Source: U.S. Census Bureau, 2010 Census of Population, Profiles of General Demographic Characteristics. Updated every 10 years. http://factfinder2.census.gov.
Sex classification is based on self-classification by gender, either male or female.
The number of females is expressed as a percent of the total population.
Scope and Methodology:
These data were derived from answers to a question that was asked of all people in Census 2010.