
#11 Largest Private Schools in Dallas County, TX
St. Monica Catholic School
Diocesan school · Grades Pre-K–8
620 students
Dallas, TX
AOverall grade620 students12 students per teacher
#12 Largest Private Schools in Dallas County, TX
Good Shepherd Episcopal School
Episcopal school · Grades Pre-K–8
547 students
Dallas, TX
BOverall grade547 students10 students per teacher
#13 Largest Private Schools in Dallas County, TX
Dallas Christian School
Christian school (nondenominational) · Grades K–12
512 students
Mesquite, TX
AOverall grade512 students10 students per teacher
#14 Largest Private Schools in Dallas County, TX
Cristo Rey Dallas College Prep
Independent Catholic school · Grades 9–12
459 students
Dallas, TX
B-Overall grade459 students16 students per teacher
#15 Largest Private Schools in Dallas County, TX
Alcuin School
Montessori school · Grades Pre-K–12
422 students
Dallas, TX
A+Overall grade422 students8 students per teacher
#16 Largest Private Schools in Dallas County, TX
Cristo Rey Dallas College Prep
Independent Catholic school · Grades 9–12
421 students
Dallas, TX
B-Overall grade421 students14 students per teacher
#17 Largest Private Schools in Dallas County, TX
Mary Immaculate Catholic School
Diocesan school · Grades Pre-K–8
419 students
Farmers Branch, TX
A+Overall grade419 students9 students per teacher
#18 Largest Private Schools in Dallas County, TX
Lakehill Preparatory School
Independent school · Grades K–12
419 students
Dallas, TX
A+Overall grade419 students7 students per teacher
#19 Largest Private Schools in Dallas County, TX
Coram Deo Academy
Christian school (nondenominational) · Grades Pre-K–12
419 students
Dallas, TX
B-Overall grade419 students16 students per teacher
#20 Largest Private Schools in Dallas County, TX
Parish Episcopal School
Episcopal school · Grades Pre-K–8
415 students
Dallas, TX
B+Overall grade415 students12 students per teacher
#21 Largest Private Schools in Dallas County, TX
Providence Christian School
Christian school (nondenominational) · Grades Pre-K–8
402 students
Dallas, TX
B-Overall grade402 students10 students per teacher
#22 Largest Private Schools in Dallas County, TX
Radiant STEM Academy
Islamic school · Grades Pre-K–12
397 students
Irving, TX
B+Overall grade397 students
#23 Largest Private Schools in Dallas County, TX
Radiant STEM Academy
Islamic school · Grades Pre-K–12
396 students
Irving, TX
B+Overall grade396 students9 students per teacher
#24 Largest Private Schools in Dallas County, TX
Bishop Dunne Catholic School
Diocesan school · Grades 6–12
395 students
Dallas, TX
A+Overall grade395 students9 students per teacher
From official public records, updated October 2026.