#1 Best Private Schools in Sussex County, NJ
Rev George a Brown School
Diocesan school · Grades Pre-K–4
Serving families in Sparta since at least 2011
Sparta, NJ
A-Overall grade295 students12 students per teacher
2026 lists
Best Private Schools in Sussex County, NJ
Private schools in Sussex County, NJ with the highest overall grades. Top 5 of 5 schools.
#2 Best Private Schools in Sussex County, NJ
Sussex Christian School
Christian school (nondenominational) · Grades Pre-K–8
Serving families in Sussex since at least 2011
Sussex, NJ
A-Overall grade137 students11 students per teacher
#3 Best Private Schools in Sussex County, NJ
Pope John Xxiii Middle School
Diocesan school · Grades 5–7
The smallest classes of any Catholic school in Sparta
Sparta, NJ
BOverall grade211 students12 students per teacher
#4 Best Private Schools in Sussex County, NJ
Northwest Christian School
Christian school (nondenominational) · Grades Pre-K–8
Serving families in Newton since at least 2011
Newton, NJ
B-Overall grade149 students15 students per teacher
#5 Best Private Schools in Sussex County, NJ
Pope John Xxiii High School
Diocesan school · Grades 8–12
The largest Catholic school in Sparta
Sparta, NJ
B-Overall grade711 students14 students per teacher
Grades compare each school's official facts, such as class size, how long it has served families and where graduates go, with similar schools. They're a starting point: visit, ask questions and trust what you see.