Population characteristics describe the diverse social, demographic, and economic features of women in the U.S. Representing slightly more than half of the Nation’s population, women and girls accounted for over 144 million in 2003.

Analysis and comparison of data by sex, age, and race and ethnicity can be used to tailor the development and evaluation of programs and policies serving women’s health.

The following section presents data on population characteristics that affect women’s health. These factors include age, race and ethnicity, household composition, education, income, occupation, and participation in Federal programs.