Alternate Names: “Costanoan” (pej.)
Dialects: Mutsun (San Juan Bautista), Rumsen (Carmel, Runsien, San Carlos).
Genealogy:
Demographics: 1 (2009).
Language Use: Revitalization work in progress; all ages attend workshops in the language. Many consider themselves speakers because they can converse in the language.
Nation of Origin: United States
Other Comments: Became extinct in the 1950s.