#1 Best Catholic Schools in Suffolk County, NY
Our Lady of the Hamptons Regional Catholic School
Parish school · Grades Pre-K–8
The only Catholic school in Southampton
Southampton, NY
A+Overall grade291 students11 students per teacher
2026 lists
Best Catholic Schools in Suffolk County, NY
The highest-graded schools of this kind in Suffolk County, NY. Top 12 of 12 schools.
#2 Best Catholic Schools in Suffolk County, NY
Our Lady of Guadalupe Catholic School
Diocesan school · Grades Pre-K–8
Growing: enrollment up 47% since 2011–12
Deer Park, NY
A+Overall grade380 students12 students per teacher
#3 Best Catholic Schools in Suffolk County, NY
St. John the Baptist Diocesan High School
Diocesan school · Grades 9–12
100% of graduates go to four-year colleges
West Islip, NY
AOverall grade969 students15 students per teacher
#4 Best Catholic Schools in Suffolk County, NY
St. John Paul II Regional School
Diocesan school · Grades Pre-K–8
Smaller classes than 83% of Catholic schools in New York
Riverhead, NY
AOverall grade147 students7 students per teacher
#5 Best Catholic Schools in Suffolk County, NY
SS Philip & James School
Diocesan school · Grades Pre-K–8
The only Catholic school in Saint James
Saint James, NY
AOverall grade126 students10 students per teacher
#6 Best Catholic Schools in Suffolk County, NY
Trinity Regional School-East Northport Campus
Diocesan school · Grades Pre-K–8
Serving families in East Northport since at least 2011
East Northport, NY
A-Overall grade253 students12 students per teacher
#7 Best Catholic Schools in Suffolk County, NY
St. Patrick's School
Parish school · Grades Pre-K–8
Smaller classes than 60% of Catholic schools in New York
Huntington, NY
A-Overall grade445 students11 students per teacher
#8 Best Catholic Schools in Suffolk County, NY
St. Patrick School
Diocesan school · Grades Pre-K–8
Serving families in Bay Shore since at least 2011
Bay Shore, NY
A-Overall grade395 students15 students per teacher
#9 Best Catholic Schools in Suffolk County, NY
Holy Angels Regional School
Diocesan school · Grades Pre-K–8
A Catholic school in Patchogue
Patchogue, NY
B+Overall grade191 students12 students per teacher
#10 Best Catholic Schools in Suffolk County, NY
St. Anthony's High School
Parish school · Grades 9–12
The only Catholic school in Huntington Station
Huntington Station, NY
B+Overall grade2,435 students19 students per teacher
#11 Best Catholic Schools in Suffolk County, NY
St. Mary School
Parish school · Grades K–8
Serving families in East Islip since at least 2011
East Islip, NY
BOverall grade331 students16 students per teacher
#12 Best Catholic Schools in Suffolk County, NY
St. Patrick Elementary School
Diocesan school · Grades Pre-K–8
The only Catholic school in Smithtown
Smithtown, NY
BOverall grade379 students15 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.