Faithful to the tradition of Catholic education and the Holy Union Charism, Country Day School of the Holy Union strives to celebrate and educate the whole person, gifts and talents, rights and responsibilities. It firmly believes that each person is created in the image and likeness of God and attempts to create an environment where character is formed and where each student is respected and taught to respect self, others, and creation. Country Day School of the Holy Union seeks to provide students with strong academic skills and educational opportunities that will allow them to develop to their fullest potential. It strives to educate students to think for themselves within a community of wisdom and a tradition of faith.
Established in 1949, Country Day School of the Holy Union is a private, independent Catholic School serving students from pre-kindergarten through the eighth grade. Country Day School is under the sponsorship of the Holy Union Sisters. The order was founded in France in 1826 with a mission toward education. The school is situated on 16 acres of land located on Route 119 in Groton, Massachusetts.