NSSP Participation and Coverage
The map below shows participation in NSSP as of March 31, 2020, with 59 sites (47 states and the District of Columbia).
Definitions: NSSP consolidates facilities that provide data under a single data administrative authority called a site administrator. These facilities and single-site administrator constitute a site.
NSSP publishes data for emergency department (ED) visit coverage each quarter. As of March 31, 2020, data from EDs covered about 73% of all ED visits in the country. There were 5,041 facilities, including 3,310 EDs from 59 sites (47 states and the District of Columbia), actively contributing data to the NSSP BioSense Platform. For detailed information on our calculations for estimating emergency department coverage, please visit this page.