#1 Largest Private Schools in Brown County, SD
Aberdeen Catholic Schools
Parish school · Grades Pre-K–12
482 students
Aberdeen, SD
B-Overall grade482 students13 students per teacher
2026 lists
Largest Private Schools in Brown County, SD
The private schools in Brown County, SD with the most students. Top 7 of 7 schools.
#2 Largest Private Schools in Brown County, SD
Roncalli Primary School
Parish school · Grades Pre-K–12
482 students
Aberdeen, SD
B-Overall grade482 students13 students per teacher
#3 Largest Private Schools in Brown County, SD
Roncalli Jr. & Sr. High School
Parish school · Grades 6–12
232 students
Aberdeen, SD
B-Overall grade232 students11 students per teacher
#4 Largest Private Schools in Brown County, SD
Aberdeen Christian School
Christian school (nondenominational) · Grades Pre-K–12
206 students
Aberdeen, SD
BOverall grade206 students8 students per teacher
#5 Largest Private Schools in Brown County, SD
Roncalli Elementary School
Parish school · Grades 2–5
169 students
Aberdeen, SD
B-Overall grade169 students11 students per teacher
#6 Largest Private Schools in Brown County, SD
Roncalli Primary School
Parish school · Grades Pre-K–1
86 students
Aberdeen, SD
BOverall grade86 students17 students per teacher
#7 Largest Private Schools in Brown County, SD
Trinity Lutheran School
Lutheran (Wisconsin Synod) school · Grades K–8
62 students
Aberdeen, SD
B+Overall grade62 students14 students per teacher
From official public records, updated October 2026.