#1 College-Bound Private High Schools in Mercer County, NJ
Princeton Day School
Independent school · Grades Pre-K–12
100% of graduates go to four-year colleges
Princeton, NJ
A+Overall grade952 students7 students per teacher
2026 lists
College-Bound Private High Schools in Mercer County, NJ
Private high schools in Mercer County, NJ where the most graduates go on to four-year colleges. Top 9 of 9 schools.
#2 College-Bound Private High Schools in Mercer County, NJ
The Pennington School
Methodist school · Grades 6–12
100% of graduates go to four-year colleges
Pennington, NJ
A+Overall grade537 students6 students per teacher
#3 College-Bound Private High Schools in Mercer County, NJ
Trenton Catholic Preparatory Academy-Upper
Independent Catholic school · Grades K–12
100% of graduates go to four-year colleges
Hamilton, NJ
A+Overall grade399 students10 students per teacher
#4 College-Bound Private High Schools in Mercer County, NJ
Stuart Country Day School of the Sacred Heart
Independent Catholic school · Grades Pre-K–12
100% of graduates go to four-year colleges
Princeton, NJ
A+Overall gradeAll girls283 students4 students per teacher
#5 College-Bound Private High Schools in Mercer County, NJ
Princeton International SCHL of Math and Science
Independent school · Grades 9–12
100% of graduates go to four-year colleges
Princeton, NJ
B+Overall grade120 students6 students per teacher
#6 College-Bound Private High Schools in Mercer County, NJ
Villa Victoria Lower School
Independent Catholic school · Grades 6–12
100% of graduates go to four-year colleges
Trenton, NJ
A+Overall gradeAll girls95 students5 students per teacher
#7 College-Bound Private High Schools in Mercer County, NJ
Villa Victoria Academy
Independent Catholic school · Grades 6–12
100% of graduates go to four-year colleges
Ewing, NJ
A+Overall gradeAll girls94 students6 students per teacher
#8 College-Bound Private High Schools in Mercer County, NJ
Notre Dame High School
Diocesan school · Grades 9–12
99% of graduates go to four-year colleges
Lawrenceville, NJ
B+Overall grade894 students13 students per teacher
#9 College-Bound Private High Schools in Mercer County, NJ
The Lawrenceville School
Independent school · Grades 9–12
99% of graduates go to four-year colleges
Lawrenceville, NJ
AOverall grade802 students7 students per teacher
From official public records, updated October 2026.