#1 Largest Private Schools in Madison County, IL
Maryville Christian School
Baptist school · Grades K–12
590 students
Maryville, IL
B-Overall grade590 students13 students per teacher
2026 lists
Largest Private Schools in Madison County, IL
The private schools in Madison County, IL with the most students. Top 25 of 25 schools.
#2 Largest Private Schools in Madison County, IL
Marquette Catholic High School
Diocesan school · Grades 9–12
371 students
Alton, IL
B+Overall grade371 students
#3 Largest Private Schools in Madison County, IL
Father McGivney Catholic H S
Diocesan school · Grades 9–12
305 students
Glen Carbon, IL
BOverall grade305 students14 students per teacher
#4 Largest Private Schools in Madison County, IL
Good Shepherd Lutheran
Lutheran (Missouri Synod) school · Grades Pre-K–8
263 students
Collinsville, IL
BOverall grade263 students11 students per teacher
#5 Largest Private Schools in Madison County, IL
Evangelical School
Religious school · Grades Pre-K–8
243 students
Godfrey, IL
B+Overall grade243 students15 students per teacher
#6 Largest Private Schools in Madison County, IL
St. Boniface Catholic School
Parish school · Grades Pre-K–8
233 students
Edwardsville, IL
B-Overall grade233 students17 students per teacher
#7 Largest Private Schools in Madison County, IL
Trinity Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
211 students
Edwardsville, IL
B-Overall grade211 students14 students per teacher
#8 Largest Private Schools in Madison County, IL
St. Ambrose Catholic School
Parish school · Grades Pre-K–8
192 students
Godfrey, IL
A+Overall grade192 students8 students per teacher
#9 Largest Private Schools in Madison County, IL
St. Marys School
Diocesan school · Grades Pre-K–8
187 students
Edwardsville, IL
B-Overall grade187 students17 students per teacher
#10 Largest Private Schools in Madison County, IL
St. Paul Catholic School
Parish school · Grades Pre-K–8
181 students
Highland, IL
B+Overall grade181 students12 students per teacher
#11 Largest Private Schools in Madison County, IL
Zion Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
167 students
Bethalto, IL
B+Overall grade167 students10 students per teacher
#12 Largest Private Schools in Madison County, IL
St. Mary School
Diocesan school · Grades Pre-K–5
166 students
Alton, IL
B+Overall grade166 students13 students per teacher
#13 Largest Private Schools in Madison County, IL
Holy Cross Lutheran Church & School
Lutheran (Missouri Synod) school · Grades Pre-K–8
157 students
Collinsville, IL
B-Overall grade157 students17 students per teacher
#14 Largest Private Schools in Madison County, IL
St. Elizabeth Elementary School
Diocesan school · Grades Pre-K–8
140 students
Granite City, IL
AOverall grade140 students12 students per teacher
#15 Largest Private Schools in Madison County, IL
SS Peter & Paul School
Parish school · Grades Pre-K–8
136 students
Collinsville, IL
A+Overall grade136 students11 students per teacher
#16 Largest Private Schools in Madison County, IL
Holy Family Catholic School
Diocesan school · Grades Pre-K–8
129 students
Granite City, IL
B+Overall grade129 students10 students per teacher
#17 Largest Private Schools in Madison County, IL
Rivers of Life Christian School
Christian school (nondenominational) · Grades Pre-K–12
119 students
Granite City, IL
B+Overall grade119 students11 students per teacher
#18 Largest Private Schools in Madison County, IL
Mississippi Valley Christian School
Baptist school · Grades Pre-K–12
83 students
Alton, IL
A-Overall grade83 students9 students per teacher
#19 Largest Private Schools in Madison County, IL
Our Lady Queen of Peace School
Parish school · Grades Pre-K–7
80 students
Bethalto, IL
AOverall grade80 students10 students per teacher
#20 Largest Private Schools in Madison County, IL
Montessori Childrens House
Montessori school · Grades Pre-K–7
63 students
Godfrey, IL
B+Overall grade63 students5 students per teacher
#21 Largest Private Schools in Madison County, IL
Coordinated Youth & Human Services
Special education school · Grades 2–12
54 students
Granite City, IL
A-Overall grade54 students5 students per teacher
#22 Largest Private Schools in Madison County, IL
William M Bedell Area Resource Center
Special education school · Grades Pre-K–12
42 students
Wood River, IL
A-Overall grade42 students6 students per teacher
#23 Largest Private Schools in Madison County, IL
Center for Children to Heal and Achieve (CCHA)
Special education school · Grades K–12
34 students
Alton, IL
A-Overall grade34 students6 students per teacher
#24 Largest Private Schools in Madison County, IL
Metro East Montessori School
Montessori school · Grades Pre-K–6
29 students
Granite City, IL
B+Overall grade29 students15 students per teacher
From official public records, updated October 2026.