Colombia operates as a constitutionally secular state where 73 percent of citizens identify as Roman Catholic according to the 2018 national census, down from 92 percent in 1991. The 1991 Constitution removed Catholicism as the official state religion after 181 years of constitutional establishment dating to 1810. Article 19 of the current constitution guarantees freedom of worship and prohibits compulsory religious instruction in public schools, though private Catholic institutions educate approximately 18 percent of Colombian students. Protestant evangelicals comprise 13.5 percent of the population as of 2018, concentrated in urban peripheries of Bogotá, Cali, and Medellín where Pentecostal churches have grown since the 1980s. The Jehovah's Witness community numbers approximately 180,000 members, the Church of Jesus Christ of Latter-day Saints claims 200,000 adherents, and Colombia hosts roughly 3,500 Jews primarily in Bogotá and Barranquilla. Muslims number between 10,000 and 15,000, most residing in Maicao near the Venezuelan border where the Mosque Omar Ibn Al-Khattab opened in 1997 as the largest Islamic worship site in Latin America. Those claiming no religious affiliation reached 10.1 percent in 2018, a category that barely existed in official records before 2000.
Catholic practice shapes Colombian temporal rhythms through mandated national holidays. The government recognizes eighteen annual public holidays, twelve of which derive from Catholic observance. Epiphany falls on the first Monday following January 6. Saint Joseph's Day shifts to the Monday after March 19. Maundy Thursday and Good Friday remain fixed to the lunar calendar determining Easter. Ascension Day, Corpus Christi, Sacred Heart of Jesus, Saint Peter and Saint Paul, Assumption of Mary, All Saints' Day, Independence of Cartagena, and Immaculate Conception all trigger workplace closures nationwide. Law 51 of 1983 moved most Catholic holidays to the nearest Monday, creating long weekends called puentes that Colombians use for domestic travel. December 7 marks Día de las Velitas when families place candles on sidewalks, balconies, and windowsills after sunset to honor the Immaculate Conception, producing citywide illuminations visible from aircraft. December 16 begins the Novena de Aguinaldos, nine consecutive evenings of prayer gatherings in homes where participants sing villancicos and consume natilla custard and buñuelos fried dough. These gatherings typically include ten to thirty people rotating between family residences, with the final session occurring December 24.
Popayán conducts Colombia's most elaborate Holy Week observances, drawing 100,000 visitors to a city of 280,000 residents. Processions occur nightly from Holy Tuesday through Good Friday, featuring pasos weighing up to 2,500 kilograms carried by teams of twenty men dressed in purple or black tunics. The tradition dates to 1556 when Spanish priest Juan de Quiñónez established the first Good Friday procession. Each paso represents a specific moment from the Passion narrative, with figures carved from wood by Quiteño sculptors in the 17th and 18th centuries. The Procesión Chiquita on Holy Tuesday involves children carrying miniature pasos through the same colonial-center route their parents will follow later in the week. UNESCO inscribed these processions on the Representative List of the Intangible Cultural Heritage of Humanity in 2009. The processions follow a 1.8-kilometer circuit beginning at La Ermita church at 2000 hours, proceeding along Calle 4, Carrera 6, and Calle 5, concluding at the same location between 2200 and 2300 hours depending on crowd density. Participants maintain absolute silence during the procession, with street vendors prohibited within three blocks of the route.
Las Lajas Sanctuary sits 77 meters above the Guáitara River gorge seven kilometers from Ipiales near the Ecuadorian border. The basilica's construction began in 1916 and concluded in 1949, built in Gothic Revival style with two 100-meter towers flanking the central nave. Pilgrims visit to venerate an image of the Virgin Mary that reportedly appeared on the gorge wall in 1754 when María Mueces and her deaf-mute daughter Rosa sought shelter from a storm. The mother later testified that Rosa spoke her first words when she saw the image, saying "the mestiza is calling me." The image remains on the natural rock face inside the church rather than on a manufactured canvas or panel. Between 1.5 million and 2 million pilgrims visit annually, with peak attendance during the September 16 feast day when 40,000 people may arrive in a single day. Devotees attach metal milagros shaped like body parts, houses, or vehicles to the church walls as petitions or thanksgiving offerings. The approach bridge spans 50 meters at a height of 50 meters, constructed in 1953 to replace earlier wooden structures. Marriage ceremonies at Las Lajas require booking six to nine months in advance, with the basilica hosting approximately 150 weddings annually.
Monserrate Sanctuary rises 3,152 meters above sea level on the eastern edge of Bogotá, accessed by funicular railway or cable car from the San Diego neighborhood. The shrine honors El Señor Caído, a 17th-century statue of Christ carrying the cross, sculpted by Pedro de Lugo Albarracín between 1650 and 1656. Construction of the current church began in 1917 after a fire destroyed the colonial structure, completing in 1925. Bogotanos ascend the 1,500-step pilgrimage path on foot, particularly on Sundays when 15,000 to 20,000 people may climb between 0400 and noon. The funicular operates continuously since 1929, carrying passengers in cabins built in Switzerland. Pilgrims seek intercession for health conditions, legal proceedings, and economic difficulties, often climbing on their knees for the final 100 meters as a promesa or vow. The sanctuary complex includes a restaurant serving ajiaco soup and a viewing terrace overlooking Bogotá's urban sprawl stretching 40 kilometers south across the savanna. Masses occur hourly from 0600 to 1700 on Sundays, conducted in the main chapel which seats 300 people. The feast day of El Señor Caído falls on the first Sunday of October, drawing 50,000 pilgrims who begin ascending at midnight.
The Salt Cathedral of Zipaquirá occupies a functioning salt mine 48 kilometers north of Bogotá, carved 180 meters below surface level in tunnels excavated between 1991 and 1995. Miners worshipped in the salt chambers since the 1930s, building a first underground chapel in 1954 that closed in 1990 due to structural concerns. The current cathedral contains fourteen Stations of the Cross carved as reliefs into salt walls along a 386-meter descending path. The main nave rises 18 meters high and spans 75 meters in length, illuminated by blue and purple LED lights installed in 2007. A cross composed of salt blocks weighing 16,000 kilograms stands at the altar. Colombian architect Roswell Garavito Pearl designed the space, incorporating geological formations that existed before excavation. The mine extracts 300,000 tons of salt annually from active chambers separate from the cathedral area. Approximately 600,000 visitors enter yearly, paying 25,000 pesos for adults as of 2024. Sunday masses occur at 1100 hours in the main nave, attended by 200 to 400 people who must book in advance through the cathedral administration. The temperature remains constant at 14 degrees Celsius year-round with 75 percent humidity.