Because of rounding, figures may not add up to 100 per cent. In some instances, U.S. totals may include data on service schools and outlying areas that are not shown separately. Figures cover people 25 years and older. Figures are estimates based on a survey of 60,000 households conducted in March 1997 and March 1998. The figures are subject to sampling error, and the Census Bureau advises against using them to rank the states.
Poverty thresholds vary by family size and composition.
The statistics were prepared for the foundation by the Bureau of Labor Statistics, using data from the Census Bureau's Current Population Survey. Figures represent the composition of state legislatures as of July 1999. Some boards also have governing authority. These agencies were created in 1994 as part of the federal government's national-service program. Through this program, students can earn college scholarships or loan forgiveness in return for service.