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Harrisburg Academy Photo - Middle School students headed to the Susquehanna River for a Science Field Trip.
Harrisburg Academy

Best Pennsylvania Private High Schools Belonging to International Baccalaureate (IB) World School (2026)

For the 2026 school year, there are 2 private high schools belonging to International Baccalaureate (IB) World School serving 853 students in Pennsylvania. You can also find more schools membership associations in Pennsylvania.
The top-ranked private high schools belonging to International Baccalaureate (IB) World School in Pennsylvania include Harrisburg Academy and Mercyhurst Preparatory School.
The average acceptance rate is 85%, which is higher than the Pennsylvania private high school average acceptance rate of 79%.
50% of private high schools belonging to International Baccalaureate (IB) World School in Pennsylvania are religiously affiliated (most commonly Catholic).

Top-Ranked Private High Schools Belonging to International Baccalaureate (IB) World School in Pennsylvania (2026)

School
Location
Quick Facts
Harrisburg Academy
Harrisburg Academy Photo - Upper School Students take a moment to discuss the period's lecture.
(6)
10 Erford Road
Lemoyne, PA 17043
(717) 763-7811
Gr: NS-12 | 356 students Avg. class size: 15 students Sports: 7 | Extracurrculars: 12 Tuition & acceptance rate listed
Mercyhurst Preparatory School
Mercyhurst Preparatory School Photo - MPS students can participate in studio arts, dance, music, photography, and theater. Mercyhurst Prep offers 49 courses in the performing and visual arts, and the arts faculty is comprised of active award-winning artists who are regularly engaged in exhibiting, performing, and teaching in the community.
(Catholic)
538 E Grandview Blvd
Erie, PA 16504
(814) 824-2210
Gr: 8-12 | 497 students Avg. class size: 23 students Sports: 15 | Extracurrculars: 34 Tuition & acceptance rate listed

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