Cambodian Americans, also Khmer Americans, are Americans of Cambodian or Khmer ancestry. In addition, Cambodian Americans are also Americans with ancestry of other ethnic groups of Cambodia, such as the Chams and Chinese Cambodians. According to the 2010 US Census, an estimated 276,667 people of Cambodian descent reside in the United States, with most of the population concentrated in California, Pennsylvania and Massachusetts. After the fall of Phnom Penh to the Khmer Rouge regime in 1975, few Cambodians were able to escape; it was not until after the regime was overthrown in 1979 did large waves of Cambodians begin immigrating to the US as refugees. Between 1975 and 1994, nearly 158,000 Cambodians were admitted. About 149,000 of them entered the country as refugees, and 6,000 entered as immigrants and 2,500 as humanitarian and public interest parolees. To encourage rapid cultural assimilation and to spread the economic impact, the US government dispersed the refugees into various cities and states throughout the country. However, once established enough to be able to communicate and travel, many Cambodians began migrating to certain places where the climate was more like home, they knew friends and relatives had been sent, or there were rumored to be familiar jobs or higher government benefits. Consequently, large communities of Cambodians took root in cities such as Long Beach, Fresno and Stockton in California; Providence, Rhode Island; Philadelphia; Cleveland, Ohio; Lynn and Lowell in Massachusetts; and Seattle and Portland in the Pacific Northwest. Since 1994, Cambodians admitted into the United States have entered the country as immigrants and not as refugees, but the number per year is small. Most of the increase in the ethnic Cambodian population can be attributed to American-born children of Cambodian immigrants or of newer people of Cambodian descent. Although the Cambodians were spared from the destruction of their home country, whose tragedies maintained a lasting impact into the 21st century, they would come to face newer adversities and hardships in America. The 2010 census counted 276,667 persons of Cambodian descent in the United States, up from 206,052 in 2000. Of them, 231,616 (84%) are all-Cambodian and 45,051 part-Cambodian. Demographics The states with the highest concentration of Cambodian American residents are Rhode Island (0.5%; 5,176), Massachusetts (0.4%; 25,387), Washington (0.3%; 19,101), California (0.2%; 86,244), and Minnesota (0.2%; 7,850). West Coast In Southern California, there is a large Cambodian population in Long Beach, and smaller yet significant