Andrean High School
Diocesan school · Grades 9–12
Merrillville, IN
5959 Broadway, Merrillville, IN 46410
Overall grade: A+
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- B+Class size
- ACollege-going
- B+Years serving families
- A+Diversity
What stands out
- 98% of graduates go to four-year colleges
- Serving families in Merrillville since at least 2011
In Merrillville, Indiana, Andrean High School is a Catholic diocesan school for students from 9th grade through 12th grade. About 455 students attend, with roughly 14 students per teacher. The school is part of the Diocese of Gary. The school reports that about 98% of its graduates go on to four-year colleges. The school day runs about 7 hours, 180 days a year. Indiana has programs that can help pay tuition; ask the school whether it takes part.
At a glance
- Grades
- Grades 9–12
- Students
- 455
- Teachers
- 33.8 (full-time equivalent)
- Students per teacher
- 13.5
- Boys and girls
- Coed · 228 girls, 227 boys
- Religious affiliation
- Catholic · Diocesan school
- Diocese
- Diocese of Gary
- School day
- About 7 hours
- School year
- 180 days
- Graduates going to 4-year colleges
- About 98% (the school's estimate for the class before the survey)
- Library
- Yes
Reviews
Be the first to share what you love about Andrean High School.
How it compares
- A smaller school: fewer students than 59% of Catholic high schools in Indiana.
- Compared with 22 Catholic high schools in Indiana.
Students by survey year
Total students reported in official records since 2011–12.
Students by grade
Student body
Help paying tuition in Indiana
These state programs can help pay private school tuition. Only participating schools can accept them, so ask Andrean High School whether it takes part.
- Indiana Choice Scholarship Program · Voucher or scholarship
Questions to ask on a tour
- What is tuition, and what does it include (books, fees, uniforms, trips)?
- Do you offer financial aid, sibling discounts or payment plans?
- Do you accept ESA, voucher or tax-credit scholarship funds?
- How big are classes in my child's grade?
- What support is there for students who need extra help or more challenge?
- Is the school accredited, and by whom?
- What do a typical day and a typical week look like?
- How does the school communicate with families?
Questions about Andrean High School
What grades does Andrean High School serve?
Andrean High School serves grades 9–12.
How many students attend Andrean High School?
About 455 students, with 14 students per teacher, according to official records.
How much is tuition at Andrean High School?
Call the school to ask about tuition, financial aid and payment plans. Indiana has programs that can help pay private school tuition; ask whether the school takes part.
Official record · Updated October 2026 · Official search · Something wrong? Tell us
Other private schools nearby
Montessori Academy in the Oaks
Montessori school · Grades Pre-K–3
Serving families in Hobart since at least 2011
Hobart, IN1.2 mi
My Safari Preparatory Academy Georgia St. Campus
Early childhood program · Grades Pre-K–K
Smaller classes than 65% of preschools in Indiana
Gary, IN1.3 mi
Happy Days Child Care Center
Early childhood program · Kindergarten only
The largest preschool in Merrillville
Merrillville, IN1.4 mi
Happy Days Learning Center
Early childhood program · Kindergarten only
Small classes: about 8 students per teacher
Merrillville, IN1.4 mi
Ascension Lutheran Christian School
Lutheran (Missouri Synod) school · Grades K–5
Growing: enrollment up 33% since 2019–20
Gary, IN1.6 mi
Aquinas Catholic Community School
Diocesan school · Grades Pre-K–8
Growing: enrollment up 44% since 2011–12
Merrillville, IN2.0 mi