#1 Largest Private Schools in St. Lawrence County, NY
St. James Elementary School
Diocesan school · Grades Pre-K–6
84 students
Gouverneur, NY
B+Overall grade84 students10 students per teacher
2026 lists
Largest Private Schools in St. Lawrence County, NY
The private schools in St. Lawrence County, NY with the most students. Top 13 of 13 schools.
#2 Largest Private Schools in St. Lawrence County, NY
The Holy Name of Jesus Academy
Independent Catholic school · Grades Pre-K–12
80 students
Massena, NY
B+Overall gradeAll girls80 students5 students per teacher
#3 Largest Private Schools in St. Lawrence County, NY
Trinity Catholic School
Diocesan school · Grades Pre-K–6
78 students
Massena, NY
A+Overall grade78 students7 students per teacher
#4 Largest Private Schools in St. Lawrence County, NY
Little River Community School
Independent school · Grades K–12
35 students
Canton, NY
A-Overall grade35 students7 students per teacher
#5 Largest Private Schools in St. Lawrence County, NY
Rock Island School
Amish school · Grades 1–8
30 students
Rensselaer Falls, NY
30 students30 students per teacher
#6 Largest Private Schools in St. Lawrence County, NY
Maple Ridge School
Amish school · Grades 1–8
27 students
Heuvelton, NY
27 students14 students per teacher
#7 Largest Private Schools in St. Lawrence County, NY
St. Therese's Academy
Independent Catholic school · Grades K–8
27 students
Nicholville, NY
AOverall gradeAll boys27 students5 students per teacher
#8 Largest Private Schools in St. Lawrence County, NY
St. Catherine of Siena Academy
Independent Catholic school · Grades K–6
23 students
Canton, NY
AOverall grade23 students4 students per teacher
#9 Largest Private Schools in St. Lawrence County, NY
Pleasant View School
Amish school · Grades 1–8
23 students
Heuvelton, NY
23 students23 students per teacher
#10 Largest Private Schools in St. Lawrence County, NY
Twin Maples School
Amish school · Grades 1–8
22 students
Heuvelton, NY
22 students14 students per teacher
#11 Largest Private Schools in St. Lawrence County, NY
Townline School
Amish school · Grades 1–8
22 students
Heuvelton, NY
22 students22 students per teacher
#12 Largest Private Schools in St. Lawrence County, NY
Locust Grove
Amish school · Grades 1–8
21 students
Rensselaer Falls, NY
21 students21 students per teacher
#13 Largest Private Schools in St. Lawrence County, NY
Mud Lake School
Amish school · Grades 1–8
20 students
Rensselaer Falls, NY
20 students20 students per teacher
From official public records, updated October 2026.