#1 Private Schools with the Smallest Classes in Brown County, SD
Aberdeen Christian School
Christian school (nondenominational) · Grades Pre-K–12
8 students per teacher
Aberdeen, SD
BOverall grade206 students8 students per teacher
2026 lists
Private Schools with the Smallest Classes in Brown County, SD
Private schools in Brown County, SD 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 Brown County, SD
Roncalli Jr. & Sr. High School
Parish school · Grades 6–12
11.1 students per teacher
Aberdeen, SD
B-Overall grade232 students11 students per teacher
#3 Private Schools with the Smallest Classes in Brown County, SD
Roncalli Elementary School
Parish school · Grades 2–5
11.3 students per teacher
Aberdeen, SD
B-Overall grade169 students11 students per teacher
#4 Private Schools with the Smallest Classes in Brown County, SD
Aberdeen Catholic Schools
Parish school · Grades Pre-K–12
13 students per teacher
Aberdeen, SD
B-Overall grade482 students13 students per teacher
#5 Private Schools with the Smallest Classes in Brown County, SD
Roncalli Primary School
Parish school · Grades Pre-K–12
13.2 students per teacher
Aberdeen, SD
B-Overall grade482 students13 students per teacher
#6 Private Schools with the Smallest Classes in Brown County, SD
Trinity Lutheran School
Lutheran (Wisconsin Synod) school · Grades K–8
13.5 students per teacher
Aberdeen, SD
B+Overall grade62 students14 students per teacher
#7 Private Schools with the Smallest Classes in Brown County, SD
Roncalli Primary School
Parish school · Grades Pre-K–1
17.2 students per teacher
Aberdeen, SD
BOverall grade86 students17 students per teacher
From official public records, updated October 2026.