#1 Best Catholic Schools in the Diocese of Belleville
Blessed Sacrament School
Parish school · Grades Pre-K–8
The smallest classes of any Catholic school in Belleville
Belleville, IL
A+Overall grade142 students10 students per teacher
2026 lists
Best Catholic Schools in the Diocese of Belleville
The highest-graded schools of this kind in the Diocese of Belleville. Top 21 of 21 schools.
#2 Best Catholic Schools in the Diocese of Belleville
Holy Trinity Catholic School
Parish school · Grades Pre-K–8
The only Catholic school in Fairview Heights
Fairview Heights, IL
A+Overall grade204 students11 students per teacher
#3 Best Catholic Schools in the Diocese of Belleville
Our Lady Queen of Peace School
Parish school · Grades Pre-K–8
Serving families in Belleville since at least 2011
Belleville, IL
A+Overall grade139 students12 students per teacher
#4 Best Catholic Schools in the Diocese of Belleville
Gibault Catholic
Diocesan school · Grades 9–12
98% of graduates go to four-year colleges
Waterloo, IL
A+Overall grade192 students12 students per teacher
#5 Best Catholic Schools in the Diocese of Belleville
St. Mary Catholic School
Diocesan school · Grades Pre-K–8
Smaller classes than 92% of Catholic schools in Illinois
Mount Carmel, IL
AOverall grade78 students7 students per teacher
#6 Best Catholic Schools in the Diocese of Belleville
St. Mary School
Parish school · Grades Pre-K–8
The only Catholic school in Centralia
Centralia, IL
AOverall grade98 students11 students per teacher
#7 Best Catholic Schools in the Diocese of Belleville
St. Bruno Catholic School
Parish school · Grades Pre-K–8
Smaller classes than 94% of Catholic schools in Illinois
Pinckneyville, IL
AOverall grade60 students6 students per teacher
#8 Best Catholic Schools in the Diocese of Belleville
St. Mary's Catholic School
Parish school · Grades Pre-K–8
Smaller classes than 90% of Catholic schools in Illinois
Chester, IL
AOverall grade60 students8 students per teacher
#9 Best Catholic Schools in the Diocese of Belleville
St. Teresa Catholic School
Diocesan school · Grades Pre-K–8
Smaller classes than 61% of Catholic schools in Illinois
Belleville, IL
AOverall grade153 students11 students per teacher
#10 Best Catholic Schools in the Diocese of Belleville
Althoff Catholic High School
Diocesan school · Grades 9–12
The largest Catholic school in Belleville
Belleville, IL
AOverall grade335 students15 students per teacher
#11 Best Catholic Schools in the Diocese of Belleville
Sister Thea Bowman
Diocesan school · Grades K–8
Smaller classes than 84% of Catholic schools in Illinois
East Saint Louis, IL
AOverall grade101 students9 students per teacher
#12 Best Catholic Schools in the Diocese of Belleville
St. James Catholic School
Diocesan school · Grades Pre-K–8
Smaller classes than 86% of Catholic schools in Illinois
Millstadt, IL
AOverall grade81 students9 students per teacher
#13 Best Catholic Schools in the Diocese of Belleville
St. John the Baptist School
Diocesan school · Grades Pre-K–8
Smaller classes than 85% of Catholic schools in Illinois
Smithton, IL
A-Overall grade64 students9 students per teacher
#14 Best Catholic Schools in the Diocese of Belleville
St. Andrew Catholic School
Parish school · Grades Pre-K–8
Growing: enrollment up 23% since 2011–12
Murphysboro, IL
A-Overall grade132 students12 students per teacher
#15 Best Catholic Schools in the Diocese of Belleville
Holy Childhood of Jesus School
Parish school · Grades Pre-K–8
Smaller classes than 80% of Catholic schools in Illinois
Mascoutah, IL
B+Overall grade132 students9 students per teacher
#16 Best Catholic Schools in the Diocese of Belleville
Our Lady of Mt. Carmel School
Parish school · Grades Pre-K–8
Serving families in Herrin since at least 2011
Herrin, IL
B+Overall grade238 students12 students per teacher
#17 Best Catholic Schools in the Diocese of Belleville
Mater Dei High School
Diocesan school · Grades 9–12
Smaller classes than 61% of Catholic schools in Illinois
Breese, IL
BOverall grade357 students12 students per teacher
#18 Best Catholic Schools in the Diocese of Belleville
Notre Dame Academy of Belleville
Parish school · Grades Pre-K–8
One of 5 Catholic schools in Belleville
Belleville, IL
BOverall grade67 students
#19 Best Catholic Schools in the Diocese of Belleville
St. Joseph's Catholic Church
Diocesan school · Grades Pre-K–8
A Catholic school in Olney
Olney, IL
BOverall grade223 students14 students per teacher
#20 Best Catholic Schools in the Diocese of Belleville
All Saints Academy
Diocesan school · Grades Pre-K–8
Growing: enrollment up 18% since 2011–12
Breese, IL
BOverall grade325 students15 students per teacher
#21 Best Catholic Schools in the Diocese of Belleville
Immaculate Conception
Diocesan school · Grades Pre-K–8
Growing: enrollment up 29% since 2011–12
Columbia, IL
B-Overall grade351 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.