Updated maps of the U.S. Hispanic population by county are available on the Pew Hispanic Center website. They show population numbers, shares and growth for 1980, 1990, 2000 and 2008, using population estimates and Decennial Census data from the U.S. Census Bureau.  The county data for 1990, 2000 and 2008 also can be downloaded.

The Pew Hispanic Center has released 10 statistical profiles of U.S. Hispanics by their country of origin, based on self-described family ancestry or place of birth in response to questions on the Census Bureau’s American Community Survey.

Foreign-born Hispanics know more about the 2010 Census than their U.S.-born counterparts, and are more likely to say that they have participated or definitely will, according to a nationwide survey released today.

Despite the long history of Hispanic residents in the United States, there was no systematic effort to count this group separately in the Census until the late 20th century.