This comprehensive series contains a vast collection of relevant statistics, including population, finances, and employment, dating from 1880 to 2012. By clicking on the above hyperlink, you only need to scroll down the US Census webpage to find the year you need.
Here is the most recent: Statistical Abstract of the United States 2012.
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The American Marketplace: Demographics and Spending Patterns
--Ready Reference-- HA 214 .A6
County and City Extra : Annual Metro, City, and County Data Book
--Reference Stacks-- HA 203 .C68; also available online
Demographics USA
--Reference Stacks-- HF 5415.1 .D46
Generation X : The Young Adult Market
--4th floor Stacks-- HC 110 .C6 M544
Household Spending : Who Spends How Much On What
--Ready Reference-- HC 110 .C6 H68
Market Share Reporter
--4th floor Stacks-- HF 5415.3 .M372
The Millennials : Americans born 1977 to 1994
--Reference Stacks-- HQ796 .M545 2004
The Official Guide to American Incomes: The Demographics of Who Does and Who Doesn't Have Money: With a Special Section on Discretionary Income
--4th floor Stacks-- HC 110 .I5 E98
The Sourcebook of Zip Code Demographics
--Reference Stacks-- HA 203 .S66
Statistical Abstract of the United States
--Ready Reference-- HA 202 .A33
US Census Bureau -- American Factfinder
--Online--
World Consumer Lifestyles Databook: Key Trends
--Ready Reference-- HF5415.3 .W66