In 2024, ***** was the religion followed by the largest group of foreigners living in Italy, with almost ** percent of the share. ******************* were ** percent of the total immigrant population, ahead of ********* with ** percent. About *** percent of the foreign population in Italy did not have any religious affiliation.

Every year, the number of Italian believers attending religious services becomes lower and lower. In 2023, the number of people attending places of worship at least once per week dropped below ten million individuals for the first time since at least 2001, seven million worshipers less than in 2013. However, figures increased to 10.2 million in 2024 compared to 2023. In 2020, the most prayerful were the citizens aged over 75 years, whereas the lowest number of individuals attending religious services at least once a week was recorded in the age group between 18 and 19 years. Religious affiliation of Italians Although the dominant religion in Italy is Catholicism, Italian citizens also belong to other religious minorities. In 2020, the largest share of individuals not affiliated to the Roman Catholic Church were Muslims, followed by Jehovah’s Witnesses and Protestants. Reasons to leave religion When asked about the reason they left the religion, 64 percent of the Italian respondents stated that they disagreed with their religion’s position on social issues. Another 60 percent of the interviewees were unhappy about scandals involving religious institutions, whereas six percent left the religion because they married someone outside the faith.

This survey examines a variety of religious and non-religious topics in Italy. Religious topics include: morality of behaviors (abortion, theft, divorce, homosexuality, etc.), religious beliefs, the meaning of life, religious experiences, participation in religious rituals, views concerning and participation in sacraments, moral issues surrounding pregnancy, the role of the Catholic Church in society, obstacles to becoming clergy or a monastic, and belief in paranormal phenomena. Other topics include views on Italy's politics and economy, political party, life satisfaction, use of leisure time, geographic region, and demographic characteristics.

In 2024, around *** million Muslims lived in Italy. More than a quarter were ******** citizens, at ******* people, ahead of ******* Albanians and ******* Bangladeshis. ***** is the first most common religion of foreigners nationwide. The second-largest religion among immigrants living in Italy is the Christian Orthodox one, considering the large Romanian community residing in the country.

In 2020, Islam had the largest share of adherents among religious minorities in Italy. Around 22 percent of worshippers not belonging to the Roman Catholics were Muslims. Other large religious minorities were Jehovah's Witnesses, Protestants, and Orthodoxes.

The figure shows the current religious adherence among Italians in 2014, by age. According to the survey, the percentage of the individuals who identified themselves as Catholics increased with age, from ** percent to ** percent among individuals over 55 years old.

In 2023, Muslims were the largest religious minority among Italian citizens, with around 566,000 Italians following Islam. Moreover, around 445,000 Italian citizens were Orthodox Christians.

People with upper secondary education represented the largest group of people never attending religious services in Italy. As of 2020, about 6.1 million people with an upper secondary education did not attend any church in the last 12 months. This corresponds to around 32 percent of the Italian population with a high school diploma.

Results of official censuses of the single countries.

This statistic displays the reasons to leave a religion in Italy in 2017. When respondents in Italy who were raised within a religion were asked why they left it, ** percent of the participants stated that they had gradually drifted away from religion. No longer believing in the religion's teachings was cited by ** percent of the respondents. In contrast, only *** percent said to have left their religion to marry someone from outside their own religion.

The statistic shows the share of Italian citizens belonging to Protestantism in Italy in 2020, by denomination. According to the data, the Pentecostal Church had the largest share of adherents among Protestants, with 65.4 percent of the worshippers.

The statistic shows the religious adherence of foreigners in Italy in 2017 (in ******), by region. According to data, Lombardy was the region with the highest number of Muslims (*** thousands) and of Christian Catholics (*** thousands).

People with elementary education or no education made up the most numerous group of people attending religious services at least once a week in Italy. As of 2020, about 4.7 million people belonged to this group, which equals to around 30 percent of the total population with a low education. On the contrary, people with university education represented the smallest group of people going to church at least once a week.

This statistic depicts the opinion of Italians on the god's gender, in 2018. According to data, roughly ****** of the respondents was of the opinion that god has no "human gender", whereas only *** percent believed that god was a woman.

In Italy, more than ** percent of all the prisoners in 2016 were Catholics. Moreover, **** percent of inmates declared themselves as non-believers or did not declare their religious affiliation. Only **** percent of the prisoners in Italy belong to Jehovah's witnesses.

This statistic displays the belief in God in Italy in 2017. According to data, 21 percent of the respondents participating in this survey said that they do not believe in God. On the other hand, 26 percent of the participants stated to be absolutely certain that God exists.

Between 2010 and 2019, the number of religious marriages in Italy experienced a decrease. On the other hand, civil marriages increased, reaching in 2019 approximately 96.8 thousand.

The region registering the largest amount of marriages was Lombardy, in the North of Italy, where a total of 26 thousand marriages was recorded in 2019.

In 2023, Pentecostalism was the largest protestant religious denomination among Italian citizens, with about 250,000 worshipers. Moreover, Lutherans, Calvinists, and other historical protestant denominations were the second-largest group, with 61,000 believers.

According to 2024 estimates, the Basilica of Saint Peter in the Vatican City receives on average around ** million visitors per year. This made it the most visited religious site in Italy among the selected destinations as of that year. The Sanctuary of Saint Pio of Pietrelcina in the town of San Giovanni Rotondo in Apulia followed in the ranking, with an estimated *** million annual visitors.

The figure shows the opinion on the atheism of the President of the Republic in Italy in 2014. According to the survey, ** percent of Catholic believers would be indifferent to an atheist President of the Republic, and only * percent would be definitely against it.