The Hmong are one of the most recent Asian immigrant groups to come to the United States. Although there are Hmong people living in Thailand, Vietnam and China, nearly all of the Hmong who settled in the U.S. are from Laos. Hmong and other immigrants were assisted by the passage of the Indochina Migration and Refugee Assistance Act of 1975 in their efforts to relocate after the Vietnam War. Data from the 2010 census shows that the U.S. Hmong population rose from 45,443 in 2000 to 66,181 in 2010, an increase of 46 percent. U.S. Census data estimates that there are more than 250,000 Hmong living in the United States with more than 5,000 living in Michigan.