Econintersect: In 2013 China and India each provided more immigrants to the U.S. than did Mexico. The data includes both authorized and unauthorized immigration. The data comes from the US Census Bureau in a paper presented by Eric B. Jensen, Anthony Knapp, C. Peter Borsella, and Kathleen Nestor: “The Place-of-Birth Composition of Immigrants to the United States: 2000 to 2013.”
The numbers of immigrants from India and China combined have increased almost one-for-one with the decline in those coming from Mexico over the past ten years
The data reveals an almost exact reversal of the immigration sources status for Latin America and Asia between 2000 and 2013. Over the same time period European immigration has declined by more than 20% while the number from Africa has increased by almost 1/3.
The following graphic gives details by individual countries:
GEI contributor Timothy Taylor has written a summary of his review of this study at his blog, Conversable Economist. He has analyzed and summarized some of the demographics presented by the study.