patrick.net

In 2013, China became the top sending country for immigrants to the United States, replacing Mexico. This followed a decade where immigration from China increased while immigration from Mexico decreased. In addition to China, several of the other top immigrant-sending countries in 2013 were in Asia including India, Korea, the Philippines, and Japan.

http://www.census.gov/content/dam/Census/newsroom/press-kits/2015/china_paa_v14.pdf