Subdivisions of Switzerland Subdivisions of Switzerland The Swiss Confederation comprises the 26 cantons of Switzerland. Each canton has its individual structure for further subdivisions. For statistical purposes, Switzerland is subdivided into seven regions at the NUTS-2 level: The 26 cantons of Switzerland are the member states of the federal state of Switzerland. Each canton was a fully sovereign state with its own borders, army and currency from the Treaty of Westphalia (1648) until the establishment of the Swiss federal state in 1848. Each canton has its own constitution, legislature, government and courts. Most of the cantons' legislatures are unicameral parliaments, their size varying
Territorial evolution of Switzerland Territorial evolution of Switzerland The territorial evolution of Switzerland occurred primarily with the acquisition of territory by the historical cantons of the Old Swiss Confederacy and its close associates. This gradual expansion took place in two phases, the growth from the medieval Founding Cantions to the "Eight Cantons" during 1332–1353, and the expansion to the "Thirteen Cantons" of the Reformation period during 1481–1513. The Helvetic Republic (formed 1798) as revised in the Act of Mediation (1803) added further territories of former Associates of the Swiss Confederacy, notably those of the Abbey of St. Gall and the Three Leagues. The territories