1. Look for data available through State Agencies. Many Federal agencies also have offices in individual states or regions which may provide data or statistics.
2. Look for reports that may have the data you need. Two good sources of such reports are the Congressional Budget Office, and the Government Accountability Office. The Congressional Research Service may also be helpful. They are not required to put their reports online, but CRS reports are available from other locations, including Open CRS, the University of North Texas and the National Council for Science & the Environment.
3. Congressional hearings or Congressional Committee Prints may publish statistics about a topic. Search for hearings using THOMAS (at the Library of Congress) or at GPOAccess from the Government Printing Office. You can also check an individual committee’s web site at the House of Representatives or the Senate to see if hearings and reports are available.
5. When using statistical compilations, such as the Statistical Abstract of the United States, look at the sources for the data in that table. These will usually be found under the table and may provide another source or agency you can check.