#1 Private Schools with the Smallest Classes in Arlington County, VA
The Sycamore School
Alternative school · Grades 5–12
4.2 students per teacher
Arlington, VA
AOverall grade65 students4 students per teacher
2026 lists
Private Schools with the Smallest Classes in Arlington County, VA
Private schools in Arlington County, VA with the fewest students per teacher (not counting preschools and special education schools). Top 10 of 10 schools.
#2 Private Schools with the Smallest Classes in Arlington County, VA
St. Ann Catholic School
Parish school · Grades Pre-K–8
6.6 students per teacher
Arlington, VA
A+Overall grade222 students7 students per teacher
#3 Private Schools with the Smallest Classes in Arlington County, VA
Veritas Collegiate Academy
Christian school (nondenominational) · Grades K–12
7.3 students per teacher
Arlington, VA
A+Overall grade127 students7 students per teacher
#4 Private Schools with the Smallest Classes in Arlington County, VA
The Village School: An Acton Academy
Alternative school · Grades K–8
8.2 students per teacher
Arlington, VA
BOverall grade74 students8 students per teacher
#5 Private Schools with the Smallest Classes in Arlington County, VA
Bishop Denis J. Oconnell High School
Diocesan school · Grades 9–12
9.5 students per teacher
Arlington, VA
A+Overall grade1,155 students10 students per teacher
#6 Private Schools with the Smallest Classes in Arlington County, VA
St. Agnes School
Diocesan school · Grades Pre-K–8
11.9 students per teacher
Arlington, VA
B+Overall grade417 students12 students per teacher
#7 Private Schools with the Smallest Classes in Arlington County, VA
Rivendell School
Religious school · Grades K–8
12.4 students per teacher
Arlington, VA
B+Overall grade147 students12 students per teacher
#8 Private Schools with the Smallest Classes in Arlington County, VA
St. Thomas More Cathedral School
Diocesan school · Grades Pre-K–8
15 students per teacher
Arlington, VA
BOverall grade440 students15 students per teacher
#9 Private Schools with the Smallest Classes in Arlington County, VA
Our Savior Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
15.9 students per teacher
Arlington, VA
BOverall grade159 students16 students per teacher
#10 Private Schools with the Smallest Classes in Arlington County, VA
Full Circle Montessori School
Montessori school · Ungraded
39.3 students per teacher
Arlington, VA
BOverall grade118 students39 students per teacher
From official public records, updated October 2026.