U. S. Department of Health & Human Services

Shortage Area Geographic Compilation Logic

Note: This information applies only to the spatial data in the map tools, analyzer tools, and web services.

Health Professional Shortage Areas (HPSA) and Medically Underserved Areas/Populations (MUA/P) are geographic areas which are made up of one or more components. These components include county, county subdivision (also known as minor civil division (MCD), and census tract. Each HPSA and MUA/P that consists of one or more components contains geographic identifiers for each component. These identifiers correspond to the Federal Information Processing Standards (FIPS) codes for counties and to the census-assigned codes for MCDs and census tract identifier.

The HDW creates the spatial data for the HPSA and MUA/P layers using a process that combines the different components into a single unit. All geographic identifiers refer to the Census 2010 geographic areas and are assumed to match a county FIPS code, MCD identifier, or census tract identifier associated with the 2010 Census.

HPSA Points (Facilities)

HPSA points are facilities that are designated based on population concentrations, such as correctional institutions or hospitals. HPSA points are not part of the shortage area geographic compilation logic.