2026-08-04 · Catholics worldwide
Half of Christians are Catholic
Roman Catholicism is the largest single Christian communion.
Half of all Christians worldwide are Roman Catholic — about 1.4 billion people as of 2026 — making Catholicism the largest single Christian communion. The remaining half is spread across every other Christian tradition combined; none of them individually matches the Catholic Church's scale.
1 cell = 1.4 million Catholics worldwide (0.1% of global Catholics) · 1,000 cells
Context
Catholics number about 1.4 billion worldwide as of 2026 — roughly 50% of all Christians — while the remaining half is spread across every non-Catholic tradition combined.
Figures are rounded estimates drawn from the Vatican's Annuario Pontificio and Pew Research Center's Christian sub-group counts.
The even split is the point: Catholicism is the largest single Christian communion, yet Christians outside the Catholic Church collectively equal its numbers.
Annuario Pontificio / Pew Christian sub-groups, rounded.
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Credit this grid as Inagrid — https://inagrid.com/e/2026-08-04-catholics-pope