Importance of Immigration to Population Growth

A report by the Pew Hispanic Center, From 200 Million to 300 Million: The Numbers Behind Population Growth, underscores the point that underlay my comment on Thursday. Specifically, the report finds that:

Immigrants and their U.S.-born offspring accounted for 55% of the increase in [U.S.] population [from 200 million to 300 million] since 1966-67. 3 Within this group of 55 million, Latino immigrants and their offspring were by far the largest, representing about 29 million persons, or 53% of the addition due to immigration . . . .

Strikingly, Hispanics constituted only 4.25% of the U.S. population in 1966. In the last 40 years, that figure has grown to 14.9%. The percentage of Americans classified as "White" has fallen from 83.6% to 67% over the same period.