#1 Best Private Schools in Jefferson County, MO
St. Rose of Lima School
Independent Catholic school · Grades Pre-K–8
Smaller classes than 70% of Catholic schools in Missouri
De Soto, MO
B+Overall grade95 students10 students per teacher
2026 lists
Best Private Schools in Jefferson County, MO
Private schools in Jefferson County, MO with the highest overall grades. Top 6 of 6 schools.
#2 Best Private Schools in Jefferson County, MO
St. Pius X Catholic High School
Diocesan school · Grades 6–8
Serving families in Festus since at least 2011
Festus, MO
BOverall grade154 students13 students per teacher
#3 Best Private Schools in Jefferson County, MO
Our Lady Catholic School
Parish school · Grades Pre-K–8
One of 2 Catholic schools in Festus
Festus, MO
BOverall grade181 students12 students per teacher
#4 Best Private Schools in Jefferson County, MO
Holy Child Catholic School
Parish school · Grades Pre-K–8
Growing: enrollment up 17% since 2011–12
Arnold, MO
BOverall grade191 students14 students per teacher
#5 Best Private Schools in Jefferson County, MO
St. Joseph Catholic School
Diocesan school · Grades Pre-K–8
Growing: enrollment up 20% since 2011–12
Imperial, MO
BOverall grade330 students13 students per teacher
#6 Best Private Schools in Jefferson County, MO
St. Johns Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
Growing: enrollment up 54% since 2011–12
Arnold, MO
BOverall grade173 students13 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.