#1 Largest Private Schools in Sioux Falls, SD
Sioux Falls Catholic School
Parish school · Grades Pre-K–12
2,231 students
Sioux Falls, SD
B-Overall grade2,231 students22 students per teacher
2026 lists
Largest Private Schools in Sioux Falls, SD
The private schools in Sioux Falls, SD with the most students. Top 15 of 15 schools.
#2 Largest Private Schools in Sioux Falls, SD
Sioux Falls Christian Schools
Christian school (nondenominational) · Grades Pre-K–12
1,382 students
Sioux Falls, SD
B-Overall grade1,382 students17 students per teacher
#3 Largest Private Schools in Sioux Falls, SD
O'Gorman Junior High School
Diocesan school · Grades 7–8
329 students
Sioux Falls, SD
BOverall grade329 students12 students per teacher
#4 Largest Private Schools in Sioux Falls, SD
Sioux Falls Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–12
301 students
Sioux Falls, SD
B-Overall grade301 students13 students per teacher
#5 Largest Private Schools in Sioux Falls, SD
Sioux Falls Lutheran School
Lutheran (Missouri Synod) school · Grades K–12
295 students
Sioux Falls, SD
B-Overall grade295 students11 students per teacher
#6 Largest Private Schools in Sioux Falls, SD
St. Michael School
Diocesan school · Grades Pre-K–6
187 students
Sioux Falls, SD
BOverall grade187 students10 students per teacher
#7 Largest Private Schools in Sioux Falls, SD
Lifescape
Special education school · Grades 1–12
107 students
Sioux Falls, SD
B-Overall grade107 students9 students per teacher
#8 Largest Private Schools in Sioux Falls, SD
Christ the King Grade School
Parish school · Grades Pre-K–6
102 students
Sioux Falls, SD
AOverall grade102 students5 students per teacher
#9 Largest Private Schools in Sioux Falls, SD
Children's Home Society of Sd/Loving School
Alternative school · Grades Pre-K–8
85 students
Sioux Falls, SD
A+Overall grade85 students7 students per teacher
#10 Largest Private Schools in Sioux Falls, SD
Good Shepherd Lutheran
Lutheran (Wisconsin Synod) school · Grades K–8
52 students
Sioux Falls, SD
B+Overall grade52 students10 students per teacher
#11 Largest Private Schools in Sioux Falls, SD
Accurate and Conscious Education Academy
Alternative school · Grades Pre-K–10
46 students
Sioux Falls, SD
B+Overall grade46 students8 students per teacher
#12 Largest Private Schools in Sioux Falls, SD
McCrossan Boys Ranch
Independent school · Grades 6–12
40 students
Sioux Falls, SD
AOverall gradeAll boys40 students4 students per teacher
#13 Largest Private Schools in Sioux Falls, SD
Cornerstone School
Christian school (nondenominational) · Grades 1–12
37 students
Sioux Falls, SD
B+Overall grade37 students10 students per teacher
#14 Largest Private Schools in Sioux Falls, SD
Bethel Lutheran School
Lutheran (Wisconsin Synod) school · Grades K–8
28 students
Sioux Falls, SD
A-Overall grade28 students11 students per teacher
#15 Largest Private Schools in Sioux Falls, SD
Westside Christian School
Christian school (nondenominational) · Grades Pre-K–5
21 students
Sioux Falls, SD
AOverall grade21 students5 students per teacher
From official public records, updated October 2026.