#1 Largest Private Schools in Washtenaw County, MI
Green Hills School
Independent school · Grades 6–12
692 students
Ann Arbor, MI
A+Overall grade692 students8 students per teacher
2026 lists
Largest Private Schools in Washtenaw County, MI
The private schools in Washtenaw County, MI with the most students. Top 21 of 21 schools.
#2 Largest Private Schools in Washtenaw County, MI
FR Gabriel Richard High School
Parish school · Grades 9–12
498 students
Ann Arbor, MI
A+Overall grade498 students11 students per teacher
#3 Largest Private Schools in Washtenaw County, MI
St. Francis of Assisi School
Diocesan school · Grades Pre-K–8
430 students
Ann Arbor, MI
BOverall grade430 students14 students per teacher
#4 Largest Private Schools in Washtenaw County, MI
Emerson School
Independent school · Grades Pre-K–8
327 students
Ann Arbor, MI
B+Overall grade327 students7 students per teacher
#5 Largest Private Schools in Washtenaw County, MI
Washtenaw Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
327 students
Saline, MI
B-Overall grade327 students13 students per teacher
#6 Largest Private Schools in Washtenaw County, MI
Clonlara School
Alternative school · Grades K–12
323 students
Ann Arbor, MI
B-Overall grade323 students22 students per teacher
#7 Largest Private Schools in Washtenaw County, MI
Rudolf Steiner School of Ann Arbor
Independent school · Grades Pre-K–12
266 students
Ann Arbor, MI
A+Overall grade266 students8 students per teacher
#8 Largest Private Schools in Washtenaw County, MI
Arbor Valley Academy
Independent school · Grades 6–12
266 students
Ypsilanti, MI
B-Overall grade266 students
#9 Largest Private Schools in Washtenaw County, MI
Rudolf Steiner School of Ann Arbor
Independent school · Grades Pre-K–12
266 students
Ann Arbor, MI
A+Overall grade266 students5 students per teacher
#10 Largest Private Schools in Washtenaw County, MI
Ann Arbor Christian School
Christian school (nondenominational) · Grades Pre-K–9
216 students
Ann Arbor, MI
B-Overall grade216 students14 students per teacher
#11 Largest Private Schools in Washtenaw County, MI
Spiritus Sanctus Academy
Independent Catholic school · Grades Pre-K–8
204 students
Plymouth, MI
B-Overall grade204 students17 students per teacher
#12 Largest Private Schools in Washtenaw County, MI
St. Paul Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
194 students
Ann Arbor, MI
B+Overall grade194 students14 students per teacher
#13 Largest Private Schools in Washtenaw County, MI
Spiritus Sanctus Academy
Independent Catholic school · Grades K–8
139 students
Ann Arbor, MI
A+Overall grade139 students10 students per teacher
#14 Largest Private Schools in Washtenaw County, MI
Ann Arbor Academy
Special education school · Grades 2–12
104 students
Ann Arbor, MI
AOverall grade104 students4 students per teacher
#15 Largest Private Schools in Washtenaw County, MI
Daycroft School
Montessori school · Grades Pre-K–6
95 students
Ann Arbor, MI
A+Overall grade95 students3 students per teacher
#16 Largest Private Schools in Washtenaw County, MI
The Discovery Center
Early childhood program · Pre-K only
78 students
Ann Arbor, MI
BOverall grade78 students16 students per teacher
#17 Largest Private Schools in Washtenaw County, MI
Hebrew Day School of Ann Arbor
Jewish day school · Grades K–5
56 students
Ann Arbor, MI
AOverall grade56 students5 students per teacher
#18 Largest Private Schools in Washtenaw County, MI
County of Washtenaw
Jewish day school · Grades K–5
54 students
Ann Arbor, MI
AOverall grade54 students5 students per teacher
#19 Largest Private Schools in Washtenaw County, MI
Summers-Knoll School
Alternative school · Grades Pre-K–8
39 students
Ann Arbor, MI
AOverall grade39 students5 students per teacher
#20 Largest Private Schools in Washtenaw County, MI
Veritas Christi Catholic H.S.
Independent Catholic school · Grades 9–12
36 students
Ann Arbor, MI
B+Overall grade36 students33 students per teacher
#21 Largest Private Schools in Washtenaw County, MI
Christian Montessori School of Ann Arbor
Christian (nondenominational) · Montessori · Grades Pre-K–5
36 students
Ann Arbor, MI
A-Overall grade36 students7 students per teacher
From official public records, updated October 2026.