The 2010 U.S. Census counted 3.7 million people living in Puerto Rico, a territory of the United States. This was down from 3.8 million in 2000.
By contrast, in the 50 U.S. states and the District of Columbia (D.C.), the population of Puerto Rican-origin Hispanics increased from 3.4 million in 2000 to 4.6 million in 2010, surpassing Puerto Rico’s population. Nearly one-third of Puerto Rican-origin Hispanics in the 50 states and D.C. were born in Puerto Rico, according to Pew Hispanic Center tabulations from the 2009 American Community Survey.
Read the entire article (or download the report) at PEW Hispanic Center.