The religious composition of Italy today is predominantly Christian, accounting for roughly 74–80% of the population, of whom about 70–75% identify as Roman Catholic and around 3–5% belong to other Christian traditions varying from Orthodox, Protestant, Jehovah’s Witnesses, and many other churches. Approximately 20–23% of Italians are religiously unaffiliated, identifying as atheist, agnostic, or having no religion, while Muslims make up about 3–4% and followers of other religions—including Judaism, Buddhism, Hinduism, and Sikhism—collectively represent about 1–2%. Although Catholicism remains culturally influential, regular church attendance is significantly lower than nominal affiliation suggests, and recent immigration has contributed to growth in minority religions. Italy has no official state religion despite its historically strong Catholic heritage.