Watson Institute Photo - Staff and students had a blast at the annual Watson Fun Day!

Top 3 Best 15143 Pennsylvania Private Schools (2025)

For the 2025 school year, there are 6 private schools serving 1,659 students in 15143, PA (there are 5 public schools, serving 3,120 public students). 35% of all K-12 students in 15143, PA are educated in private schools (compared to the PA state average of 14%).
The top ranked private schools in 15143, PA include Sewickley Academy, Eden Christian Academy, and Watson Institute.
50% of private schools in 15143, PA are religiously affiliated (most commonly Catholic and Christian).

Top Ranked 15143 Pennsylvania Private Schools (2025)

School
Location
Grades
Students
Eden Christian Academy
(Christian)
318 Nicholson Rd
Sewickley, PA 15143
(412) 741-2825
Grades: PK-12
| 619 students
Sewickley Academy
Sewickley Academy Photo - For Who You Are. For Who You Will Become.
(10)
315 Academy Avenue
Sewickley, PA 15143
(412) 741-2230
Grades: PK-12
| 532 students
Watson Institute
Watson Institute Photo - Staff and students had a blast at the annual Watson Fun Day!
Special Education School
301 Camp Meeting Rd
Sewickley, PA 15143
(141) 274-9285
Grades: PK-12
| 179 students
Montessori Children's Community
Montessori Children's Community Photo - We learn in a strong community that is founded in respect, curiosity, and dedication to life long learning.
Montessori School
(4)
474 Chadwick Street
Sewickley, PA 15143
(412) 741-8982
Grades: PK-8
| 66 students
Noah's Ark Preschool/kindergarten
Daycare / Preschool
405 Frederick Ave
Sewickley, PA 15143
(412) 741-5231
Grades: PK-K
| 106 students
St. James Elementary School
(Catholic)
201 Broad St
Sewickley, PA 15143
(412) 837-1056
Grades: K-8
| 157 students

Frequently Asked Questions

What are the top ranked private schools in 15143, PA?
The top ranked private schools in 15143, PA include Sewickley Academy, Eden Christian Academy, and Watson Institute.
How many private schools are located in 15143?
6 private schools are located in 15143.
How diverse are private schools in 15143?
15143 private schools are approximately 18% minority students, which is lower than the Pennsylvania private school average of 27%.
What percentage of students in 15143 go to private school?
35% of all K-12 students in 15143 are educated in private schools (compared to the PA state average of 14%).
What percentage of private schools are religiously affiliated in 15143?
50% of private schools in 15143 are religiously affiliated (most commonly Catholic and Christian).

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