Filipinos make up the majority, or about 60%, of the congregation at Blessed John XXIII Parish. For many years, the Filipino Chaplaincy of the Archdiocese of Toronto was housed at the church. Mass was held every Sunday in Tagalog, Simbang Gabi masses were held every year and devotions to Sto. Nino and the Black Nazarene were held while the Filipino Chaplaincy was active at Blessed John XXIII Parish. The Filipino Chaplaincy left the parish in the August 2008 for Our Lady of Assumption Parish in the Bathurst Street area. The school adjacent to the parish, Blessed John XXIII Catholic School, is also attended by predominantly Filipino students.