#1 Best Catholic Schools in Middlesex County, NJ
St. Joseph Elementary School
Diocesan school · Grades Pre-K–8
The only Catholic school in Carteret
Carteret, NJ
A+Overall grade83 students7 students per teacher
2026 lists
Best Catholic Schools in Middlesex County, NJ
The highest-graded schools of this kind in Middlesex County, NJ. Top 11 of 11 schools.
#2 Best Catholic Schools in Middlesex County, NJ
Holy Savior Academy
Diocesan school · Grades Pre-K–8
Smaller classes than 78% of Catholic schools in New Jersey
South Plainfield, NJ
A+Overall grade121 students9 students per teacher
#3 Best Catholic Schools in Middlesex County, NJ
Immaculate Conception School
Diocesan school · Grades Pre-K–8
Smaller classes than 87% of Catholic schools in New Jersey
Spotswood, NJ
A+Overall grade98 students9 students per teacher
#4 Best Catholic Schools in Middlesex County, NJ
St. Helena School
Parish school · Grades Pre-K–8
The only Catholic school in Edison
Edison, NJ
A+Overall grade162 students12 students per teacher
#5 Best Catholic Schools in Middlesex County, NJ
St. Joseph High School
Independent Catholic school · Grades 9–12
The only all-boys school in Metuchen
Metuchen, NJ
AOverall gradeAll boys571 students13 students per teacher
#6 Best Catholic Schools in Middlesex County, NJ
St. James Elementary School
Diocesan school · Grades Pre-K–8
The only Catholic school in Woodbridge
Woodbridge, NJ
AOverall grade131 students11 students per teacher
#7 Best Catholic Schools in Middlesex County, NJ
St. Stanislaus Kostka School
Parish school · Grades Pre-K–8
Smaller classes than 60% of Catholic schools in New Jersey
Sayreville, NJ
AOverall grade137 students11 students per teacher
#8 Best Catholic Schools in Middlesex County, NJ
St. John Vianney School
Diocesan school · Grades Pre-K–8
Serving families in Colonia since at least 2011
Colonia, NJ
B+Overall grade247 students12 students per teacher
#9 Best Catholic Schools in Middlesex County, NJ
St. Thomas the Apostle School
Diocesan school · Grades Pre-K–8
The only Catholic school in Old Bridge
Old Bridge, NJ
BOverall grade326 students14 students per teacher
#10 Best Catholic Schools in Middlesex County, NJ
St. Francis Cathedral School
Diocesan school · Grades Pre-K–8
One of 2 Catholic schools in Metuchen
Metuchen, NJ
BOverall grade391 students16 students per teacher
#11 Best Catholic Schools in Middlesex County, NJ
St. Bartholomew School
Parish school · Grades Pre-K–8
The only Catholic school in East Brunswick
East Brunswick, NJ
BOverall grade401 students19 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.