#1 Best Private Schools in Waterloo, IA
Blessed Maria Assunta Pallotta
Diocesan school · Grades 6–8
The smallest classes of any Catholic school in Waterloo
Waterloo, IA
A+Overall grade175 students11 students per teacher
2026 lists
Best Private Schools in Waterloo, IA
Private schools in Waterloo, IA with the highest overall grades. Top 5 of 5 schools.
#2 Best Private Schools in Waterloo, IA
St. Edward School
Diocesan school · Grades K–5
One of the most diverse private schools in Iowa
Waterloo, IA
AOverall grade321 students12 students per teacher
#3 Best Private Schools in Waterloo, IA
Cedar Valley Catholic School
Parish school · Grades Pre-K–12
The largest Catholic school in Waterloo
Waterloo, IA
BOverall grade733 students13 students per teacher
#4 Best Private Schools in Waterloo, IA
Cedar Valley Catholic School System
Parish school · Grades Pre-K–12
The largest Catholic school in Waterloo
Waterloo, IA
B-Overall grade733 students13 students per teacher
#5 Best Private Schools in Waterloo, IA
Waterloo Christian School
Christian school (nondenominational) · Grades Pre-K–12
Growing: enrollment up 120% since 2011–12
Waterloo, IA
B-Overall grade312 students15 students per teacher
Grades compare each school's official facts, such as class size, how long it has served families and where graduates go, with similar schools. They're a starting point: visit, ask questions and trust what you see.