#25 Most Diverse Private Schools in Multnomah County, OR
St. Marys Academy
Independent Catholic school · Grades 9–12
Largest group: 73% of students
Portland, OR
A-Overall gradeAll girls606 students12 students per teacher
2026 lists
Most Diverse Private Schools in Multnomah County, OR
Private schools in Multnomah County, OR with the most varied mix of students. Top 43 of 43 schools.
From official public records, updated October 2026.