#1 Private Schools with the Smallest Classes in Sioux City, IA
Souixland Christian School
Christian school (nondenominational) · Grades Pre-K–12
7.8 students per teacher
Sioux City, IA
B+Overall grade449 students8 students per teacher
2026 lists
Private Schools with the Smallest Classes in Sioux City, IA
Private schools in Sioux City, IA with the fewest students per teacher (not counting preschools and special education schools). Top 7 of 7 schools.
#2 Private Schools with the Smallest Classes in Sioux City, IA
Mater Dei School
Diocesan school · Grades Pre-K–4
8.9 students per teacher
Sioux City, IA
A+Overall grade130 students9 students per teacher
#3 Private Schools with the Smallest Classes in Sioux City, IA
Sacred Heart School
Diocesan school · Grades Pre-K–8
9 students per teacher
Sioux City, IA
A+Overall grade333 students9 students per teacher
#4 Private Schools with the Smallest Classes in Sioux City, IA
Cathedral Dual Language Academy
Parish school · Grades Pre-K–4
10.2 students per teacher
Sioux City, IA
B+Overall grade67 students10 students per teacher
#5 Private Schools with the Smallest Classes in Sioux City, IA
Bishop Heelan Catholic Schools
Parish school · Grades Pre-K–12
13 students per teacher
Sioux City, IA
BOverall grade1,510 students13 students per teacher
#6 Private Schools with the Smallest Classes in Sioux City, IA
Bishop Heelan Catholic High School
Diocesan school · Grades 9–12
13.5 students per teacher
Sioux City, IA
A-Overall grade527 students14 students per teacher
#7 Private Schools with the Smallest Classes in Sioux City, IA
Mater Dei School-Nativity
Diocesan school · Grades Pre-K–8
26.3 students per teacher
Sioux City, IA
B-Overall grade263 students26 students per teacher
From official public records, updated October 2026.