A number of different data resources are available that provide information on public transportation. These various data resources provide summary information at the state, local and national level. Many of these resources also provide very detailed information on individual public transportation systems.

APTA produces a number of specific products that serve as the resource for industry statistics, including the annual Fact Book.  The Fact Book provides a wide range of data for all public transportation systems, including those that do not report to the National Transit Database.  As such, this particular resource is considered the most comprehensive in the transit industry. Other statistical products generated by APTA, including the vehicle database, fare report, and infrastructure report, are based in large part on data provided to APTA by its members.

In addition to APTA products, a number of outside data resources provide useful agency specific information. Most notably, the National Transit Database serves as a common resource for public transportation systems.