Immaculate High School

Immaculate High School is the #1 Catholic, co-ed, day school in the State of Connecticut (, It has the highest SAT scores in the Diocese of Bridgeport.
Immaculate High School provides an outstanding return on investment -- graduates received $33.5 million in total college scholarships, in 2022, and 100% of graduates went on to post-secondary education.
Immaculate High School is the premiere, private, Catholic, co-educational school in Danbury, Connecticut serving Fairfield and Westchester counties. Immaculate specializes in college preparation through innovative courses, low student to teacher ratios and individualized counseling. An Immaculate High School education facilitates the formation of respect, responsibility and reverence and fosters the development of the whole student.
Students come from parochial, public, independent and home schools from 30+ communities in CT and NY.
Financial aid and scholarships are available. Visit for more information.

Quick Stats (2024)

  • Top Ranked CT School
  • Grades: 9-12
  • Enrollment: 384 students
  • Yearly Tuition: $17,750
  • Acceptance rate: 90%
  • Average class size: 16 students
  • Application Deadline: Nov. 15 / rolling
  • Source: Verified school update

Upcoming Events and News

Top Rankings

Immaculate High School ranks among the top 20% of private schools in Connecticut for:


School Overview

Religious Affiliation
Grades Offered
Grades 9-12
ADD/ADHD Support
Learning Difference Programs
Learning Programs Supported
Year Founded
Summer School Offered
Summer Program Details

Student Body

Total Students
384 students
Student Body Type
% Students of Color
State avg.: 30%
Students by Grade
Immaculate High School Student By Grade

Academics and Faculty

Total Classroom Teachers
63 teachers
Student : Teacher Ratio
National avg.: 13:1
% Faculty w/Advanced Degree
Average Class Size
16 students
Number of AP Courses
30 courses
List of Courses Offered
Advanced Courses
Art, Biology, Calculus, Chemistry, Computer Science, English, History, Macroeconomics, Physics, Psychology, Statistics
Average SAT score
Matriculation DataMatric. Data
Classroom Dress Code

Tuition and Acceptance Rate

Admission Deadline
Nov. 15 / rolling
Yearly Tuition Cost
Tuition Notes
Laptop fee, uniforms and other fees also apply.
Summer Program Cost Notes
Fees vary by class
Acceptance Rate
National avg.: 85%
Admissions Director
Denise Suarez



Total ExtracurricularsTotal Extra-curric.
27 extracurriculars
Club or Organization:
Brain Trust, Bridging The Gap, Campus Ministry, Cyber Patriots, Debate Club, Drama Club, Ecology Gardening Club, Inspire Choir, Key Club, Kindness Club, Math Club, Mock Trial, Model UN, Multicultural Club, Music Production Club, Nation History Honor Society, National English Honor Society, National Honor Society, National Math Honor Society, National Science Honor Society, Peer Leadership, Rosary Club, Student Ambassadors, Student Council, Tri-M Music Honor Society, Turning Pages, Writing Club

School Notes

  • Immaculate High School offers all students the chance to explore personal, spiritual and academic opportunities and fulfill their greatest potential. Immaculate High School provides a highly successful college prepatory academic program, leadership-building activities, award-winning athletics and arts (graphics arts, fine arts, theater, music) programs, over 30 extra-curricular activies and clubs, and an emphasis on community service and faith in a Catholic school setting.
  • The faculty of Immaculate encourages students to master analytical and critical thinking skills, develop empathy and creativity, cultivate effective communication skills and discover and develop their interests. They are committed to encouraging their students to practice their faith and serve their communities. Most of all, they want and encourage their students to succeed and be well-prepared for their futures. The average class size is 16 and the student-to-faculty ratio is 11:1. Go to to see for yourself all that Immaculate High School offers.
Source: Verified school update

Frequently Asked Questions

How much does Immaculate High School cost?
Immaculate High School's tuition is approximately $17,750 for private students.
What is the acceptance rate of Immaculate High School?
The acceptance rate of Immaculate High School is 90%, which is higher than the national average of 69%.
Does Immaculate High School offer a summer program?
Yes, Immaculate High School offers a summer program. Visit their summer school page for more information.
What sports does Immaculate High School offer?
Immaculate High School offers 16 interscholastic sports: Baseball, Basketball, Cheering, Cross Country, Field Hockey, Football, Golf, Ice Hockey, Lacrosse, Soccer, Softball, Swimming, Tennis, Track and Field, Volleyball and Winter Track.
What is Immaculate High School's ranking?
Immaculate High School ranks among the top 20% of private schools in Connecticut for: Largest student body, Most AP courses offered and Most extracurriculars offered.
When is the application deadline for Immaculate High School?
The application deadline for Immaculate High School is Nov. 15 / rolling (applications are due on Nov. 15 but additional applications are reviewed year-round as space permits ).

School Reviews

  5.00 out of 5  (11 reviews)
I got an excellent education. I found the school somewhat challenging. I had to study a lot maybe even more than in college. I did find the school to be a bit cliquey. If you were good at sports then you were more popular. Maybe this is the same at every high school. I just think it would have been nice if more effort was made to reach out to those who weren't the typical jock, or cheerleader type.
- Posted by
Immaculate is a wonderful place to go to school. Students are received an excellent academic education and spiritual formation during their 4 years at IHS. I was blessed to be a student there and now I am blessed to be a teacher there. The Immaculate Family is truly special. I believe Immaculate is a phenomenal place for students to learn and to thrive.
- Posted by
Both myself, my sister and my husband graduated from IHS in the early and late 80s. The education we received from there was a huge stepping stone for college. I also played basketball and softball for the Mustangs and made many lasting friendships. The faculty was engaged and supportive in any way they could. We will be considering Immaculate for our son in the future for sure!! Once a Mustang, always a Mustang!!
- Posted by
As an alumnus, I have found myself drawn back to their school after almost 50 years. My experience at Immaculate afforded me great success in qualifying for higher education. The education provided here goes way beyond classroom studies. It is the perfect environment for created a well-rounded individual. Their athletic programs are unmatched and their arts programs are world class. The school has received the highest awards in both areas every year for many years. The religious programs guide students to mature in their faith and prepare them to enter adulthood as moral, responsible individuals. My education at Immaculate has been with me through my entire life and I am currently retired. I am gratefully involved with the Alumni Association even after all these years. For me, it is still home. If you are considering a private education, you would be doing yourself a big disfavor if they do not take the time to investigate Immaculate. The women and men who lead this school are the best in the business!
- Posted by
Immaculate High School provided my children with an excellent academic foundation, including honors and AP opportunities. IHS helped them to develop leadership skills and also encouraged service opportunities beyond the standard HS requirement. At Immaculate, my children participated in a variety of enrichment activities including, sports, musical theater, and mock trial, to name a few. Because of the smaller environment, they developed close relationships with their teachers. As parents, we feel blessed that they had such a well rounded high school experience, one that prepared them to excel in college and beyond.
- Posted by
Considering sending your child to Immaculate High School? A decision you will never regret. As a family, we are completely impressed with all the offerings that the school has, but most importantly the warmth of the school community. My oldest daughter is a graduate of the class of 2020 and we could not be more proud of all of her accomplishments during her four years at IHS. She has grown in knowledge, faith, kindness, and matured into a wonderful young lady. This year our youngest daughter will be entering as a freshman and we look forward to her growth with Immaculate over the next four years. We are certain that she will be confidently prepared for her future college career plans just like her sister. Though she has not officially started, she is already being embraced by the students and staff reaching out to her personally and welcoming her. She already has a sense of belonging and extended family. We are completely satisfied with IHS and are certain you will be too.
- Posted by
Great school gave me a lot of opportunities to succeed and helped me grow as an individual. A lot of diversity and fun built into learning teachers were very engaged and looked forward to teaching.
- Posted by
I loved this school from the moment I started my freshmen year. It offered many opportunities, as well as a fresh start, given that a lot of us were coming from different places. However, the moment I started my Sophomore year, it had become extremely clicky (and limited) as to who fit where. In a school that encourages a sense of belonging, and a warm atmosphere, I found this rather strange. I came from a school that wasn't much larger, but found a tremendous difference in the sense that everything got around to everyone. Don't get me wrong, I really enjoyed my high school experience at Immaculate High School, but I also feel as though it is not for everyone.
- Posted by
Immaculate High School was a great school for me in the '80's and is the perfect school for my children today. I currently have a junior and a freshman. They love their school, their teachers and the friends they have made. It is such a welcoming atmosphere. The academics are top-notch and the school is constantly evolving to meet the needs of the 21st century. Teachers truly care about each student. The school size is PERFECT! At close to 500 students, it is large enough to offer many course, athletics, arts and service opportunities, yet small enough to feel like a close-knit community where you are never just a number. The best part is that my children are not only growing academically, but are also encouraged to live lives of character, where the school's motto of "Reverence, Respect and Responsibility" are a part of everything they do.
- Posted by
I have two daughters, Class of 2014 and Class of 2018. I love this school! Great academics, lots of extra-curricular options, but most of all a truly caring community. The motto is Respect, Reverence, Responsibility and you can see it in the interactions between students, faculty and visitors to the school. My daughter who has graduated feels that she was extremely well prepared for college.
- Posted by
Stimulating, safe environment. Students are genuinely engaged in all areas of discipline : academically, spiritually, physically.
- Posted by

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Quick Stats (2024)

  • Top Ranked CT School
  • Grades: 9-12
  • Enrollment: 384 students
  • Yearly Tuition: $17,750
  • Acceptance rate: 90%
  • Average class size: 16 students
  • Application Deadline: Nov. 15 / rolling
  • Source: Verified school update

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Did You Know?

The average private school tuition in Fairfield County, CT is $22,134 for elementary schools and $31,915 for high schools (read more about average private school tuition across the country).
The average acceptance rate in Fairfield County, CT is 72% (read more about average acceptance rates across the country).

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