#1 Best Private Schools in the Diocese of Great Falls-Billings
Billings Central Catholic High School
Diocesan school · Grades 3–12
Smaller classes than 95% of Catholic schools nationwide
Billings, MT
A+Overall grade344 students5 students per teacher
2026 lists
Best Private Schools in the Diocese of Great Falls-Billings
Private schools in the Diocese of Great Falls-Billings with the highest overall grades. Top 12 of 12 schools.
#2 Best Private Schools in the Diocese of Great Falls-Billings
St. Marys Catholic School
Parish school · Grades Pre-K–8
Smaller classes than 75% of Catholic schools in Montana
Livingston, MT
A+Overall grade101 students7 students per teacher
#3 Best Private Schools in the Diocese of Great Falls-Billings
St. Charles Mission School
Independent Catholic school · Grades Pre-K–8
Smaller classes than 67% of Catholic schools in Montana
Pryor, MT
AOverall grade70 students8 students per teacher
#4 Best Private Schools in the Diocese of Great Falls-Billings
St. Labre High School
Diocesan school · Grades 9–12
Smaller classes than 93% of Catholic schools nationwide
Ashland, MT
A-Overall grade112 students6 students per teacher
#5 Best Private Schools in the Diocese of Great Falls-Billings
St. Labre Catholic Elementary School
Independent Catholic school · Grades Pre-K–4
Smaller classes than 92% of Catholic schools in Montana
Ashland, MT
A-Overall grade61 students6 students per teacher
#6 Best Private Schools in the Diocese of Great Falls-Billings
St. Jude Thaddeus School
Parish school · Grades Pre-K–8
Serving families in Havre since at least 2011
Havre, MT
B+Overall grade113 students11 students per teacher
#7 Best Private Schools in the Diocese of Great Falls-Billings
St. Labre Schools
Independent Catholic school · Grades Pre-K–12
Smaller classes than 93% of Catholic schools nationwide
Ashland, MT
BOverall grade422 students5 students per teacher
#8 Best Private Schools in the Diocese of Great Falls-Billings
Pretty Eagle Cthlc SCHL
Independent Catholic school · Grades Pre-K–8
A Catholic school in Saint Xavier
Saint Xavier, MT
BOverall grade100 students9 students per teacher
#9 Best Private Schools in the Diocese of Great Falls-Billings
Our Lady of Lourdes Catholic School
Parish school · Grades Pre-K–8
Serving families in Great Falls since at least 2011
Great Falls, MT
BOverall grade173 students14 students per teacher
#10 Best Private Schools in the Diocese of Great Falls-Billings
St. Francis Catholic School
Diocesan school · Grades K–8
The largest of 22 Catholic schools in Montana
Billings, MT
B-Overall grade603 students13 students per teacher
#11 Best Private Schools in the Diocese of Great Falls-Billings
Sacred Heart Elementary School
Diocesan school · Grades Pre-K–8
Growing: enrollment up 127% since 2011–12
Miles City, MT
B-Overall grade159 students17 students per teacher
#12 Best Private Schools in the Diocese of Great Falls-Billings
Sacred Heart School
Parish school · Grades Pre-K–8
One of 2 Catholic schools in Miles City
Miles City, MT
B-Overall grade160 students16 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.