#1 Most Diverse Private Schools in Wilmington, DE
St. Anthony of Padua Grade School
Diocesan school · Grades Pre-K–8
Largest group: 52% of students
Wilmington, DE
A+Overall grade161 students9 students per teacher
2026 lists
Most Diverse Private Schools in Wilmington, DE
Private schools in Wilmington, DE with the most varied mix of students. Top 17 of 17 schools.
#2 Most Diverse Private Schools in Wilmington, DE
St. Elizabeth School
Diocesan school · Grades Pre-K–12
Largest group: 53% of students
Wilmington, DE
BOverall grade364 students12 students per teacher
#3 Most Diverse Private Schools in Wilmington, DE
Concord Christian Academy
Baptist school · Grades Pre-K–12
Largest group: 57% of students
Wilmington, DE
B+Overall grade136 students9 students per teacher
#4 Most Diverse Private Schools in Wilmington, DE
The Tatnall School
Independent school · Grades Pre-K–12
Largest group: 62% of students
Wilmington, DE
A+Overall grade457 students6 students per teacher
#5 Most Diverse Private Schools in Wilmington, DE
Nativity Preparatory School of Wilmington
Diocesan school · Grades 5–8
Largest group: 72% of students
Wilmington, DE
A+Overall gradeAll boys53 students8 students per teacher
#6 Most Diverse Private Schools in Wilmington, DE
St. Edmond's Academy
Independent Catholic school · Grades Pre-K–8
Largest group: 74% of students
Wilmington, DE
A+Overall gradeAll boys158 students9 students per teacher
#7 Most Diverse Private Schools in Wilmington, DE
Centerville Layton School
Independent school · Grades K–12
Largest group: 77% of students
Wilmington, DE
AOverall grade88 students3 students per teacher
#8 Most Diverse Private Schools in Wilmington, DE
Ursuline Academy, Lower
Independent Catholic school · Grades 3–8
Largest group: 78% of students
Wilmington, DE
A+Overall grade456 students8 students per teacher
#9 Most Diverse Private Schools in Wilmington, DE
The Pilot School
Special education school · Grades K–8
Largest group: 79% of students
Wilmington, DE
AOverall grade136 students4 students per teacher
#10 Most Diverse Private Schools in Wilmington, DE
St. Mark's High School
Diocesan school · Grades 9–12
Largest group: 83% of students
Wilmington, DE
BOverall grade829 students17 students per teacher
#11 Most Diverse Private Schools in Wilmington, DE
Padua Academy
Diocesan school · Grades 9–12
Largest group: 83% of students
Wilmington, DE
A+Overall gradeAll girls424 students11 students per teacher
#12 Most Diverse Private Schools in Wilmington, DE
St. John the Beloved School
Parish school · Grades Pre-K–8
Largest group: 86% of students
Wilmington, DE
B-Overall grade459 students18 students per teacher
#13 Most Diverse Private Schools in Wilmington, DE
St. Peter Cathedral School
Parish school · Grades Pre-K–8
Largest group: 88% of students
Wilmington, DE
A+Overall grade65 students6 students per teacher
#14 Most Diverse Private Schools in Wilmington, DE
St. Ann School
Parish school · Grades Pre-K–8
Largest group: 92% of students
Wilmington, DE
BOverall grade200 students16 students per teacher
#15 Most Diverse Private Schools in Wilmington, DE
St. Mary Magdalen School
Parish school · Grades Pre-K–8
Largest group: 94% of students
Wilmington, DE
B+Overall grade467 students13 students per teacher
#16 Most Diverse Private Schools in Wilmington, DE
Immaculate Heart of Mary
Diocesan school · Grades Pre-K–8
Largest group: 95% of students
Wilmington, DE
B-Overall grade406 students16 students per teacher
#17 Most Diverse Private Schools in Wilmington, DE
Urban Promise School
Christian school (nondenominational) · Grades Pre-K–12
Largest group: 95% of students
Wilmington, DE
AOverall grade85 students6 students per teacher
From official public records, updated October 2026.