#1 College-Bound Private High Schools in Wilmington, DE
The Tatnall School
Independent school · Grades Pre-K–12
100% of graduates go to four-year colleges
Wilmington, DE
A+Overall grade457 students6 students per teacher
2026 lists
College-Bound Private High Schools in Wilmington, DE
Private high schools in Wilmington, DE where the most graduates go on to four-year colleges. Top 5 of 5 schools.
#2 College-Bound Private High Schools in Wilmington, DE
Padua Academy
Diocesan school · Grades 9–12
100% of graduates go to four-year colleges
Wilmington, DE
A+Overall gradeAll girls424 students11 students per teacher
#3 College-Bound Private High Schools in Wilmington, DE
St. Mark's High School
Diocesan school · Grades 9–12
99% of graduates go to four-year colleges
Wilmington, DE
BOverall grade829 students17 students per teacher
#4 College-Bound Private High Schools in Wilmington, DE
St. Elizabeth School
Diocesan school · Grades Pre-K–12
75% of graduates go to four-year colleges
Wilmington, DE
BOverall grade364 students12 students per teacher
#5 College-Bound Private High Schools in Wilmington, DE
Urban Promise Academy
Christian school (nondenominational) · Grades 8–12
57% of graduates go to four-year colleges
Wilmington, DE
A-Overall grade25 students4 students per teacher
From official public records, updated October 2026.