Religion in Switzerland

Christianity is the predominant religion of Switzerland, its presence going back to the Roman era. Since the 16th century, Switzerland has been traditionally divided into Roman Catholic and Reformed confessions.
However, adherence to Christian churches has declined considerably since the late 20th century, from close to 94% in 1980 to about 66% as of 2017. Furthermore notable is the significant difference in church adherence between Swiss citizens and foreign nationals in 2017.
Switzerland as a federal state has no state religion, though most of the cantons recognize official churches , in all cases including the Roman Catholic Church and the Swiss Reformed Church. These churches, and in some cantons also the Old Catholic Church and Jewish congregations, are financed by official taxation of adherents.

Author: Wikipedia