Today, Holy Trinity is co-educational and serves Hispanic, African American, White, and Asian students.

Holy Trinity is centrally located to the Chicago area and attracts students from more than 50 ZIP codes across the city as well as around the world, through its international program.

In fall 2018, Holy Trinity introduced a one-to-one technology plan that equips students with Chromebook touch-screen laptops.

The school also has a Resource Learning Center and tutoring program that helps develop strong study habits, effective time management, and problem-solving skills.

The school partners with a number of colleges and universities to provide academic resources to the school community, including: Benedictine University: Dual-Credit Program ·Northwestern University: Design Thinking Workshops & GoKidney Sci-High Summer Program ·Loyola University: Professional development ·University of Notre Dame: Introduction to Engineering Program, Alliance for Catholic Education ·Smith College: Summer Science and Engineering Program ·Illinois Institute of Technology: NxtGen High School Summer Program ·Malcolm X College: Pre-College Health Science Scholars Summer Program (PCHSS) The school has over 30 clubs students can join, including Student Government, Pet Club, the Black Student Union, Poetry Club, and the Robotics Team.