#1 Largest Private Schools in Renton, WA
Renton Christian School
Assembly of God school · Grades Pre-K–8
690 students
Renton, WA
B+Overall grade690 students16 students per teacher
2026 lists
Largest Private Schools in Renton, WA
The private schools in Renton, WA with the most students. Top 8 of 8 schools.
#2 Largest Private Schools in Renton, WA
St. Anthony Elementary School
Diocesan school · Grades Pre-K–8
350 students
Renton, WA
B+Overall grade350 students18 students per teacher
#3 Largest Private Schools in Renton, WA
Renton Prep Christian School
Lutheran (Missouri Synod) school · Grades Pre-K–10
220 students
Renton, WA
B+Overall grade220 students13 students per teacher
#4 Largest Private Schools in Renton, WA
Renton Prep Christian School
Lutheran (Missouri Synod) school · Grades Pre-K–10
165 students
Renton, WA
A+Overall grade165 students8 students per teacher
#5 Largest Private Schools in Renton, WA
Cedar River Montessori School
Montessori school · Grades Pre-K–8
79 students
Renton, WA
A+Overall grade79 students6 students per teacher
#6 Largest Private Schools in Renton, WA
Maple Valley Elementary School
Christian school (nondenominational) · Grades Pre-K–6
53 students
Renton, WA
B+Overall grade53 students
#7 Largest Private Schools in Renton, WA
New Horizon School
Special education school · Grades 5–12
49 students
Renton, WA
B+Overall grade49 students6 students per teacher
#8 Largest Private Schools in Renton, WA
Children's Institute for Learning Differences
Special education school · Grades 1–12
41 students
Renton, WA
B+Overall grade41 students4 students per teacher
From official public records, updated October 2026.