ACS Profile Report
Use this site to find population, housing, economic, and geographic data on the United States including cities ("Places"), urban areas, and counties
Federal Financial Institutions Examination Council
Using this site, you can enter a street address and retrieve information for the census tract in which the site is located. Median family income, population, number of housing units, and ethnicity for the tract are examples of data available.
ReferenceUSA: U.S. Consumer / Lifestyles
Search over 220 million U.S. and Canadian consumer records to identify target markets, study the demographics of a community, research consumer demand, or study potential customers based on hobbies and interests. Available through Daniel Boone Regional Library; you must have a DBRL library card to use.
Regional Economic Development, Inc.
REDI works to attract businesses to Columbia. They provide demographic data (look at the Facts 2015 book) as well as data on quality of life, buildings and sites, and the business environment
Statistical Abstract of the United States
This is a good place to start when looking for any type of data including demographic. The focus is U.S., but there is some information on foreign countries as well. For international data, look under foreign countriesin the index.