Peru operates under formal religious pluralism since the 1979 Constitution removed Roman Catholicism as the state religion, but the 2017 census recorded 76 percent of the population identifying as Catholic, 14.1 percent as Evangelical Protestant, 5.1 percent as non-religious, and smaller percentages across other faiths. The Conferencia Episcopal Peruana oversees 45 dioceses and 7 archdioceses across the country. Catholicism arrived with Francisco Pizarro in 1532 and became the institutional religion of the Viceroyalty of Peru in 1542, enforced through the encomienda system and later the reducción policy that concentrated indigenous populations around mission churches. The Archbishop of Lima held the title Primate of Peru from 1546 and maintained ecclesiastical authority over territories extending from Panama to Chile until the late colonial period. Religious orders operated 23 universities during the colonial period, with Universidad Nacional Mayor de San Marcos founded in 1551 as the oldest continuously operating university in the Americas. Church construction consumed approximately 40 percent of colonial tax revenue in Lima between 1580 and 1650 according to municipal records. The Inquisition tribunal established in Lima in 1570 prosecuted 3,000 cases before its abolition in 1820, though indigenous populations remained technically outside its jurisdiction after a 1575 royal decree.
Contemporary Catholic practice exhibits regional variation reflecting geographic and ethnic distinctions. Coastal urban centers including Lima, Trujillo, and Arequipa maintain higher rates of weekly Mass attendance, estimated at 18 to 22 percent of self-identified Catholics in 2019 surveys conducted by the Instituto de Estudios Peruanos. Andean departments including Cusco, Ayacucho, Puno, and Huancayo demonstrate lower formal Mass participation at 8 to 12 percent but higher engagement with processions, pilgrimages, and festival masses tied to agricultural cycles and patron saints. The Amazon departments of Loreto, Ucayali, and Madre de Dios show Catholic identification rates between 60 and 65 percent with significant Evangelical Protestant presence, particularly among indigenous communities contacted after 1950. Lima's historic center contains 40 colonial-era Catholic churches, with the Cathedral of Lima occupying the main plaza site since 1535, rebuilt in current form after the 1746 earthquake. Arequipa's historic center, built primarily from white volcanic sillar stone, includes the Santa Catalina Monastery covering 20,426 square meters, functioning as a closed Dominican convent from 1580 until partial public opening in 1970. Cusco's Qorikancha served as the principal Inca temple of the sun before becoming the foundation for the Santo Domingo Convent in 1534, with original Inca stone walls supporting colonial structures visible throughout the complex.
Syncretic religious practice blends Catholic liturgy with pre-Hispanic Andean cosmology across rural highland regions. The concept of Pachamama, the earth mother deity central to Inca and pre-Inca belief systems, receives offerings called pagos during agricultural ceremonies, construction projects, and mountain crossings. These rituals typically involve burning coca leaves, animal fat, corn, and alcohol while requesting permission or protection from the earth and mountain spirits called apus. The ceremony occurs before Catholic masses during major festivals, particularly Corpus Christi in Cusco and Qoyllur Rit'i pilgrimage at Sinakara glacier between May and June. Qoyllur Rit'i attracts 10,000 to 15,000 pilgrims annually according to regional tourism office counts, combining Catholic devotion to Señor de Qoyllur Rit'i with offerings to mountain apus and overnight vigils at 4,600 meters elevation. The pilgrimage culminates with ukukus, ritual dancers in bear costumes, ascending above 5,000 meters to retrieve ice blocks once carried back to communities, though environmental concerns have reduced this practice since 2010. The Catholic Church in Cusco department maintains official recognition of these syncretic practices through joint ceremonies where priests celebrate Mass immediately following traditional pago rituals.
Evangelical Protestantism expanded significantly after 1980, correlating with internal conflict during the Shining Path insurgency and subsequent migration from rural to urban areas. The Asamblea de Dios, Iglesia Evangélica Peruana, and Movimiento Misionero Mundial constitute the three largest Evangelical denominations, collectively representing approximately 60 percent of Protestant adherents according to 2017 census data. Pentecostal and neo-Pentecostal churches proliferated in Lima's peripheral districts including San Juan de Lurigancho, Villa El Salvador, and Comas, where 18 to 24 percent of residents identified as Evangelical in detailed district-level census returns. These congregations typically meet in converted storefronts or purpose-built structures seating 200 to 800 people, with services featuring extended worship music sessions, healing prayers, and testimonial preaching. The Agua Viva megachurch network operates 47 locations across Lima with the main Villa El Salvador campus seating 3,500 people, founded in 1982 by pastor Alberto Santana. Evangelical growth appears concentrated among urban working-class populations and indigenous groups in the Amazon region, where the Summer Institute of Linguistics worked from 1946 to 1976 translating the New Testament into 37 indigenous languages including Shipibo, Asháninka, and Aguaruna.
Daily religious practice among practicing Catholics typically includes morning prayers at home altars displaying images of saints, crucifixes, and family photographs of deceased relatives. Many households maintain these retablos or altar corners with fresh flowers, candles, and small offerings refreshed weekly or before significant family events. The rosary remains a common evening practice, particularly among women over 50 in both urban and rural settings, often recited collectively during family gatherings or wakes following death. Radio programming across AM frequencies includes daily Mass broadcasts, rosary recitations, and devotional music targeting older audiences, with Radio María operating on 12 frequencies nationwide since 1998. Morning commute hours from 6 to 8 AM feature concentrated religious programming on regional stations including Radio Santa Rosa in Lima and Radio San Gabriel in Puno, the latter broadcasting in Aymara since 1955. Catholic feast days structure the annual calendar through mandatory public holidays including Holy Thursday, Good Friday, Saints Peter and Paul on June 29, Santa Rosa de Lima on August 30, and Immaculate Conception on December 8, with All Saints' Day on November 1 seeing widespread cemetery visits and grave decoration.
Religious festivals dominate community life across Peruvian towns and cities, with each district maintaining a patron saint celebration lasting three to eight days. Lima's Señor de los Milagros procession in October draws crowds estimated at 800,000 to one million people by municipal police counts, with the purple-robed Christ image painted in 1651 by an Angolan slave parading through downtown streets on a 2,000-kilogram silver litter carried by 40 men in rotating shifts. The procession repeats on multiple Saturdays throughout October, with adherents wearing purple habits and preparing turrón de doña pepa, a traditional anise-flavored pastry available specifically during this month. Cusco's Corpus Christi celebration brings 15 saint statues from surrounding district churches to the cathedral for an overnight vigil, with each parish community preparing elaborate floral andas carrying platforms and traditional foods including chiriuchu, a cold ceremonial dish combining cuy, chicken, sausage, corn, cheese, and seaweed served only during this festival. Puno's Virgen de la Candelaria festival in February involves 172 registered folkloric dance troupes competing over two weeks, with total participation exceeding 40,000 dancers and musicians according to the Federación Regional de Folklore y Cultura Puno.