#1 Private Schools with the Smallest Classes in Belleville, IL
Governor French Academy
Independent school · Grades Pre-K–12
6.6 students per teacher
Belleville, IL
AOverall grade73 students7 students per teacher
2026 lists
Private Schools with the Smallest Classes in Belleville, IL
Private schools in Belleville, IL with the fewest students per teacher (not counting preschools and special education schools). Top 8 of 8 schools.
#2 Private Schools with the Smallest Classes in Belleville, IL
Blessed Sacrament School
Parish school · Grades Pre-K–8
9.9 students per teacher
Belleville, IL
A+Overall grade142 students10 students per teacher
#3 Private Schools with the Smallest Classes in Belleville, IL
Asp2 STEAM Academy
Alternative school · Grades Pre-K–3
10 students per teacher
Belleville, IL
B+Overall grade40 students10 students per teacher
#4 Private Schools with the Smallest Classes in Belleville, IL
St. Teresa Catholic School
Diocesan school · Grades Pre-K–8
11.4 students per teacher
Belleville, IL
AOverall grade153 students11 students per teacher
#5 Private Schools with the Smallest Classes in Belleville, IL
Our Lady Queen of Peace School
Parish school · Grades Pre-K–8
12.2 students per teacher
Belleville, IL
A+Overall grade139 students12 students per teacher
#6 Private Schools with the Smallest Classes in Belleville, IL
Zion Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
13.9 students per teacher
Belleville, IL
BOverall grade256 students14 students per teacher
#7 Private Schools with the Smallest Classes in Belleville, IL
Althoff Catholic High School
Diocesan school · Grades 9–12
15 students per teacher
Belleville, IL
AOverall grade335 students15 students per teacher
#8 Private Schools with the Smallest Classes in Belleville, IL
Notre Dame Academy of Belleville
Parish school · Grades Pre-K–8
67 students per teacher
Belleville, IL
BOverall grade67 students
From official public records, updated October 2026.