To locate statistics, ask yourself the following questions:
- Do I need information from the United States, or should I be looking for global information?
- Who (government agency, educational institution, or other organization) might collect the information?
- What is the time frame I'm looking for? Data is often collected cyclically, such as once a decade (like the US Census), annually, quarterly, monthly, etc.
The United States government is a major collector and publisher of statistics of all kinds. There are also numerous non-governmental organizations that publish statistics.
For any source, check to see if the information was originally collected by the group or agency publishing it. A reliable source will always cite the origin of the data.