#1 Largest Private Schools in Peoria County, IL
Peoria Christian School
Christian school (nondenominational) · Grades Pre-K–12
576 students
Peoria, IL
B-Overall grade576 students12 students per teacher
2026 lists
Largest Private Schools in Peoria County, IL
The private schools in Peoria County, IL with the most students. Top 21 of 21 schools.
#2 Largest Private Schools in Peoria County, IL
Peoria Notre Dame High School
Diocesan school · Grades 9–12
480 students
Peoria, IL
B+Overall grade480 students12 students per teacher
#3 Largest Private Schools in Peoria County, IL
St. Philomena School
Parish school · Grades Pre-K–8
424 students
Peoria, IL
BOverall grade424 students14 students per teacher
#4 Largest Private Schools in Peoria County, IL
St. Jude Catholic School
Parish school · Grades Pre-K–8
243 students
Peoria, IL
BOverall grade243 students14 students per teacher
#5 Largest Private Schools in Peoria County, IL
St. Thomas the Apostle School
Diocesan school · Grades Pre-K–8
213 students
Peoria Heights, IL
A+Overall grade213 students12 students per teacher
#6 Largest Private Schools in Peoria County, IL
St. Vincent De Paul Catholic School
Diocesan school · Grades Pre-K–8
196 students
Peoria, IL
AOverall grade196 students13 students per teacher
#7 Largest Private Schools in Peoria County, IL
Daarul Uloom Islamic School
Islamic school · Grades Pre-K–12
182 students
Peoria, IL
BOverall grade182 students7 students per teacher
#8 Largest Private Schools in Peoria County, IL
Christ Lutheran School
Lutheran (Missouri Synod) school · Grades K–8
171 students
Peoria, IL
B-Overall grade171 students16 students per teacher
#9 Largest Private Schools in Peoria County, IL
Concordia Lutheran School
Lutheran (Missouri Synod) school · Grades K–8
160 students
Peoria, IL
BOverall grade160 students13 students per teacher
#10 Largest Private Schools in Peoria County, IL
St. Mark School
Diocesan school · Grades Pre-K–8
153 students
Peoria, IL
A+Overall grade153 students13 students per teacher
#11 Largest Private Schools in Peoria County, IL
Aletheia School
Christian school (nondenominational) · Grades K–10
132 students
Peoria, IL
BOverall grade132 students15 students per teacher
#12 Largest Private Schools in Peoria County, IL
Peoria Academy
Independent school · Grades Pre-K–8
110 students
Peoria, IL
B+Overall grade110 students9 students per teacher
#13 Largest Private Schools in Peoria County, IL
Holy Family Parish School
Diocesan school · Grades Pre-K–8
97 students
Peoria, IL
A+Overall grade97 students7 students per teacher
#14 Largest Private Schools in Peoria County, IL
South Side Christian Academy
Christian school (nondenominational) · Grades K–7
96 students
Peoria, IL
B+Overall grade96 students8 students per teacher
#15 Largest Private Schools in Peoria County, IL
St. Edward School
Diocesan school · Grades Pre-K–8
69 students
Chillicothe, IL
A+Overall grade69 students9 students per teacher
#16 Largest Private Schools in Peoria County, IL
St. Marys of Kickapoo
Parish school · Grades Pre-K–8
55 students
Edwards, IL
AOverall grade55 students7 students per teacher
#17 Largest Private Schools in Peoria County, IL
High Road School of Peoria
Special education school · Grades 1–12
42 students
Peoria, IL
B+Overall grade42 students8 students per teacher
#18 Largest Private Schools in Peoria County, IL
Montessori School of Peoria
Montessori school · Grades Pre-K–6
34 students
Peoria Heights, IL
A-Overall grade34 students5 students per teacher
#19 Largest Private Schools in Peoria County, IL
Calvary Baptist Academy
Baptist school · Grades Pre-K–12
30 students
Chillicothe, IL
AOverall grade30 students4 students per teacher
#20 Largest Private Schools in Peoria County, IL
El Vista Baptist Academy
Baptist school · Grades Pre-K–10
30 students
Peoria, IL
AOverall grade30 students8 students per teacher
#21 Largest Private Schools in Peoria County, IL
New Life Christian Academy
Pentecostal school · Grades 4–12
24 students
Peoria, IL
AOverall grade24 students6 students per teacher
From official public records, updated October 2026.