The differences we do observe more likely are the result of differences in income, the relatively high concentration of African in urban areas, and other dimensions of social class discussed in Chapter 12. Also, these differences continue to diminish as African American consumers move up the economic ladder. Although it is still lower than the white majority, this group’s median household income is at a historic high. We can trace this improvement directly to a steady increase in educational attainment. African Americans had a median household income of $30,439 in 2000, up from $18,676 in 1990, and more than 51 percent of married African Americans make $50,000 or more.