The Catholic Conference participates in the Massachusetts Interscholastic Athletic Association (MIAA) Division I in sports competitions.
The Catholic Conference consists of 10 member institutions located primarily in Eastern Massachusetts.
The geographic domain of the conference stretches from Shrewsbury in the west to Hingham in the east and from Danvers in the north to Westwood in the south.
The Pioneers played the 2020–21 season in the Catholic Conference bubble due to the COVID-19 pandemic.
The conference has combined to win the Super 8 Hockey Tournament 22 times since its inception in 1991.