#1 Best Private Schools in Rock County, WI
Our Lady of the Assumption School
Parish school · Grades Pre-K–8
The only Catholic school in Beloit
Beloit, WI
A+Overall grade112 students9 students per teacher
2026 lists
Best Private Schools in Rock County, WI
Private schools in Rock County, WI with the highest overall grades. Top 6 of 6 schools.
#2 Best Private Schools in Rock County, WI
Oakhill Christian School
Christian school (nondenominational) · Grades K–12
The smallest classes of any Christian school in Janesville
Janesville, WI
B+Overall grade84 students7 students per teacher
#3 Best Private Schools in Rock County, WI
Rock Prairie Montessori
Montessori school · Grades Pre-K–8
The only Montessori school in Janesville
Janesville, WI
B+Overall grade87 students8 students per teacher
#4 Best Private Schools in Rock County, WI
St. Pauls Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
The largest Christian school in Janesville
Janesville, WI
BOverall grade171 students13 students per teacher
#5 Best Private Schools in Rock County, WI
St. William Catholic School
Parish school · Grades Pre-K–8
Growing: enrollment up 27% since 2011–12
Janesville, WI
BOverall grade167 students13 students per teacher
#6 Best Private Schools in Rock County, WI
Rock County Christian School
Christian school (nondenominational) · Grades K–12
The only Christian school in Beloit
Beloit, WI
B-Overall grade240 students13 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.