#1 Largest Private Schools in Waterloo, IA
Cedar Valley Catholic School
Parish school · Grades Pre-K–12
733 students
Waterloo, IA
BOverall grade733 students13 students per teacher
2026 lists
Largest Private Schools in Waterloo, IA
The private schools in Waterloo, IA with the most students. Top 6 of 6 schools.
#2 Largest Private Schools in Waterloo, IA
Cedar Valley Catholic School System
Parish school · Grades Pre-K–12
733 students
Waterloo, IA
B-Overall grade733 students13 students per teacher
#3 Largest Private Schools in Waterloo, IA
St. Edward School
Diocesan school · Grades K–5
321 students
Waterloo, IA
AOverall grade321 students12 students per teacher
#4 Largest Private Schools in Waterloo, IA
Waterloo Christian School
Christian school (nondenominational) · Grades Pre-K–12
312 students
Waterloo, IA
B-Overall grade312 students15 students per teacher
#5 Largest Private Schools in Waterloo, IA
Blessed Maria Assunta Pallotta
Diocesan school · Grades 6–8
175 students
Waterloo, IA
A+Overall grade175 students11 students per teacher
#6 Largest Private Schools in Waterloo, IA
Royal Legacy Christian Academy
Christian school (nondenominational) · Grades Pre-K–6
36 students
Waterloo, IA
A-Overall grade36 students8 students per teacher
From official public records, updated October 2026.