Christianity in San Marino is deeply rooted, with over 90% of the population identifying as Christian, primarily Roman Catholic. Founded in 301 AD by Saint Marinus fleeing persecution, the nation maintains strong cultural ties to Catholicism, which serves as its heritage, although active practice is often nominal, and secularism is increasing.
Key Aspects of Christianity in San Marino:
- Demographics: Roughly 91.5% of the population is Christian (mostly Catholic), with small percentages of Protestants, Orthodox Christians, and others.
- Catholic Dominance: Catholicism is not the official state religion, but it is deeply embedded in culture. The country has 12 parishes and is entirely within the Diocese of San Marino-Montefeltro.
- Religious Freedom: The constitution guarantees freedom of worship, though religious education is provided in state schools.
- Cultural Significance: Major state events, such as the inauguration of the Captains-Regent (heads of state), are held in the Basilica di San Marino.
- History: The republic was founded as a Christian community on Mount Titano by a stonemason, Saint Marinus.
While Catholicism dominates, other religious groups present include Jehovah’s Witnesses, the Baha’i Faith, Islam, Judaism, and the Waldensian Church.

Links for further overview of San Marino:
