There's plenty of other language in each canton (country subdivision). There would be like 20 languages at least if we count each modification of German, French

There's plenty of other language in each canton (country subdivision). There would be like 20 languages at least if we count each modification of German, French, or Italien, each part of the canton use specific argot. I would not count Bolze has a language because of that. Like patois vaudois, patois fribourgeois, valaisan, etc.