There is a multitude of statistical sources both online and in print. Depending upon your field AND topic, the infomation you need might be from the government, journal articles, associations, non-profit organizations, or others source.
The U.S. government collects and disseminates statistics about a variety of topics; however, it can be difficult to find this data via government websites. Alternatively, you can run an effecitve Google search using the tricks below.
1. Limit by URL Domain: site:gov
Llimits to URLs that end in "gov," which are typically U.S. (federal, state, and city) government websites.
2. Limit by File: filetype:pdf*
Many research and government publications are in PDF format.
3. Add the word Statistics to your search
4. Add your subject.
Example Search: site:gov filetype:pdf statistics teen pregnancy
Example Search: site:gov statistics schizophrenia
*Limiting by filetype is not always necessary.