Immaculate High School
Diocesan school · Grades 9–12
Danbury, CT
73 Southern Blvd, Danbury, CT 68107
Overall grade: A+
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- B+Class size
- ACollege-going
- A-Years serving families
- ADiversity
What stands out
- The smallest classes of any Catholic school in Danbury
- The largest Catholic school in Danbury
- 99% of graduates go to four-year colleges
- Serving families in Danbury since at least 2011
In Danbury, Connecticut, Immaculate High School is a Catholic diocesan school for students from 9th grade through 12th grade. About 375 students attend, with roughly 12 students per teacher. Its enrollment has held steady since 2011–12. The school is part of the Diocese of Bridgeport. The school reports that about 99% of its graduates go on to four-year colleges. The school day runs about 6.5 hours, 180 days a year.
At a glance
- Grades
- Grades 9–12
- Students
- 375
- Teachers
- 30.8 (full-time equivalent)
- Students per teacher
- 12.2
- Boys and girls
- Coed · 210 girls, 165 boys
- Religious affiliation
- Catholic · Diocesan school
- Diocese
- Diocese of Bridgeport
- School day
- About 6.5 hours
- School year
- 180 days
- Graduates going to 4-year colleges
- About 99% (the school's estimate for the class before the survey)
Reviews
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How it compares
- A smaller school: fewer students than 65% of Catholic high schools in Connecticut.
- Compared with 17 Catholic high schools in Connecticut.
Students by survey year
Total students reported in official records since 2011–12.
Students by grade
Student body
Member of
- National Catholic Educational Association
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 Immaculate High School
What grades does Immaculate High School serve?
Immaculate High School serves grades 9–12.
How many students attend Immaculate High School?
About 375 students, with 12 students per teacher, according to official records.
How much is tuition at Immaculate High School?
Call the school to ask about tuition, financial aid and payment plans.
Official record · Updated October 2026 · Official search · Something wrong? Tell us
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