Detailed Household Income Share Background

The Census Bureau has implemented a number of changes in collection, categories, and methods since 1967. These include:

• Starting in 2003, respondents were allowed to choose one or more races; for the year 2002 and earlier, respondents could report only one race group
• Black alone refers to people who reported Black and did not report any other race category; before 1967, data are for "Black and other races" combined
• Asian alone refers to people who reported Asian and did not r