Current Numbers

During the 1990s, an average of more than 1.3 million immigrants — legal and illegal — settled in the United States each year. Between January 2000 and March 2002, 3.3 million additional immigrants have arrived. In less than 50 years, the U.S. Census Bureau projects that immigration will cause the population of the United States to increase from its present 288 million to more than 400 million.
The foreign-born population of the United States is currently 33.1 million, equal to 11.5 percent of the U.S. population. Of this total, the Census Bureau estimates 8-9 million are illegal immigrants. Other estimates indicate a considerably higher number of illegal immigrants.
Approximately 1 million people receive permanent residency annually. In addition, the Census Bureau estimates a net increase of 500,000 illegal immigrants annually.
The present level of immigration is significantly higher than the average historical level of immigration. This flow may be attributed, in part, to the extraordinary broadening of U.S. immigration policy in 1965. Since 1970, more than 30 million legal and illegal immigrants have settled in the U.S., representing more than one-third of all people ever to come to America's shores.
At the peak of the Great Wave of immigration in 1910, the number of immigrants living in the U.S. was less than half of what it is today, though the percentage of the population was slightly higher. The annual arrival of 1.5 million legal and illegal immigrants, coupled with 750,000 annual births to immigrant women, is the determinate factor— or three-fourths— of all U.S. population growth.