Western Siouan languages
The Western Siouan languages, also called Siouan proper or simply Siouan, are a large language family native to North America. They are closely related to the Catawban languages, sometimes called Eastern Siouan, and together with them constitute the Siouan (Siouan–Catawban) language family.
Simeulue Regency
The people of Simeulue are similar to the people in the neighboring Nias Island, speaking 3 languages (Devayan, Sigulai and Lekon) which are distinctly different from the languages spoken in mainland Aceh. The majority of the people of Simeulue are Muslim.