2026 lists
Private schools in Allegheny County, PA with the highest overall grades. Top 50 of 64 schools.
#1 Best Private Schools in Allegheny County, PA
Christian school (nondenominational) · Grades Pre-K–8
Smaller classes than 92% of Christian schools in Pennsylvania
Pittsburgh, PA
#2 Best Private Schools in Allegheny County, PA
Diocesan school · Grades 9–12
The smallest classes of any Catholic school in Pittsburgh
Pittsburgh, PA
#3 Best Private Schools in Allegheny County, PA
Independent school · Grades Pre-K–12
100% of graduates go to four-year colleges
Pittsburgh, PA
#4 Best Private Schools in Allegheny County, PA
Diocesan school · Grades 9–12
Smaller classes than 77% of Catholic schools in Pennsylvania
McKeesport, PA
#5 Best Private Schools in Allegheny County, PA
Diocesan school · Grades Pre-K–8
Smaller classes than 74% of Catholic schools in Pennsylvania
White Oak, PA
#6 Best Private Schools in Allegheny County, PA
Independent school · Grades Pre-K–5
The smallest classes of any independent school in Pittsburgh
Pittsburgh, PA
#7 Best Private Schools in Allegheny County, PA
Independent school · Grades 1–8
Smaller classes than 85% of independent schools in Pennsylvania
Pittsburgh, PA
#8 Best Private Schools in Allegheny County, PA
Diocesan school · Grades 9–12
Smaller classes than 82% of Catholic schools in Pennsylvania
Natrona Heights, PA
#9 Best Private Schools in Allegheny County, PA
Independent Catholic school · Grades Pre-K–8
The only Catholic school in Allison Park
Allison Park, PA
#10 Best Private Schools in Allegheny County, PA
Diocesan school · Grades 9–12
The smallest classes of any Catholic school in Pittsburgh
Pittsburgh, PA
#11 Best Private Schools in Allegheny County, PA
Independent school · Grades Pre-K–5
Smaller classes than 83% of independent schools in Pennsylvania
Pittsburgh, PA
#12 Best Private Schools in Allegheny County, PA
Montessori school · Grades Pre-K–6
One of the 3 largest Montessori schools in Pennsylvania
Pittsburgh, PA
#13 Best Private Schools in Allegheny County, PA
Independent school · Grades Pre-K–12
The only independent school in Sewickley
Sewickley, PA
#14 Best Private Schools in Allegheny County, PA
Independent school · Grades Pre-K–8
Small classes: about 7 students per teacher
Pittsburgh, PA
#15 Best Private Schools in Allegheny County, PA
Diocesan school · Grades 9–12
The largest Catholic school in Pittsburgh
Pittsburgh, PA
#16 Best Private Schools in Allegheny County, PA
Diocesan school · Grades Pre-K–8
The only Catholic school in Sewickley
Sewickley, PA
#17 Best Private Schools in Allegheny County, PA
Independent school · Grades K–8
Growing: enrollment up 23% since 2011–12
Pittsburgh, PA
#18 Best Private Schools in Allegheny County, PA
Christian school (nondenominational) · Grades Pre-K–8
Smaller classes than 72% of Christian schools in Pennsylvania
Coraopolis, PA
#19 Best Private Schools in Allegheny County, PA
Independent school · Grades Pre-K–12
The only independent school in Allison Park
Allison Park, PA
#20 Best Private Schools in Allegheny County, PA
Diocesan school · Grades 1–12
Smaller classes than 71% of Catholic schools in Pennsylvania
Wexford, PA
#21 Best Private Schools in Allegheny County, PA
Diocesan school · Grades Pre-K–8
The only Catholic school in Monroeville
Monroeville, PA
#22 Best Private Schools in Allegheny County, PA
Diocesan school · Grades 9–12
86% of graduates go to four-year colleges
Pittsburgh, PA
#23 Best Private Schools in Allegheny County, PA
Christian school (nondenominational) · Grades Pre-K–12
Smaller classes than 81% of Christian schools in Pennsylvania
Bethel Park, PA
#24 Best Private Schools in Allegheny County, PA
Diocesan school · Grades K–8
Serving families in Wilkinsburg since at least 2011
Wilkinsburg, PA
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.