Admission to St. Joseph by-the-Sea is competitive and based primarily on the student's performance on the Test for Admission into Catholic High Schools Exam(TACHS Exam).

All applicants are required to take this standardized aptitude and achievement test. Selection is based on scores obtained on the exam.

Baptized Roman Catholic students of Staten Island (or those who will be) who have received (or those who will receive) First Communion and Confirmation and indicate Sea as their first or second choice are considered for admission.

The number of boys and girls accepted into the freshman year is based on our overall enrollment objectives. Usually, 190 boys and 190 girls are admitted.

St. Joseph by-the-Sea is not staffed to provide for IEP students with special needs.