The Yao people or Dao is a classification for various ethnic minorities in China and Vietnam. Their majority branch is also known as Mien. They are one of the 56 officially recognized ethnic groups in China and reside in the mountainous southwest and south of the country. They also form one of the 54 ethnic groups officially recognized by Vietnam. They numbered 2,796,003 in the 2010 Chinese census and 891,151 in the 2019 Vietnamese census. An estimated 60,000 Yao of the Iu Mien branch reside in the United States, mostly in the Western coastal states.