#1 Best Private High Schools in Lake County, IN
Andrean High School
Diocesan school · Grades 9–12
98% of graduates go to four-year colleges
Merrillville, IN
A+Overall grade455 students14 students per teacher
2026 lists
Best Private High Schools in Lake County, IN
Private high schools in Lake County, IN with the highest overall grades. Top 6 of 6 schools.
#2 Best Private High Schools in Lake County, IN
Calumet Christian School
Christian school (nondenominational) · Grades K–12
One of the most diverse private schools in Indiana
Griffith, IN
BOverall grade191 students12 students per teacher
#3 Best Private High Schools in Lake County, IN
Protestant Reformed/Heritage Christian Schools
Calvinist school · Grades K–12
Serving families in Dyer since at least 2011
Dyer, IN
BOverall grade217 students11 students per teacher
#4 Best Private High Schools in Lake County, IN
Illiana Christian High School
Calvinist school · Grades 9–12
Serving families in Dyer since at least 2011
Dyer, IN
B-Overall grade544 students16 students per teacher
#5 Best Private High Schools in Lake County, IN
Illiana Christian High School
Calvinist school · Grades 9–12
The largest Christian school in Dyer
Dyer, IN
B-Overall grade545 students14 students per teacher
#6 Best Private High Schools in Lake County, IN
Hammond Baptist High School
Baptist school · Grades Pre-K–12
The only Christian school in Schererville
Schererville, IN
B-Overall grade265 students14 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.