#1 Largest Private Schools in Lake Oswego, OR
Our Lady of the Lake Cartholic School
Diocesan school · Grades Pre-K–8
256 students
Lake Oswego, OR
B-Overall grade256 students28 students per teacher
2026 lists
Largest Private Schools in Lake Oswego, OR
The private schools in Lake Oswego, OR with the most students. Top 5 of 5 schools.
#2 Largest Private Schools in Lake Oswego, OR
Park Academy
Special education school · Grades 3–12
99 students
Lake Oswego, OR
A+Overall grade99 students4 students per teacher
#3 Largest Private Schools in Lake Oswego, OR
International Leadership Academy
Independent school · Grades Pre-K–5
69 students
Lake Oswego, OR
B+Overall grade69 students11 students per teacher
#4 Largest Private Schools in Lake Oswego, OR
Maayan Torah Day School
Jewish day school · Grades K–10
63 students
Lake Oswego, OR
B+Overall grade63 students5 students per teacher
#5 Largest Private Schools in Lake Oswego, OR
Maayan Torah Day School
Jewish day school · Grades Pre-K–10
62 students
Lake Oswego, OR
B+Overall grade62 students6 students per teacher
From official public records, updated October 2026.