#1 Private Schools with the Smallest Classes in Sioux Falls, SD
McCrossan Boys Ranch
Independent school · Grades 6–12
4.4 students per teacher
Sioux Falls, SD
AOverall gradeAll boys40 students4 students per teacher
2026 lists
Private Schools with the Smallest Classes in Sioux Falls, SD
Private schools in Sioux Falls, SD with the fewest students per teacher (not counting preschools and special education schools). Top 11 of 11 schools.
#2 Private Schools with the Smallest Classes in Sioux Falls, SD
Christ the King Grade School
Parish school · Grades Pre-K–6
5.3 students per teacher
Sioux Falls, SD
AOverall grade102 students5 students per teacher
#3 Private Schools with the Smallest Classes in Sioux Falls, SD
Children's Home Society of Sd/Loving School
Alternative school · Grades Pre-K–8
7.3 students per teacher
Sioux Falls, SD
A+Overall grade85 students7 students per teacher
#4 Private Schools with the Smallest Classes in Sioux Falls, SD
Accurate and Conscious Education Academy
Alternative school · Grades Pre-K–10
8.4 students per teacher
Sioux Falls, SD
B+Overall grade46 students8 students per teacher
#5 Private Schools with the Smallest Classes in Sioux Falls, SD
St. Michael School
Diocesan school · Grades Pre-K–6
9.8 students per teacher
Sioux Falls, SD
BOverall grade187 students10 students per teacher
#6 Private Schools with the Smallest Classes in Sioux Falls, SD
Good Shepherd Lutheran
Lutheran (Wisconsin Synod) school · Grades K–8
10.4 students per teacher
Sioux Falls, SD
B+Overall grade52 students10 students per teacher
#7 Private Schools with the Smallest Classes in Sioux Falls, SD
Sioux Falls Lutheran School
Lutheran (Missouri Synod) school · Grades K–12
10.5 students per teacher
Sioux Falls, SD
B-Overall grade295 students11 students per teacher
#8 Private Schools with the Smallest Classes in Sioux Falls, SD
O'Gorman Junior High School
Diocesan school · Grades 7–8
12.4 students per teacher
Sioux Falls, SD
BOverall grade329 students12 students per teacher
#9 Private Schools with the Smallest Classes in Sioux Falls, SD
Sioux Falls Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–12
12.6 students per teacher
Sioux Falls, SD
B-Overall grade301 students13 students per teacher
#10 Private Schools with the Smallest Classes in Sioux Falls, SD
Sioux Falls Christian Schools
Christian school (nondenominational) · Grades Pre-K–12
16.8 students per teacher
Sioux Falls, SD
B-Overall grade1,382 students17 students per teacher
#11 Private Schools with the Smallest Classes in Sioux Falls, SD
Sioux Falls Catholic School
Parish school · Grades Pre-K–12
21.8 students per teacher
Sioux Falls, SD
B-Overall grade2,231 students22 students per teacher
From official public records, updated October 2026.