#1 Largest Private Schools in Cameron County, TX
St. Joseph Academy
Parish school · Grades 7–12
460 students
Brownsville, TX
A+Overall grade460 students7 students per teacher
2026 lists
Largest Private Schools in Cameron County, TX
The private schools in Cameron County, TX with the most students. Top 15 of 15 schools.
#2 Largest Private Schools in Cameron County, TX
St. Mary's Catholic School
Diocesan school · Grades Pre-K–6
396 students
Brownsville, TX
BOverall grade396 students17 students per teacher
#3 Largest Private Schools in Cameron County, TX
Marine Military Academy
Independent school · Grades 7–12
240 students
Harlingen, TX
A+Overall gradeAll boys240 students9 students per teacher
#4 Largest Private Schools in Cameron County, TX
Kenmont Montessori School
Montessori school · Grades Pre-K–8
236 students
Brownsville, TX
BOverall grade236 students8 students per teacher
#5 Largest Private Schools in Cameron County, TX
Episcopal Day School
Episcopal school · Grades Pre-K–6
205 students
Brownsville, TX
BOverall grade205 students12 students per teacher
#6 Largest Private Schools in Cameron County, TX
Calvary Christian School
Baptist school · Grades Pre-K–8
163 students
Harlingen, TX
BOverall grade163 students10 students per teacher
#7 Largest Private Schools in Cameron County, TX
St. Albans Episcopal Day School
Episcopal school · Grades Pre-K–6
146 students
Harlingen, TX
A-Overall grade146 students10 students per teacher
#8 Largest Private Schools in Cameron County, TX
St. Anthony Catholic School
Parish school · Grades Pre-K–6
56 students
Harlingen, TX
AOverall grade56 students6 students per teacher
#9 Largest Private Schools in Cameron County, TX
Guadalupe Regional Middle School
Independent Catholic school · Grades 6–8
56 students
Brownsville, TX
AOverall grade56 students8 students per teacher
#10 Largest Private Schools in Cameron County, TX
Brownsville Montessori Academy
Montessori school · Grades Pre-K–4
33 students
Brownsville, TX
AOverall grade33 students4 students per teacher
#11 Largest Private Schools in Cameron County, TX
Laguna Madre Christian Academy
Christian school (nondenominational) · Grades Pre-K–10
31 students
Laguna Vista, TX
AOverall grade31 students6 students per teacher
#12 Largest Private Schools in Cameron County, TX
Montessori Academy
Montessori school · Grades Pre-K–5
25 students
Harlingen, TX
A-Overall grade25 students5 students per teacher
#13 Largest Private Schools in Cameron County, TX
Marias Montessori School
Montessori school · Grades K–1
23 students
Brownsville, TX
B+Overall grade23 students6 students per teacher
#14 Largest Private Schools in Cameron County, TX
Mundo Magico Learning Center
Independent school · Grades Pre-K–6
22 students
Brownsville, TX
A-Overall grade22 students4 students per teacher
#15 Largest Private Schools in Cameron County, TX
In the Presence of God Coram Deo Classical Academy
Christian school (nondenominational) · Grades 2–12
20 students
Brownsville, TX
AOverall grade20 students5 students per teacher
From official public records, updated October 2026.