#25 Largest Private Schools in District of Columbia County, DC
St. Thomas More Catholic
Diocesan school · Grades Pre-K–8
153 students
Washington, DC
B+Overall grade153 students7 students per teacher
2026 lists
Largest Private Schools in District of Columbia County, DC
The private schools in District of Columbia County, DC with the most students. Top 44 of 44 schools.
From official public records, updated October 2026.