The population of Thusis, which resides among the eleven districts within Graubnden and created in 2017, has decreased from 1629 to 2000.
542 1629 2,717 2000 
Thusis is first mentioned in 1156 as Tosana. The municipality is the capital of the Thusis sub-district, of the Hinterrhein district, after 2017 it was part of the Viamala Region. 
