The American Community Survey (ACS) reports household income by the average of each income quintile. A quintile is any fifth of households sorted from least to greatest income. The first quintile is bottom 20% of households by income, the second quintile contains households between 20% and 40% of income (the next 20%), and so on. The fifth quintile is the top 20% of households by income. Within this group, and also reported in the ACS, is the top 5% of households.

Gaps in household median income by the racial and ethnic group of the householder are also summarized.

Median earnings by sex are summarized, along with the difference, or gap, between male and female.