St. Theresa's Catholic School was the school which Carmen was accepted into after she was expelled from the Allendale Preparatory School in Season 3.
Angie decided to home-school her for a while after the expulsion, but Carmen grew tired of the home-schooling and spending so much time with her, and was sent to St. Theresa's Catholic School which was her only option left.While at St. Theresa's, she met her future on-again, off-again boyfriend, Jason McNamara (played by Bryan Fisher), whom she dated for much of seasons 3 and 4. Carmen graduated in 2006 in that school.