The Hmong-American population is among the youngest of all groups in the United States, with the majority being under 30 years old, born after 1980, with most part-Hmong are under 10 years old.
In terms of metropolitan area, the largest Hmong-American community is in Minneapolis-Saint Paul-Bloomington, MN Metro Area (64,422); followed by Fresno, CA Metro Area (31,771); Sacramento, CA Metro Area (26,996); Milwaukee, WI Metro Area (11,904); and Merced, CA Metro Area (7,254).
Initially only 1,000 Hmong people were evacuated to the US.
In May 1976, another 11,000 Hmong were allowed to enter the United States.
The clans, from which the Hmong take their surnames, are: Chang (Tsaab) or Cha (Tsab), Chao (Tsom), Cheng (Tsheej), Chue (Tswb), Fang (Faaj) or Fa (Fag), Hang (Haam) or Ha (Ham), Her (Hawj), Khang (Khaab) or Kha (Khab), Kong (Koo) or Soung (Xoom), Kue (Kwm), Lee (Lis), Lor (Lauj), Moua (Muas), Pha (Phab), Thao (Thoj), Vang (Vaaj) or Va (Vaj), Vue or Vu (Vwj), Xiong (Xyooj) and Yang (Yaaj) or Ya (Yaj).