The Annuarium Statisticum Ecclesiae is the Holy See's own annual statistical yearbook, compiled by the Central Office of Church Statistics from figures dioceses around the world report to Rome each year, chiefly counts of baptisms, clergy, parishes and other institutional measures. As the Church's own centralized tally of its own administrative records, it is the correct and authoritative source for what the Catholic Church itself counts and reports about its membership and structure. Its limit is that it measures sacramental record keeping, baptisms entered in parish registers, rather than an independent demographic survey of religious self identification or actual practice, so a claim about lived belief or attendance needs a different kind of source, and a national figure can also be shaped by how completely a given country's dioceses report to Rome in a given year.
Facts
Assessment
Reliability Tier1
The Annuarium Statisticum Ecclesiae is the Holy See's own annual statistical yearbook, compiled by the Central Office of Church Statistics from figures dioceses worldwide report to Rome each year, the top tier reflecting the Church's own centralized tally of its own administrative records. Its limit is that it measures sacramental record keeping rather than an independent demographic survey, so a claim about lived belief or attendance needs a different kind of source, and a national figure can be shaped by how completely a given country's dioceses report in a given year. NotesThe Holy See's own annual statistical yearbook. It counts baptisms recorded by dioceses, not self-identification, and is cited here as a self-reported figure.
Custodian
Custodian SourceYes
Custodian BodyCentral Office of Church Statistics, Secretariat of State, Holy See
Custodian BasisThe Catholic Church own annual statistical return about itself. Authoritative for what the Church counts; it is not an independent demographic study.
Citation
AuthorCentral Office of Church Statistics, Secretariat of State
PublisherLibreria Editrice Vaticana
Publication Year2025
Source TypeOfficial statistical return
Cross-Tradition Connections
Associated With
Rome, Cities This source names Rome directly: "dioceses around the world report to Rome each year, chiefly counts of baptisms, clergy, parishes and other institutional measures."
Claims Backed By This Source (15 claims)
This source backs 15 claims across the atlas. As facts: 13 well-attested. As cited relationships: 1 holds. Plus 1 entities citing it as a general reference with no single fact or relationship attached.
Disposition By Topic
- Sources, 11 claims: 10 well-attested, 1 holds.
- Denominations, 4 claims: 3 well-attested, 1 general references.
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