School Details

Holy Trinity Diocesan High School

98 Cherry Lane, Hicksville, NY 11801
(516) 433-2900

(out of 10)

Private Grades 9-12 1392 students 19 students/teacher (NY avg is 13)

Test Scores by grade

About this school

Holy Trinity Diocesan High School is a private high school in Hicksville. The principal of Holy Trinity Diocesan High School is Gene Fennell, who can be contacted at 1,392 students attend Holy Trinity Diocesan High School and identify as White, non-Hispanic; Hispanic; and Asian/Pacific Islander. The student to teacher ratio at Holy Trinity Diocesan High School is 19:1. Hicksville High School is one of the nearest high schools.

Extracurricular activities


  • Band
  • Ceramics sculpture
  • Chorus
  • Computer arts
  • Dance
  • Drawing painting
  • Orchestra
  • Photography
  • Theater drama
  • Video film production

Languages Taught

  • French
  • German
  • Italian
  • Spanish


  • Badminton
  • Baseball
  • Basketball
  • Cheerleading
  • Cross country
  • Field hockey
  • Football
  • Golf
  • Gymnastics
  • Lacrosse
  • P.E. classes
  • Soccer
  • Softball
  • Swimming
  • Tennis
  • Track
  • Volleyball
  • Wrestling

Student Ethnicities

Ethnicity School District
White, non-Hispanic 71% %
Hispanic 7% %
Asian/Pacific Islander 4% %
Native Hawaiian or Other Pacific Islander 2% %
Black, non-Hispanic 18% %
Asian 1% %
Native American or Native Alaskan 0% %
Multiracial 0% %

Community ratings & reviews

  • (1 year ago)

    Holy Trinity High School is more than a high school. As a senior I can fully disclose that this single place makes high school and education the two most important and essential aspects of a teens life. Ask anyone. Holy Trinity is the foundation of creativity whether it be artistically athletically academically or religiously.I can best compare Holy Trinity to New York City; a home where sights sounds events and people constantly inspire one another. Every day a new possibility is uncovered. As an student I have fully developed my OWN personal understanding of the world we live in.I have been given the opportunity to seek gratification in MYSELF. Initially I came to Holy Trinity for its outstanding and professional theater department in hope of pursing performing arts after high school. Besides the fact that I am now going to college as a Dance major (which was my initial dream) I have realized that Holy Trinity gave me more than a future; it gave me the knowledge and confidence to pursue any ambition or intuition. Holy Trinity's amazing faculty student body and legacy is what motivates a Titan to further their dreams. There's no place I would rather be than Holy Trinity.

  • (1 year ago)

    My daughter is n 10th grade we love this school. She is very happy and is doing so well!

  • (1 year ago)

    An amazing four years at this school shaped me into who I am today and made me the driven and successful college student I now am. The community is just so supportive and unlike any other high school's. I wouldn't trade my time at Trinity for the world.

  • (1 year ago)

    " how high school should be" is the motto and the truth! So glad I had the opportunity to go there and now am sending my kids - it is certainly a big financial sacrifice but one I'm happy to make!

  • (1 year ago)

    As a graduate of Holy Trinity I was thrilled when my daughter selected Holy Trinity for her high school. As much as I loved it as a student I love it at least a million times more as a parent. When my daughter starts college in September she will have as many credits as most college sophomores thanks to Trinity's extensive college classes and AP classes. Her faith is stronger than most adults I know and when she was offered a full tuition academic scholarship from a private non-denominational college she said she would never consider attending a non-Catholic college where she would be unable to attend daily Mass as she has done as often as possible during her time at Trinity. The faculty and administration are phenomenal. Holy Trinity is so much more than a great school it is a loving family environment where a child can truly flourish.

  • (1 year ago)

    Holy Trinity Diocesan High School - I had two sons attend HT and they both had a wonderful education great experiences and memories that will last a lifetime. It helped them become the wonderful men that they are today.

  • (1 year ago)

    Fantastic!! Excellent curriculum that prepares students well for higher education the workforce and the real world! Wonderful sports theater and arts program. Something for everyone. Congrats on winning the Catholic High School Championship at Fordham! The whole school was there to cheer.

  • (1 year ago)

    I agree it is the best monetary investment I have ever made and I praise God for it everyday! Of course if you can not afford this type of private school it would be better to enroll your children in a religous education program Sunday school etc. Our family freinds have children in various Catholic High Schools throughout Nassua County with Holy Trinity being one of them and as far as we can see these young bright minds are going to many TOP UNIVERSITYS!! Many are scholars athletes playing Division 1 athletics Many have attained full scholarships but most importantly I would perfer my children to attend a school that prays daily and would not trade that for the "public" educational system that is lacking the most important ingredients in raising children love! Catholic school teacher's are there because they care! Lastly it does not matter what college your child goes to however it does matter who your child becomes what morals values purpose in life they will have will they believe in God! How they will learn to treat other people respecting parents siblings families and friends these things and more are a daily emphasis in Catholic schools.

  • (1 year ago)

    $9000 a year!!?? Trinity just isn't worth it. Local public high schools are just as good if not better academically. If your interested in the religious aspect send them to CCD at your local parish. While public schools and a few select Catholic high schools are sending their graduates to the Ivies and other top tier schools. Trinity continually sends its graduates to the likes Molloy Mount St. Mary's College and Lemoyne College. Easy safe and Catholic. Save your money for college. This is not the best place.

  • (2 years ago)

    Hands down- the best Catholic school on the island. Holy Trinity is more than a learning it's a family that values community above all else. While having reputable sports teams strong AP and honors level courses insightful teachers and a theater department that compares to none other Trinity instills valuable life lessons and Christian teachings applicable in every day life. Students regularly gain acceptances to top tier universities. Getting involved in the Trinity community is easy and beyond rewarding. The principal shows up to most every school event. I HIGHLY recommend Holy Trinity to any parent who wants their child to have a successful and enjoyable high school experience.

  • (2 years ago)

    Great school my daughter is so happy here. The teachers guidance and staff are so nice. The classes challenging and she made many friends right away. If you're thinking of sending to catholic school try this one!

  • (3 years ago)

    As a former student I couldn't recommend this school to anyone. Parents would send their kids from all over the island from districts as far as 15 miles away. Never made any sense too me. Long island has good public schools some excellent. Some students were expelled from other catholic schools in the area and trinity would accept them. This is something other catholic schools would not do including the ones they came from. A lot of kids who went there misbehaved and bullying was common. I was attacked my freshman year and they said nothing could be done because I waited three days too report. I was embarrassed that it happened and that's why I had waited. I really should have left earlier than I did and I regret my decision. Some students claimed they didn't take the catholic high school entrance exam too get in. I cannot confirm this is true but it surprised me. I would recommend parents choose another private school or just go to public school. I went too public school after and I thought the education was the same if not better in some cases. If catholic schools were a better choice at one point seems like they are not now.

  • (3 years ago)

    Renowned for offering numerous challenging AP courses to qualified students; excellent preparation for college; students bonded in family atmosphere; great principal.

  • (4 years ago)

    This school has it all Smaller classes AP programs for entry into the better universities truly dedicated teachers intelligent attitudes amazing clubs for the children impressive fields and well established sports programs. Keep up the great work! Far better than KMS in Uniondale so definitely better than other Catholic schools. Our commute is further but well worth it!

  • (4 years ago)

    holy trinity high school cannot be compared with other catholic high schools. they are literally an glorify hicksville high school. if you live in hicksville some people only use trinity cause of convenience. you should not. there discipline does not compare to the other catholic h.s.. they dont enforce them to go to mass. the students are not respectful. i have spoken to several parents and they all agree that there is no discipline. the way they dress for school sloppy and does not get them ready for college or the real world. so if your a catholic and looking for a good and decent high school make sure you check all aspects of the other schools. its your money and you want the best for your dollar trinity is one of themost expensive high schools. if youlive in hicksville and your child wants trinity you might as well go tohicksvill high school.

  • (5 years ago)

    Holy Trinity is the quintessential Catholic High School. It provides a dynamic combination of high academic standards (especially for students accepted into AP or Honors courses) and sound Christian discipline set in real-world situations (that is co-ed and diverse enrollment.) Trinity's teaching staff is second-to-none! Their dedication and expertise are imparted to each student regardless of Regents or Honors level. Honors students are encouraged to strive for Advanced Regents diplomas. Since our teachers do not prepare nor influence these comprehensive tests they teach us how to apply the course information and not just memorize it. Their devotion never waivered(even without a contract with the Diocese.) They continued to come in early and stay after school for anyone who wanted extra help. Holy Trinity is a family. HTHS is a complete Christian experience that fully prepared me for the challenges I'll have in college and thereafter.

  • (5 years ago)

    Holy Trinity offers challenging Honors courses taught by outstanding teachers who encourage and demand excellence. A/P courses further prepare qualified students for their college years. Spiritual guidance and a warm family atmosphere are part of the total Trinity experience.

  • (5 years ago)

    I was graduate many many years ago and absolutely loved my high school years. After moving away and returning to the area 4 years ago I began to re-connect through the Alumni program and now my daughter will be attending this fall. I can honestly say that the loving and nurturing environment has not changed one bit since my days. I let my daughter make her own decision - we visited Our Lady of Mercy and St. Anthony's - she was completely sold on Trinity and I know that she will have the same unbelievable experience in high school that I had. I would recommend this school to anyone that wants a nurturing warm supportive and accepting environment for their children as they prepare for college.

  • (5 years ago)

    Highly-competitive honors & A/P courses with dedicated highly-qualified encouraging teachers. Holy Trinity is not just a 'school'; it's an 'experience' that prepares young men and women to face the challenges of college. Great friendships were formed during my years at HTHS. I will forever be grateful to my Trinity family.

  • (6 years ago)

    I commend the meritorious service of HTHS teachers. After learning of Trinity's competitive Honors Program I decided to accept the challenge. That was four years ago! The studies were rigorous the teachers were demanding (but always fair and supportive) and my fellow-students were always competitive & spirited. I am proud to have become a strong Christian man who is prepared to meet the challenges that await me in college and in my adult life. Thank you to the entire Holy Trinity family.

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Overall score

(based on 49 ratings & reviews)

  • Teacher quality
  • Principal leadership
  • Parent involvement


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