#1 Best Private Schools in the Diocese of Knoxville
Our Lady of Perpetual Help School
Diocesan school · Grades Pre-K–8
The smallest classes of any Catholic school in Chattanooga
Chattanooga, TN
A+Overall grade234 students9 students per teacher
2026 lists
Best Private Schools in the Diocese of Knoxville
Private schools in the Diocese of Knoxville with the highest overall grades. Top 8 of 8 schools.
#2 Best Private Schools in the Diocese of Knoxville
Notre Dame High School
Diocesan school · Grades 9–12
The largest Catholic school in Chattanooga
Chattanooga, TN
A+Overall grade392 students12 students per teacher
#3 Best Private Schools in the Diocese of Knoxville
St. Marys School
Parish school · Grades Pre-K–8
Serving families in Oak Ridge since at least 2011
Oak Ridge, TN
A+Overall grade167 students11 students per teacher
#4 Best Private Schools in the Diocese of Knoxville
St. Joseph School
Parish school · Grades Pre-K–8
The smallest classes of any Catholic school in Knoxville
Knoxville, TN
AOverall grade217 students10 students per teacher
#5 Best Private Schools in the Diocese of Knoxville
St. Dominic Catholic School
Diocesan school · Grades Pre-K–5
The only Catholic school in Kingsport
Kingsport, TN
B+Overall grade85 students12 students per teacher
#6 Best Private Schools in the Diocese of Knoxville
St. Mary's School
Diocesan school · Grades K–8
The only Catholic school in Johnson City
Johnson City, TN
B+Overall grade166 students11 students per teacher
#7 Best Private Schools in the Diocese of Knoxville
Sacred Heart Cathedral School
Diocesan school · Grades Pre-K–8
The largest Catholic school in Knoxville
Knoxville, TN
BOverall grade503 students12 students per teacher
#8 Best Private Schools in the Diocese of Knoxville
St. Jude School
Parish school · Grades Pre-K–8
Serving families in Chattanooga since at least 2011
Chattanooga, TN
BOverall grade285 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.