#1 Best Catholic Schools in Allegheny County, PA
Oakland Catholic High School
Diocesan school · Grades 9–12
The smallest classes of any Catholic school in Pittsburgh
Pittsburgh, PA
A+Overall gradeAll girls400 students10 students per teacher
2026 lists
Best Catholic Schools in Allegheny County, PA
The highest-graded schools of this kind in Allegheny County, PA. Top 32 of 32 schools.
#2 Best Catholic Schools in Allegheny County, PA
Serra Catholic High School
Diocesan school · Grades 9–12
Smaller classes than 77% of Catholic schools in Pennsylvania
McKeesport, PA
A+Overall grade209 students10 students per teacher
#3 Best Catholic Schools in Allegheny County, PA
Mary of Nazareth Catholic S
Diocesan school · Grades Pre-K–8
Smaller classes than 74% of Catholic schools in Pennsylvania
White Oak, PA
A+Overall grade119 students10 students per teacher
#4 Best Catholic Schools in Allegheny County, PA
St. Joseph High School
Diocesan school · Grades 9–12
Smaller classes than 82% of Catholic schools in Pennsylvania
Natrona Heights, PA
A+Overall grade126 students9 students per teacher
#5 Best Catholic Schools in Allegheny County, PA
Providence Heights Alpha School
Independent Catholic school · Grades Pre-K–8
The only Catholic school in Allison Park
Allison Park, PA
A+Overall grade81 students6 students per teacher
#6 Best Catholic Schools in Allegheny County, PA
Bishop Canevin High School
Diocesan school · Grades 9–12
The smallest classes of any Catholic school in Pittsburgh
Pittsburgh, PA
A+Overall grade204 students10 students per teacher
#7 Best Catholic Schools in Allegheny County, PA
Central Catholic High School
Diocesan school · Grades 9–12
The largest Catholic school in Pittsburgh
Pittsburgh, PA
A+Overall gradeAll boys712 students12 students per teacher
#8 Best Catholic Schools in Allegheny County, PA
St. James School
Diocesan school · Grades Pre-K–8
The only Catholic school in Sewickley
Sewickley, PA
A+Overall grade123 students10 students per teacher
#9 Best Catholic Schools in Allegheny County, PA
St. Anthony School Programs
Diocesan school · Grades 1–12
Smaller classes than 71% of Catholic schools in Pennsylvania
Wexford, PA
AOverall grade73 students7 students per teacher
#10 Best Catholic Schools in Allegheny County, PA
Divine Mercy Academy
Diocesan school · Grades Pre-K–8
The only Catholic school in Monroeville
Monroeville, PA
AOverall grade166 students13 students per teacher
#11 Best Catholic Schools in Allegheny County, PA
Seton Lasalle Catholic High School
Diocesan school · Grades 9–12
86% of graduates go to four-year colleges
Pittsburgh, PA
A-Overall grade433 students12 students per teacher
#12 Best Catholic Schools in Allegheny County, PA
Sister Thea Bowman Catholic Academy
Diocesan school · Grades K–8
Serving families in Wilkinsburg since at least 2011
Wilkinsburg, PA
A-Overall grade141 students13 students per teacher
#13 Best Catholic Schools in Allegheny County, PA
Our Lady of the Sacred Heart High School
Independent Catholic school · Grades 9–12
94% of graduates go to four-year colleges
Coraopolis, PA
A-Overall grade335 students11 students per teacher
#14 Best Catholic Schools in Allegheny County, PA
Northside Catholic Assumption Academy
Diocesan school · Grades Pre-K–8
Growing: enrollment up 17% since 2015–16
Pittsburgh, PA
B+Overall grade151 students13 students per teacher
#15 Best Catholic Schools in Allegheny County, PA
Mother of Mercy Academy
Diocesan school · Grades Pre-K–8
Serving families in Pittsburgh since at least 2011
Pittsburgh, PA
B+Overall grade297 students13 students per teacher
#16 Best Catholic Schools in Allegheny County, PA
St. Benedict the Moor School
Diocesan school · Grades K–8
One of 17 Catholic schools in Pittsburgh
Pittsburgh, PA
B+Overall grade130 students12 students per teacher
#17 Best Catholic Schools in Allegheny County, PA
St. Bede School
Diocesan school · Grades Pre-K–8
Serving families in Pittsburgh since at least 2011
Pittsburgh, PA
B+Overall grade242 students13 students per teacher
#18 Best Catholic Schools in Allegheny County, PA
Blessed Trinity Academy
Diocesan school · Grades Pre-K–8
A Catholic school in Glenshaw
Glenshaw, PA
BOverall grade154 students12 students per teacher
#19 Best Catholic Schools in Allegheny County, PA
Holy Family Catholic School
Parish school · Grades Pre-K–8
One of 17 Catholic schools in Pittsburgh
Pittsburgh, PA
BOverall grade178 students13 students per teacher
#20 Best Catholic Schools in Allegheny County, PA
Holy Family Catholic School
Diocesan school · Grades Pre-K–8
One of 17 Catholic schools in Pittsburgh
Pittsburgh, PA
BOverall grade178 students13 students per teacher
#21 Best Catholic Schools in Allegheny County, PA
Holy Cross Academy
Diocesan school · Grades Pre-K–8
One of 17 Catholic schools in Pittsburgh
Pittsburgh, PA
BOverall grade193 students13 students per teacher
#22 Best Catholic Schools in Allegheny County, PA
Mother of Mercy Academy
Diocesan school · Grades Pre-K–8
Serving families in Pittsburgh since at least 2011
Pittsburgh, PA
BOverall grade298 students14 students per teacher
#23 Best Catholic Schools in Allegheny County, PA
St. Therese School-Munhall
Diocesan school · Grades Pre-K–8
Serving families in Homestead since at least 2011
Homestead, PA
BOverall grade223 students15 students per teacher
#24 Best Catholic Schools in Allegheny County, PA
Sacred Heart Elementary School
Parish school · Grades Pre-K–8
Serving families in Pittsburgh since at least 2011
Pittsburgh, PA
BOverall grade409 students17 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.