#1 Best Private Schools in the Diocese of Bismarck
Trinity Catholic School
Diocesan school · Grades Pre-K–12
The smallest classes of any Catholic school in Dickinson
Dickinson, ND
AOverall grade611 students9 students per teacher
2026 lists
Best Private Schools in the Diocese of Bismarck
Private schools in the Diocese of Bismarck with the highest overall grades. Top 11 of 11 schools.
#2 Best Private Schools in the Diocese of Bismarck
Trinity Catholic Schools
Diocesan school · Grades 7–12
Smaller classes than 80% of Catholic schools nationwide
Dickinson, ND
A-Overall grade239 students9 students per teacher
#3 Best Private Schools in the Diocese of Bismarck
Christ the King Catholic Montessori School
Parish school · Grades Pre-K–6
Serving families in Mandan since at least 2011
Mandan, ND
B+Overall grade133 students12 students per teacher
#4 Best Private Schools in the Diocese of Bismarck
Trinity Elementary East
Diocesan school · Grades K–4
Serving families in Dickinson since at least 2011
Dickinson, ND
B+Overall grade91 students12 students per teacher
#5 Best Private Schools in the Diocese of Bismarck
Bishop Ryan Catholic School
Parish school · Grades Pre-K–12
The only Catholic school in Minot
Minot, ND
B+Overall grade376 students11 students per teacher
#6 Best Private Schools in the Diocese of Bismarck
St. Joseph's School
Diocesan school · Grades K–6
One of the most diverse private schools in North Dakota
Williston, ND
B+Overall grade160 students12 students per teacher
#7 Best Private Schools in the Diocese of Bismarck
Trinity Elementary West
Diocesan school · Grades K–4
Growing: enrollment up 30% since 2011–12
Dickinson, ND
BOverall grade197 students13 students per teacher
#8 Best Private Schools in the Diocese of Bismarck
St. Mary's Central High School
Diocesan school · Grades 9–12
The smallest classes of any Catholic school in Bismarck
Bismarck, ND
BOverall grade349 students13 students per teacher
#9 Best Private Schools in the Diocese of Bismarck
St. Mary's Grade School
Diocesan school · Grades K–5
One of the most diverse private schools in North Dakota
Bismarck, ND
B-Overall grade226 students16 students per teacher
#10 Best Private Schools in the Diocese of Bismarck
Light of Christ Catholic Schools
Diocesan school · Grades Pre-K–12
The largest of 25 Catholic schools in North Dakota
Bismarck, ND
B-Overall grade1,314 students15 students per teacher
#11 Best Private Schools in the Diocese of Bismarck
St. Anne School
Independent Catholic school · Grades Pre-K–5
One of the most diverse private schools in North Dakota
Bismarck, ND
B-Overall grade195 students18 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.