Location Information

The locations in the Data Trends & Maps system are classified under national, regional, states, and other locations.

National

In this Web site, National data addresses populations representing the entire United States.

Regions

Regions are classified as shown in the table below.

States

State data includes data representing populations from each of the fifty states in the United States, plus Washington, D.C.

Other Locations (Sentinel Sites)

Other Locations consist of Sentinel Sites, which are locations or selected reporting sites that are not typically defined by county, state, or national boundaries.