#1 Largest Private Schools in Jefferson City, MO
Helias Catholic High School
Diocesan school · Grades 9–12
680 students
Jefferson City, MO
B-Overall grade680 students19 students per teacher
2026 lists
Largest Private Schools in Jefferson City, MO
The private schools in Jefferson City, MO with the most students. Top 10 of 10 schools.
#2 Largest Private Schools in Jefferson City, MO
St. Peter Catholic School
Diocesan school · Grades Pre-K–8
435 students
Jefferson City, MO
B+Overall grade435 students11 students per teacher
#3 Largest Private Schools in Jefferson City, MO
Immaculate Conception School
Diocesan school · Grades Pre-K–8
281 students
Jefferson City, MO
A-Overall grade281 students11 students per teacher
#4 Largest Private Schools in Jefferson City, MO
Trinity Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
280 students
Jefferson City, MO
B-Overall grade280 students12 students per teacher
#5 Largest Private Schools in Jefferson City, MO
St. Martin Catholic School
Parish school · Grades Pre-K–8
165 students
Jefferson City, MO
B+Overall grade165 students11 students per teacher
#6 Largest Private Schools in Jefferson City, MO
River Oak Christian Academy
Christian school (nondenominational) · Grades Pre-K–8
151 students
Jefferson City, MO
BOverall grade151 students11 students per teacher
#7 Largest Private Schools in Jefferson City, MO
St. Stanislaus School
Diocesan school · Grades Pre-K–8
145 students
Jefferson City, MO
A-Overall grade145 students10 students per teacher
#8 Largest Private Schools in Jefferson City, MO
Lighthouse Preparatory Academy
Christian school (nondenominational) · Grades K–12
140 students
Jefferson City, MO
B-Overall grade140 students19 students per teacher
#9 Largest Private Schools in Jefferson City, MO
Calvary Lutheran High School
Lutheran (Missouri Synod) school · Grades 9–12
98 students
Jefferson City, MO
BOverall grade98 students11 students per teacher
#10 Largest Private Schools in Jefferson City, MO
Immanuel Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
77 students
Jefferson City, MO
BOverall grade77 students13 students per teacher
From official public records, updated October 2026.