#1 Largest Private Schools in Williamson County, TN
Grace Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
833 students
Franklin, TN
B-Overall grade833 students14 students per teacher
2026 lists
Largest Private Schools in Williamson County, TN
The private schools in Williamson County, TN with the most students. Top 19 of 19 schools.
#2 Largest Private Schools in Williamson County, TN
St. Matthew Catholic School
Parish school · Grades Pre-K–8
418 students
Franklin, TN
B-Overall grade418 students16 students per teacher
#3 Largest Private Schools in Williamson County, TN
Currey Ingram Academy
Special education school · Grades K–12
392 students
Brentwood, TN
AOverall grade392 students5 students per teacher
#4 Largest Private Schools in Williamson County, TN
Franklin Christian Academy
Christian school (nondenominational) · Grades 5–12
379 students
Franklin, TN
B-Overall grade379 students14 students per teacher
#5 Largest Private Schools in Williamson County, TN
Thales Academy
Independent school · Grades Pre-K–7
283 students
Franklin, TN
B-Overall grade283 students14 students per teacher
#6 Largest Private Schools in Williamson County, TN
New Hope Academy
Christian school (nondenominational) · Grades Pre-K–6
193 students
Franklin, TN
A+Overall grade193 students9 students per teacher
#7 Largest Private Schools in Williamson County, TN
Generations Christian Academy
Christian school (nondenominational) · Grades K–10
134 students
Franklin, TN
B-Overall grade134 students12 students per teacher
#8 Largest Private Schools in Williamson County, TN
Trinitas Classical Academy
Christian school (nondenominational) · Grades Pre-K–12
89 students
Franklin, TN
AOverall grade89 students7 students per teacher
#9 Largest Private Schools in Williamson County, TN
Harpeth Montessori
Montessori school · Grades Pre-K–5
45 students
Franklin, TN
B+Overall grade45 students6 students per teacher
#10 Largest Private Schools in Williamson County, TN
Galileo Education
Independent school · Grades K–11
43 students
Franklin, TN
B+Overall grade43 students9 students per teacher
#11 Largest Private Schools in Williamson County, TN
Cool Springs Montessori
Independent school · Kindergarten only
32 students
Franklin, TN
AOverall grade32 students4 students per teacher
#12 Largest Private Schools in Williamson County, TN
Montessori School of Franklin
Montessori school · Grades Pre-K–4
28 students
Franklin, TN
B+Overall grade28 students6 students per teacher
#13 Largest Private Schools in Williamson County, TN
Otter Creek Kindergarten & Preschool
Early childhood program · Grades Pre-K–K
27 students
Brentwood, TN
B+Overall grade27 students14 students per teacher
#14 Largest Private Schools in Williamson County, TN
Gateway Academy at the Learning Lab
Independent school · Grades 2–12
26 students
Brentwood, TN
AOverall grade26 students1 students per teacher
#15 Largest Private Schools in Williamson County, TN
Primrose School of Spring Hill
Early childhood program · Grades Pre-K–K
24 students
Spring Hill, TN
B+Overall grade24 students12 students per teacher
#16 Largest Private Schools in Williamson County, TN
Chesterton Academy of the Incarnation
Independent Catholic school · Grades 9–11
24 students
Franklin, TN
AOverall grade24 students5 students per teacher
#17 Largest Private Schools in Williamson County, TN
Fusion Academy Franklin
Independent school · Grades 6–12
23 students
Franklin, TN
AOverall grade23 students2 students per teacher
#18 Largest Private Schools in Williamson County, TN
Montessori School of Franklin
Montessori school · Grades Pre-K–4
22 students
Franklin, TN
AOverall grade22 students4 students per teacher
#19 Largest Private Schools in Williamson County, TN
High Hopes Development Center
Early childhood program · Grades Pre-K–K
20 students
Franklin, TN
AOverall grade20 students1 students per teacher
From official public records, updated October 2026.