#1 Best Private Schools in the Diocese of Sioux Falls
Christ the King Grade School
Parish school · Grades Pre-K–6
Smaller classes than 94% of Catholic schools in South Dakota
Sioux Falls, SD
AOverall grade102 students5 students per teacher
2026 lists
Best Private Schools in the Diocese of Sioux Falls
Private schools in the Diocese of Sioux Falls with the highest overall grades. Top 18 of 18 schools.
#2 Best Private Schools in the Diocese of Sioux Falls
St. John Paul II Elementary School
Parish school · Grades Pre-K–6
Smaller classes than 69% of Catholic schools in South Dakota
Mitchell, SD
AOverall grade82 students8 students per teacher
#3 Best Private Schools in the Diocese of Sioux Falls
Sacred Heart School
Parish school · Grades Pre-K–8
Smaller classes than 62% of Catholic schools in South Dakota
Yankton, SD
AOverall grade263 students9 students per teacher
#4 Best Private Schools in the Diocese of Sioux Falls
St. Thomas More Catholic School
Parish school · Grades Pre-K–4
Smaller classes than 75% of Catholic schools in South Dakota
Brookings, SD
B+Overall grade74 students7 students per teacher
#5 Best Private Schools in the Diocese of Sioux Falls
St. Joseph Indian School
Independent Catholic school · Grades 1–8
Smaller classes than 81% of Catholic schools in South Dakota
Chamberlain, SD
B+Overall grade134 students7 students per teacher
#6 Best Private Schools in the Diocese of Sioux Falls
Sacred Heart Middle School
Independent Catholic school · Grades Pre-K–8
One of 2 Catholic schools in Yankton
Yankton, SD
B+Overall grade230 students9 students per teacher
#7 Best Private Schools in the Diocese of Sioux Falls
Holy Trinity Catholic Elementary School
Parish school · Grades Pre-K–5
One of the most diverse private schools in South Dakota
Huron, SD
B+Overall grade97 students12 students per teacher
#8 Best Private Schools in the Diocese of Sioux Falls
St. Agnes Elementary School
Diocesan school · Grades Pre-K–5
Serving families in Vermillion since at least 2011
Vermillion, SD
B+Overall grade88 students10 students per teacher
#9 Best Private Schools in the Diocese of Sioux Falls
St. Lawrence School
Parish school · Grades Pre-K–6
Serving families in Milbank since at least 2011
Milbank, SD
BOverall grade91 students10 students per teacher
#10 Best Private Schools in the Diocese of Sioux Falls
St. Michael School
Diocesan school · Grades Pre-K–6
Serving families in Sioux Falls since at least 2011
Sioux Falls, SD
BOverall grade187 students10 students per teacher
#11 Best Private Schools in the Diocese of Sioux Falls
Roncalli Primary School
Parish school · Grades Pre-K–1
Serving families in Aberdeen since at least 2011
Aberdeen, SD
BOverall grade86 students17 students per teacher
#12 Best Private Schools in the Diocese of Sioux Falls
O'Gorman Junior High School
Diocesan school · Grades 7–8
One of 4 Catholic schools in Sioux Falls
Sioux Falls, SD
BOverall grade329 students12 students per teacher
#13 Best Private Schools in the Diocese of Sioux Falls
Roncalli Jr. & Sr. High School
Parish school · Grades 6–12
The smallest classes of any Catholic school in Aberdeen
Aberdeen, SD
B-Overall grade232 students11 students per teacher
#14 Best Private Schools in the Diocese of Sioux Falls
Roncalli Elementary School
Parish school · Grades 2–5
Serving families in Aberdeen since at least 2011
Aberdeen, SD
B-Overall grade169 students11 students per teacher
#15 Best Private Schools in the Diocese of Sioux Falls
Roncalli Primary School
Parish school · Grades Pre-K–12
One of the 3 largest Catholic schools in South Dakota
Aberdeen, SD
B-Overall grade482 students13 students per teacher
#16 Best Private Schools in the Diocese of Sioux Falls
St. Mary Catholic School
Diocesan school · Grades Pre-K–12
90% of graduates go to four-year colleges
Dell Rapids, SD
B-Overall grade222 students14 students per teacher
#17 Best Private Schools in the Diocese of Sioux Falls
Aberdeen Catholic Schools
Parish school · Grades Pre-K–12
One of the 3 largest Catholic schools in South Dakota
Aberdeen, SD
B-Overall grade482 students13 students per teacher
#18 Best Private Schools in the Diocese of Sioux Falls
Sioux Falls Catholic School
Parish school · Grades Pre-K–12
The largest of 24 Catholic schools in South Dakota
Sioux Falls, SD
B-Overall grade2,231 students22 students per teacher
Grades compare each school's official facts, such as class size, how long it has served families and where graduates go, with similar schools. They're a starting point: visit, ask questions and trust what you see.