25,600 (2010 census), decreasing.
Southern Louisiana, west of the Mississippi to Avoyelles, Evangeline, Allen, and Calcasieu parishes; Texas, small border area west of Sabine river, east of Beaumont.
Big Woods French, Marsh French, Prairie French. Reportedly Cajun speakers can partially understand standard French [fra].
Ancestors came from French Canada in the 18th century. Christian.