section_path: Demographics/Religion
section_name: Religion
paragraph_text: Religion
  
  Turkey is a secular state with no official state religion; the constitution provides for freedom of religion and conscience. According to the CIA World Factbook, Muslims constitute 99.8% of the population, most of them being Sunni. Based on a survey, KONDA 's estimate for Muslims was 99.4% in 2006. According to Minority Rights Group International, estimates of share of Alevi are between 10% and 40% of the population. KONDA's estimate was 5% in 2006. 4% of adult citizens identified as Alevi in a survey in 2021, while 88% identified as Sunni.
  
  The percentage of non-Muslims in modern-day Turkey was 19.1% in 1914, but fell to 2.5% in 1927. Currently, non-Muslims constitute 0.2% of the population according to the World Factbook. In 2006, KONDA's estimate was that 0.18% of the population adhered to non-Islamic religions. Some of the non-Muslim communities are Armenians, Assyrians, Bulgarian Orthodox, Catholics, Greeks, Jews, and Protestants. Sources estimate that the Christian population in Turkey ranges between 180,000 and 320,000. Turkey has the largest Jewish community among the Muslim-majority countries. Currently, there are 439 churches and synagogues in Turkey.
  
  In 2006, KONDA estimated that 0.47% of the population had no religion. According to KONDA, the share of adult citizens who identified as nonbelievers increased from 2% in 2011 to 6% in 2021. A 2020 Gezici Araştırma poll found that 28.5% of the Generation Z identified as irreligious.