Title: Spain
Content:   Roman Catholicism, which has a long history in Spain, remains the dominant religion. Although it no longer has official status by law, in all public schools in Spain students have to choose either a religion or ethics class. Catholicism is the religion most commonly taught, although the teaching of Islam, Judaism, and evangelical Christianity is also recognised in law. According to a 2020 study by the Spanish Centre for Sociological Research, about 61% of Spaniards self-identify as Catholics, 3% other faiths, and about 35% identify with no religion. Most Spaniards do not participate regularly in religious services. A 2019 study shows that of 
Title: Religion in Spain
Content:  those who go several times a week, 4.3%. There are minorities of adherents to other Christian and non-Christian religions. The Pew Research Center ranked Spain as the 16th out of 34 European countries in levels of religiosity. There is no official religion and religious freedom is protected: the Spanish Constitution of 1978 abolished Catholicism as the official religion of the state, while recognizing the role it plays in Spanish society. Judaism and Christianism were introduced in the Iberian Peninsula in Roman times. Islam was introduced in the Iberian Peninsula after the Muslim conquest in the 8th century. In the late 15th 
Title: Religion in Spain
Content:  Besides various varieties of Christianity, Islam, Judaism and the non-religious, Spain also has small groups of Hindus, Buddhists, Pagans, Taoists, and Bahá'ís.
Title: Demographics of Spain
Content:  26.4% as non-believers or atheists, and 2.6% other religions according to the official Spanish Center for Sociological Research. Among believers, 59% assert they almost never go to any religious service, by contrast, 16.3% attend one or more religious service almost every week. A study made by the Union of Islamic Communities of Spain demonstrated that there were about 1,700,000 inhabitants of Muslim background living in Spain, accounting for 3–4% of the total population of Spain. The vast majority was composed of immigrants and descendants originating from Morocco and other African countries. More than 514,000 (30%) of them had Spanish nationality.
Title: Religion in Spain
Content:  Religion in Spain is characterized by the predominance of the Catholic Christianity with high levels of secularization. Additionally, Catholic Spaniards usually refer to themselves as either "practicing" or "non-practicing" depending on their level of religiosity, with strongly practicing Catholics accounting for just 20% of the population. However, many cultural aspects of Catholicism remain strong among the population, for instance religious festivals. According to a 2021 survey, those who go to church several times a year are 17.3% of the total population; those who go several times a month, 9.3%; those who go every Sunday and all holy days of obligation, 14.9%; 
Title: Outline of Spain
Content: Irreligion in Spain ; Religion in Spain ; Monasteries in Spain ; Religions in Spain ; Bahá'í Faith in Spain ; Christianity in Spain ; Catholicism in Spain ; Protestantism in Spain ; Hinduism in Spain ; Islam in Spain ; Ahmadiyya in Spain ; Judaism in Spain ; Neopaganism in Spain ; Odinist Community of Spain — Ásatrú 
Title: Religion in Spain
Content: 59% of Spaniards responded that "they believe there is a God." ; 21% answered that "they believe there is some sort of spirit or life force". ; 18% answered that "they do not believe there is any sort of spirit, God, or life force." While Catholicism is still the largest religion in Spain, most Spaniards—and especially the younger—choose not to follow the Catholic teachings in morals, politics or sexuality, and do not attend Mass regularly. Irreligiosity, including agnosticism and atheism, enjoys social prestige in line with the general Western European secularization. Culture wars in Spain are far more related to politics than religion, and the huge unpopularity of typically religion-related issues like creationism 
Title: Islam in Spain
Content:  In Spain, Islam is considered a minority though “deep-rooted” religion together with Judaism, the Evangelic Church, the Church of Jesus Christ of Latter-day Saints, the Jehovah's Witnesses, Buddhism and the Eastern Orthodox Church. In this sense, the Spanish state established a legal framework for the accommodation of those remarkable religions within the legal framework of cooperative church-state relations. Until now, just the Jewish, the Evangelic and the Muslim communities have signed a formal Agreement with the state.
Title: Culture of Spain
Content:   About 68% of Spaniards identify as belonging to the Roman Catholic religion; 2% identify with another religious faith, and about 27% as non-religious.
Title: Religion in Spain
Content:  early 16th century, Jews and Muslims were forced to choose between conversion or expulsion. The Spanish Empire spread it to the Philippine islands and Latin America, which are now predominantly Catholic countries. However, since the end of the Francoist dictatorship practical secularization has grown strongly. Only 3% of Spaniards consider religion as one of their three most important values, lower than the 5% European average. According to the Spanish Center for Sociological Research, 57.4% of Spanish citizens self-identify as Catholics, (39% define themselves as not practising, while 18.4% as practising), 2.5% as followers of other faiths (including Islam, Protestant Christianity, Buddhism 

Question: What is the religion of Spain?
Answer: non-denominational.
nondenominational.