Waves of Chinese emigration have happened throughout history. They include the emigration to Southeast Asia beginning from the 10th century during the Tang dynasty, to the Americas during the 19th century, particularly during the California gold rush in the mid-1800s; general emigration initially around the early to mid 20th century which was mainly caused by corruption, starvation, and war due to the Warlord Era, the Second Sino-Japanese War and the Chinese Civil War; and finally elective emigration to various countries. Most emigrants were peasants and manual labourers, although there were also educated individuals who brought their various expertises to their new destinations. As of 2023, illegal Chinese immigration to New York City has accelerated, and its Flushing (法拉盛), Queens neighborhood has become the present-day global epicenter receiving Chinese immigration as well as the international control center directing such migration.

The New York metropolitan area is home to the largest and most prominent ethnic Chinese population outside of Asia, hosting Chinese populations representing all 34 provincial-level administrative units of China. The Chinese American population of the New York City metropolitan area was an estimated 893,697 as of 2017, constituting the largest and most prominent metropolitan Asian national diaspora outside Asia. New York City itself contains by far the highest ethnic Chinese population of any individual city outside Asia, estimated at 628,763 as of 2017.