The Institute for Women’s Policy Research constructed a dataset from the 2002 through 2004 American Community Survey Public Use Microdata Files (ACS) for people residing in the state of Maryland.1 The dataset includes 25,172 wage and salary workers aged 16 to 64. Five mutually exclusive racial/ethnic categories were constructed from detailed self-reported identities: Non-Hispanic White, Non-Hispanic African American, Non-Hispanic Asian American, Hispanic, and All Other. Individuals in the “All Other” category are excluded from the analysis where race and ethnicity are disaggregated, as this group is too small for separate statistical analysis. (See Appendix I for more information about the dataset and analysis.)