#1 Largest Private Schools in Lowell, MA
Lowell Catholic
Diocesan school · Grades Pre-K–12
705 students
Lowell, MA
B-Overall grade705 students11 students per teacher
2026 lists
Largest Private Schools in Lowell, MA
The private schools in Lowell, MA with the most students. Top 6 of 6 schools.
#2 Largest Private Schools in Lowell, MA
Immaculate Conception School
Parish school · Grades Pre-K–8
303 students
Lowell, MA
BOverall grade303 students15 students per teacher
#3 Largest Private Schools in Lowell, MA
St. Michael School
Diocesan school · Grades Pre-K–8
148 students
Lowell, MA
A+Overall grade148 students4 students per teacher
#4 Largest Private Schools in Lowell, MA
Community Christian Academy
Christian school (nondenominational) · Grades Pre-K–8
126 students
Lowell, MA
B+Overall grade126 students13 students per teacher
#5 Largest Private Schools in Lowell, MA
St. Patrick School and Educational Center
Independent Catholic school · Grades K–8
84 students
Lowell, MA
A+Overall grade84 students8 students per teacher
#6 Largest Private Schools in Lowell, MA
Hellenic American Academy
Greek Orthodox school · Grades Pre-K–6
78 students
Lowell, MA
B+Overall grade78 students11 students per teacher
From official public records, updated October 2026.