Holy Trinity High School is a co-educational learning environment located centrally in Hicksville, Nassau County, New York on Long Island. Education is based on New York State Education Standards with a strong emphasis on Religious Studies as well. It is operated by the Roman Catholic Diocese of Rockville Centre. It is particularly well known for its Performing Arts Department and theatrical performances.Academic programHTHS was selected by the U.S. Department of Education as one of the outstanding high schools in the nation. It is accredited by Middle States Association of Colleges and Schools and the Board of Regents of the University of the State of New York. Holy Trinity has Regents exams in the following subject areas: Integrated Algebra, Math B, Global History and Geography, US History, English, Spanish, French, Chemistry, Biology, Earth Science, Physics.