#1 Largest Private Schools in Dutchess County, NY
Millbrook School
Independent school · Grades 9–12
330 students
Millbrook, NY
B+Overall grade330 students8 students per teacher
2026 lists
Largest Private Schools in Dutchess County, NY
The private schools in Dutchess County, NY with the most students. Top 20 of 20 schools.
#2 Largest Private Schools in Dutchess County, NY
Trinity-Pawling School
Episcopal school · Grades 7–12
250 students
Pawling, NY
B+Overall grade250 students18 students per teacher
#3 Largest Private Schools in Dutchess County, NY
Holy Trinity School
Diocesan school · Grades Pre-K–8
202 students
Poughkeepsie, NY
BOverall grade202 students21 students per teacher
#4 Largest Private Schools in Dutchess County, NY
St. Mary School
Diocesan school · Grades Pre-K–8
192 students
Fishkill, NY
B+Overall grade192 students16 students per teacher
#5 Largest Private Schools in Dutchess County, NY
St. Martin De Porres School
Parish school · Grades Pre-K–8
171 students
Poughkeepsie, NY
B+Overall grade171 students12 students per teacher
#6 Largest Private Schools in Dutchess County, NY
Oakwood Friends School
Quaker (Friends) school · Grades 6–12
169 students
Poughkeepsie, NY
A+Overall grade169 students6 students per teacher
#7 Largest Private Schools in Dutchess County, NY
Dutchess Day School
Independent school · Grades Pre-K–8
159 students
Millbrook, NY
BOverall grade159 students7 students per teacher
#8 Largest Private Schools in Dutchess County, NY
Anderson Center for Autism
Special education school · Ungraded
144 students
Staatsburg, NY
B+Overall grade144 students6 students per teacher
#9 Largest Private Schools in Dutchess County, NY
Mizzentop Day School
Religious school · Grades Pre-K–8
138 students
Pawling, NY
A+Overall grade138 students4 students per teacher
#10 Largest Private Schools in Dutchess County, NY
Faith Christian Academy
Assembly of God school · Grades Pre-K–12
119 students
Poughkeepsie, NY
AOverall grade119 students7 students per teacher
#11 Largest Private Schools in Dutchess County, NY
Faith Christian Academy
Assembly of God school · Grades Pre-K–12
114 students
Poughkeepsie, NY
B+Overall grade114 students9 students per teacher
#12 Largest Private Schools in Dutchess County, NY
Abilities First
Special education school · Grades K–12
99 students
Poughkeepsie, NY
BOverall grade99 students8 students per teacher
#13 Largest Private Schools in Dutchess County, NY
Tabernacle Christian Academy
Baptist school · Grades K–12
97 students
Poughkeepsie, NY
A+Overall grade97 students7 students per teacher
#14 Largest Private Schools in Dutchess County, NY
Devereux in NY
Special education school · Ungraded
87 students
Red Hook, NY
AOverall grade87 students5 students per teacher
#15 Largest Private Schools in Dutchess County, NY
Upton Lake Christian School
Christian school (nondenominational) · Grades K–12
72 students
Clinton Corners, NY
B+Overall grade72 students7 students per teacher
#16 Largest Private Schools in Dutchess County, NY
Maplebrook School
Special education school · Grades 8–12
58 students
Amenia, NY
A-Overall grade58 students5 students per teacher
#17 Largest Private Schools in Dutchess County, NY
Hudson Hills Academy
Montessori school · Grades Pre-K–8
57 students
Beacon, NY
AOverall grade57 students4 students per teacher
#18 Largest Private Schools in Dutchess County, NY
The Randolph School
Independent school · Grades Pre-K–5
55 students
Wappingers Falls, NY
A+Overall grade55 students4 students per teacher
#19 Largest Private Schools in Dutchess County, NY
Holy Trinity Annex @ St. Peter School
Diocesan school · Grades Pre-K–1
38 students
Poughkeepsie, NY
AOverall grade38 students3 students per teacher
#20 Largest Private Schools in Dutchess County, NY
Poughkeepsie Day School
Independent school · Grades Pre-K–12
27 students
Poughkeepsie, NY
AOverall grade27 students3 students per teacher
From official public records, updated October 2026.