911 Service Areas

911 Public Safety Answering Point (PSAP) service area boundaries in the United States According to the National Emergency Number Association (NENA), a Public Safety Answering Point (PSAP) is a facility equipped and staffed to receive 9-1-1 calls. The service area is the geographic area within which a 911 call placed using a landline is answered…

Religious Diversity

This layer displays the religious diversity index in each county using data from the Association of Religious Data Archives (ARDA). Adherents for each congregation were summarized according to broader categories. Categories used to calculate the index include Evangelical Protestant, Mainline Protestant, Historically Black Protestant, Judaism, Orthodox, Latter Day Saints, Catholic, Hindu, Buddhist, Jehova’s Witness, and…

EJ Screen Lead Paint Exposure

The lead paint indicator is the percentage of occupied housing units built before 1960, calculated from the U.S. Census Bureau’s ACS 5-year summary estimates on age of housing stock. EJScreen uses age of housing stock as a surrogate for potential lead exposure as regulations banning lead-based residential paint in 1978 led to the reduction and…

Colonoscopy in Past 10 Years (Population Aged 50-75)

This layer displays cancer screening and risk factor information from the State Cancer Profiles data – a collaboration between the Center For Disease Control and Prevention (CDC) and National Cancer Institute (NCI). County level model-based estimates are calculated by combining responses from the Behavioral Risk Factor Surveillance System (BRFSS) and the National Health Interview Survey…