It is a composite high school and one of the largest in Calgary , serving just over 1800 students in the communities of south Calgary , Alberta .
Bishop Grandin High School is operated by the Calgary Catholic School District .
Bishop Grandin High School is a composite Bishop Grandin High School   and one of the largest in Calgary , serving just over 1800 students in the communities of south Calgary , Alberta .
Bishop Grandin High School is operated by the Calgary Catholic School District .