#1 Fastest-Growing Private Schools in Arlington, VA
Full Circle Montessori School
Montessori school · Ungraded
Enrollment up 90% in about a decade
Arlington, VA
BOverall grade118 students39 students per teacher
2026 lists
Fastest-Growing Private Schools in Arlington, VA
Private schools in Arlington, VA whose enrollment has grown the most over the past decade. Top 5 of 5 schools.
#2 Fastest-Growing Private Schools in Arlington, VA
St. Ann Catholic School
Parish school · Grades Pre-K–8
Enrollment up 45% in about a decade
Arlington, VA
A+Overall grade222 students7 students per teacher
#3 Fastest-Growing Private Schools in Arlington, VA
Our Savior Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
Enrollment up 37% in about a decade
Arlington, VA
BOverall grade159 students16 students per teacher
#4 Fastest-Growing Private Schools in Arlington, VA
St. Thomas More Cathedral School
Diocesan school · Grades Pre-K–8
Enrollment up 28% in about a decade
Arlington, VA
BOverall grade440 students15 students per teacher
#5 Fastest-Growing Private Schools in Arlington, VA
St. Agnes School
Diocesan school · Grades Pre-K–8
Enrollment up 13% in about a decade
Arlington, VA
B+Overall grade417 students12 students per teacher
From official public records, updated October 2026.