#1 Fastest-Growing Private Schools in Lake County, IN
Indiana Horizon Academy
Islamic school · Grades Pre-K–8
Enrollment up 220% in about a decade
Crown Point, IN
A-Overall grade144 students12 students per teacher
2026 lists
Fastest-Growing Private Schools in Lake County, IN
Private schools in Lake County, IN whose enrollment has grown the most over the past decade. Top 8 of 8 schools.
#2 Fastest-Growing Private Schools in Lake County, IN
Crown Point Christian School
Christian school (nondenominational) · Grades Pre-K–8
Enrollment up 74% in about a decade
Saint John, IN
B-Overall grade837 students16 students per teacher
#3 Fastest-Growing Private Schools in Lake County, IN
Highland Christian School
Calvinist school · Grades Pre-K–8
Enrollment up 44% in about a decade
Highland, IN
B+Overall grade531 students14 students per teacher
#4 Fastest-Growing Private Schools in Lake County, IN
Aquinas Catholic Community School
Diocesan school · Grades Pre-K–8
Enrollment up 44% in about a decade
Merrillville, IN
B+Overall grade212 students17 students per teacher
#5 Fastest-Growing Private Schools in Lake County, IN
St. Casimir School
Diocesan school · Grades Pre-K–8
Enrollment up 38% in about a decade
Hammond, IN
B-Overall grade340 students19 students per teacher
#6 Fastest-Growing Private Schools in Lake County, IN
Trinity Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
Enrollment up 22% in about a decade
Crown Point, IN
AOverall grade166 students12 students per teacher
#7 Fastest-Growing Private Schools in Lake County, IN
St. John Evangelist School
Diocesan school · Grades Pre-K–8
Enrollment up 16% in about a decade
Saint John, IN
B+Overall grade371 students14 students per teacher
#8 Fastest-Growing Private Schools in Lake County, IN
Hammond Baptist High School
Baptist school · Grades Pre-K–12
Enrollment up 10% in about a decade
Schererville, IN
B-Overall grade265 students14 students per teacher
From official public records, updated October 2026.