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 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% to 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 0.18% for people with non-Islam religions. Some of the non-Muslim communities are Armenians, Assyrians, Bulgarian Orthodox, Catholics, Chaldeans, Greeks, Jews, and Protestants. Turkey has the largest Jewish community among the Muslim-majority countries. Currently, there are 439 churches and synagogues in Turkey.
  
  In 2006, KONDA's estimate was 0.47% for those with no religion. According to KONDA, share of adult citizens who identified as unbeliever increased from 2% in 2011 to 6% in 2021. A 2020 Gezici Araştırma poll found that 28.5% of the Generation Z identify as irreligious.