You can find statistics almost anywhere; in newspaper articles and books, on websites, in library databases, in TV advertisements, and more. Here are some useful places to look for statistical sources:
Online statistical sources available through the DU Library includes demographic, public opinion, consumer trends, health, crime and more and provide local, state, national, and international information.
Specific research groups - Think about who would be interested in your topic. What government agencies? What advocacy groups? What think-tanks or institutes? What companies? Then look at the websites and search for reports from these groups.
Search the Web - There are statistical sources freely available on the Web. Use either the word statistics or data with your topic to find helpful results. Watch out for the sponsored results and advertisements that can look like regular search results like this BP ad. When searching on the Web, always take the time to evaluate the source. Is it reliable, trustworthy, and/or unbiased source?