A visual overview of Christianity's three main branches, Catholic, Protestant, and Orthodox, with estimated populations.
Estimated adherents by branch (~2.5 billion total)
Catholic, 1.35B (50.1%)
Led by the Pope in Rome. Largest single Christian body.
Protestant, 0.9B (36.7%)
Diverse movement from the Reformation: Lutherans, Baptists, Methodists, Pentecostals, etc.
Orthodox, 0.26B (11.9%)
Eastern and Oriental Orthodox churches, concentrated in Eastern Europe and Middle East.
Other Christian, 0.03B (1.3%)
Includes Latter-day Saints, Jehovah's Witnesses, and independent churches.
Source: Pew Research Center, "Global Christianity," 2011.