Finding information about your market is one of the most important things you can do when planning to start a business. The sites listed below will help you find that information and make sense of it. 
SIC Code search for industry data – naics.com
Data – sba.gov
Market population and income levels – census.gov
Huntington Regional Chamber of Commerce
West Virginia Small Business Development Center
SCORE – Counselors to America’s Small Businesses
CEO Express – Business Research category about 1/2 way down the page.