#1 Largest Private Schools in Albany, NY
Albany Academies
Independent school · Grades Pre-K–12
620 students
Albany, NY
BOverall grade620 students8 students per teacher
2026 lists
Largest Private Schools in Albany, NY
The private schools in Albany, NY with the most students. Top 15 of 15 schools.
#2 Largest Private Schools in Albany, NY
St. Pius X School
Diocesan school · Grades Pre-K–8
355 students
Albany, NY
B-Overall grade355 students14 students per teacher
#3 Largest Private Schools in Albany, NY
Academy of the Holy Names
Independent Catholic school · Grades 6–12
210 students
Albany, NY
A+Overall gradeAll girls210 students10 students per teacher
#4 Largest Private Schools in Albany, NY
All Saints Catholic Academy
Parish school · Grades Pre-K–8
159 students
Albany, NY
A+Overall grade159 students11 students per teacher
#5 Largest Private Schools in Albany, NY
Neil Hellman School/Northern Rivers Family Service
Special education school · Grades 3–12
138 students
Albany, NY
BOverall grade138 students5 students per teacher
#6 Largest Private Schools in Albany, NY
Our Savior's Christian School
Christian school (nondenominational) · Grades Pre-K–8
133 students
Albany, NY
BOverall grade133 students12 students per teacher
#7 Largest Private Schools in Albany, NY
Mater Christi School
Diocesan school · Grades Pre-K–8
111 students
Albany, NY
A+Overall grade111 students6 students per teacher
#8 Largest Private Schools in Albany, NY
Blessed Sacrament School
Diocesan school · Grades Pre-K–8
94 students
Albany, NY
A+Overall grade94 students5 students per teacher
#9 Largest Private Schools in Albany, NY
Maimonides Hebrew Day School
Jewish day school · Grades Pre-K–12
92 students
Albany, NY
AOverall grade92 students6 students per teacher
#10 Largest Private Schools in Albany, NY
Lasalle School
Independent Catholic school · Grades 7–12
56 students
Albany, NY
AOverall gradeAll boys56 students4 students per teacher
#11 Largest Private Schools in Albany, NY
St. Catherine's CTR for Children R & E May School
Special education school · Grades K–6
52 students
Albany, NY
AOverall grade52 students5 students per teacher
#12 Largest Private Schools in Albany, NY
Hebrew Academy of the Capital District
Jewish day school · Grades K–8
51 students
Albany, NY
AOverall grade51 students5 students per teacher
#13 Largest Private Schools in Albany, NY
St. Anne Institute
Special education school · Grades 7–12
38 students
Albany, NY
AOverall gradeAll girls38 students3 students per teacher
#14 Largest Private Schools in Albany, NY
Castle Island Bilingual Montessori
Montessori school · Grades Pre-K–4
21 students
Albany, NY
AOverall grade21 students3 students per teacher
#15 Largest Private Schools in Albany, NY
Castle Island Bilingual Montessori
Montessori school · Grades Pre-K–4
21 students
Albany, NY
A-Overall grade21 students5 students per teacher
From official public records, updated October 2026.