The principal source of the information on the saints and blesseds is Index ac Status Causarum (1999), by the Congregation of the Causes of Saints. Information on saints and blessed proclaimed after the year 1999 are compiled from Notitiae and Vatican Information Service. Additional information is compiled from various sources.

The lists of saints and blesseds have been ensured to be complete. The counts should be accurate. (N.B. The counts given by Vatican Information Service are inaccurate.)