American FactFinder
Index of data provided by the US Census Bureau, including population, ethnic, divorce, economic, poverty, and migration statistics, as well as the
United States Population — FactMonster.com
More on United States Population from Fact Monster: Population of the United States by Race and Hispanic/Latino Origin, Census 2000 and July 1,
CIA - The World Factbook -- Rank Order - Population
Population. Date of Information. 1. World, 6525170264, July 2006 est. 2. China, 1313973713, July 2006 est. United States, 298444215, July 2006 est.
Geostat Center: Collections: Historical Census Browser
Search for information about the population and economy of US states and counties from 1790 to 1960. Data can be collected in the form of maps or tables.
Demographics of the United States - Wikipedia, the free encyclopedia
The total U.S. population crossed the 300 million mark in 2006, Self-Described Religious Identification of U.S. Adult Population: 1990 and 2001 [5]