You may begin with:

• Passport  provides data and market reports related to consumer lifestyles in a wide range of industries and geographies.

Additional resources:

• Mintel offers consumer market studies using both primary and secondary data and analysis in the US and some European countries. 
• SimplyMap is a mapping tool for the U.S. that incorporates market data from Simmons Experian Local.

See also the Baker Library Research Guide on Demographics & Consumer Behavior.