The U.S. Government publishes the Statistical Abstract of the United States each year, filled with data on the social and economic conditions of its citizenry. You can find this publication online at the U.S. Census Bureau website as well as historical versions dating back to 1878.
To find print copies of this handy book in the library, check at the Reference Desk's Ready Reference collection. The Statistical Abstract provides a thorough statistical analysis of the entire nation, subdivided according to numerous social strata and state rankings. Check the index to find the information you need, but keep in mind the numbers given refer to tables rather than page numbers.