U.S. Population
In 2006, the total U.S. population was over 299 million, with females comprising 50.8 percent of that total. Females younger than 35 years of age accounted for 46.1 percent of the female population, those aged 35–64 years accounted for 39.7 percent, and females aged 65 years and older accounted for 14.2 percent.
The distribution by sex was fairly even across younger age groups; however, women accounted for a greater percentage of the older population than men. Of those aged 65 and older, 58.0 percent were women.
