Detailed and historical socioeconomic statistics and demographic profiles for the Black Population in the United States are available from the Census Bureau.
African-American/Black Market Profile was originally compiled by the MPA: Magazine Publishers of America.
Socioeconomic statistics and demographic profiles for the U.S. population of Hispanic Origin are available from the Census Bureau.
Many reports dealing with demographics, labor, employment, income, and housing are covered by Research on Economics from the Pew Hispanic Center.
The Center for Latin American, Caribbean & Latino Studies at the CUNY Graduate Center offers many Latino Data Project Reports, including profiles of immigrants from specific countries.
Experian publishes a periodic report on The New American Consumer: Trends in Hispanic Consumer Demographics which can be requested
Start with this summary from the Census Bureau on the Asian Population: 2010.
Other reports and tables on the Asian Population are also available from the Census Bureau:
One recent American Community Survey Brief covers The Foreign-Born From Asia: 2011.
A recently updated report on Asian Immigrants in the United States has been compiled by the Migration Policy Institute.
Asian-American Market Profile was compiled by the MPA: Magazine Publishers of America.