#1 Largest Private Schools in Harlingen, TX
Marine Military Academy
Independent school · Grades 7–12
240 students
Harlingen, TX
A+Overall gradeAll boys240 students9 students per teacher
2026 lists
Largest Private Schools in Harlingen, TX
The private schools in Harlingen, TX with the most students. Top 5 of 5 schools.
#2 Largest Private Schools in Harlingen, TX
Calvary Christian School
Baptist school · Grades Pre-K–8
163 students
Harlingen, TX
BOverall grade163 students10 students per teacher
#3 Largest Private Schools in Harlingen, TX
St. Albans Episcopal Day School
Episcopal school · Grades Pre-K–6
146 students
Harlingen, TX
A-Overall grade146 students10 students per teacher
#4 Largest Private Schools in Harlingen, TX
St. Anthony Catholic School
Parish school · Grades Pre-K–6
56 students
Harlingen, TX
AOverall grade56 students6 students per teacher
#5 Largest Private Schools in Harlingen, TX
Montessori Academy
Montessori school · Grades Pre-K–5
25 students
Harlingen, TX
A-Overall grade25 students5 students per teacher
From official public records, updated October 2026.