#25 Largest Private Schools in New Castle County, DE
Urban Promise School
Christian school (nondenominational) · Grades Pre-K–12
85 students
Wilmington, DE
AOverall grade85 students6 students per teacher
2026 lists
Largest Private Schools in New Castle County, DE
The private schools in New Castle County, DE with the most students. Top 39 of 39 schools.
From official public records, updated October 2026.