Koreans in China (), Korean Chinese (), Joseonjok, Chosŏnjok (), or Chaoxianzu () are all ethnic Koreans with Chinese nationality/citizenship. A majority of the chaoxianzu are descendants of immigrants from Korean peninsula from recent immigration. The Chinese government officially recognize them as one of the 56 ethnicities being part of the 55 ethnic minorities in China. They are the 13th largest minority group in China. Their total population was estimated at 1,923,842 and 1,830,929 according to the 2010 Chinese census. High levels of emigration to the Republic of Korea for better economic and financial opportunities, which has conversely reported a large increase of Korean Chinese in Korea, are the likely cause of the drop in China. Most of them live in South Korea and Yanbian Korean Autonomous Prefecture. They are also located in Heilongjiang, Liaoning, and Inner Mongolia Autonomous Region. The population of Koreans in China include millions of descendants of Korean immigrants with People's Republic of China citizenship, as well as smaller groups of South and North Korean expatriates, totalling roughly 2.5 million people , making it the second largest ethnic Korean population living outside the Korean Peninsula, after the United States. Terminology In South Korea, the terminology used to this group changed to be more friendly in recent times. In the 1990s, South Korean media referred to Koreans in China as jungguk-in (, "Chinese people"). Government regulations in 2004 mandated the use of the term jaeoe dongpo (, "compatriots who live abroad"). Similarly friendly terms include hanguk gye jungguk-in (, "Chinese people of Korean descent") and jungguk dongpo (, compatriots in China). The term joseon-jok (, "Joseon person") is also used, mainly in mainland China, but has been criticized by Koreans in China for being a less amicable term than those for other overseas Koreans like Korean Americans (jaemi gyopo, 在美僑胞, "compatriots in America") or Koreans in Japan (jaeil gyopo, 在日僑胞, "compatriots in Japan"). History Due to the geographic proximity between China and the Korean Peninsula, population migration of some kind had often occurred throughout history. However, most early ethnic Koreans in China had been assimilated by the Han Chinese, Manchus and Mongols. Thus, the overwhelming majority of today's ethnic Korean population in China are descendants of recent Korean arrivals. Early history After the conclusion of the Goguryeo–Tang War CE 645 - 668, over 200,000 Korean prisoners from Goguryeo were transported by the victorious Tang forces to the