#1 Fastest-Growing Private Schools in Suffolk County, NY
Ross School
Independent school · Grades Pre-K–12
Enrollment up 192% in about a decade
East Hampton, NY
A+Overall grade286 students5 students per teacher
2026 lists
Fastest-Growing Private Schools in Suffolk County, NY
Private schools in Suffolk County, NY whose enrollment has grown the most over the past decade. Top 7 of 7 schools.
#2 Fastest-Growing Private Schools in Suffolk County, NY
MDQ Academy
Islamic school · Grades Pre-K–12
Enrollment up 108% in about a decade
Brentwood, NY
AOverall grade276 students9 students per teacher
#3 Fastest-Growing Private Schools in Suffolk County, NY
Our Lady of Guadalupe Catholic School
Diocesan school · Grades Pre-K–8
Enrollment up 47% in about a decade
Deer Park, NY
A+Overall grade380 students12 students per teacher
#4 Fastest-Growing Private Schools in Suffolk County, NY
Victory Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
Enrollment up 47% in about a decade
East Patchogue, NY
AOverall grade72 students6 students per teacher
#5 Fastest-Growing Private Schools in Suffolk County, NY
The Stony Brook School
Christian school (nondenominational) · Grades 7–12
Enrollment up 41% in about a decade
Stony Brook, NY
B+Overall grade442 students10 students per teacher
#6 Fastest-Growing Private Schools in Suffolk County, NY
Leonard E Burket Christian School
Assembly of God school · Grades Pre-K–12
Enrollment up 27% in about a decade
Center Moriches, NY
B+Overall grade81 students20 students per teacher
#7 Fastest-Growing Private Schools in Suffolk County, NY
Harbor Country Day School
Independent school · Grades Pre-K–8
Enrollment up 23% in about a decade
Saint James, NY
A-Overall grade117 students6 students per teacher
From official public records, updated October 2026.