Siouan languages
Siouan or Siouan–Catawban is a language family of North America that is located primarily in the Great Plains, Ohio and Mississippi valleys and southeastern North America with a few other languages in the east.
Sion, Switzerland
Most of the population () speaks French (22,338 or 82.2%) as their first language, German is the second most common (1,523 or 5.6%) and Portuguese is the third (912 or 3.4%). There are 855 people who speak Italian and 19 people who speak Romansh.