Coláiste Chill Mhantáin opened its doors for the first time in September 2011 with a population of 700 students. This school in an amalgamation of two schools De La Salle College, Wicklow and Abbey Community College, Wicklow.

The cornerstone of Coláiste Chill Mhantáin is a belief in working in partnership with students, teachers and parents. It is this partnership which will enables students to achieve success. Coláiste Chill Mhantáin is a dynamic, caring school which expects high standards from students and teachers. The aim is to provide a warm friendly environment in which young people can be happy and enjoy a purposeful, well ordered programme of studies and experiences which are relevant and rewarding to adult life.