Theil Index: Racial Diversity

Layer displays information about racial segregation using the Theil index. This index measures the “evenness” of all races across the county based on the racial composition of the population at the block group level.

Public Transit Stops and Stations

This layer displays the locations of transit stops and stations. Data was acquired from the US Environmental Protection Agency (EPA) and is available for the 200+ metro areas.

Gross Employment Density

Layers display information about total employment density (jobs per acre) at the census block group level. For additional map layers displaying employment density by industry, browse the Map Room data and navigate to Economic>Labor Market>Employment>Jobs by Industry.

Rural vs. Urban Household Poverty

This layer displays information about the difference between rural and urban childhood poverty across the United States. Data are based on census-tract level information from the 2008-12 American Community Survey. Census tracts are defined as urban or rural based on … Continued

Locations of Primary Care Physicians

This layer displays the locations of all primary care physicians who accept Medicare. Primary care physicians are those MDs or DOs specializing in family practice, general practice, pediatric medicine, or internal medicine. Data are from the Centers for Medicare and … Continued

Chlamydia Infections by County

Layer displays information about the incidence of chlamydia among the US population in 2012. The data are from the Sexually Transmitted Diseases Surveillance System (STDSS), released by the Centers for Disease Control and Prevention (CDC) in January 2014.

Substance Abuse Treatment Facilities

Layer displays the locations of substance abuse treatment facilities across the United States. Data are from the Substance Abuse and Mental Health Services Administration (SAMHSA) facility locator, accessed January 2014.

Mental Health Treatment Facilities

Layer displays the locations of mental health treatment facilities across the United States. Data are from the Substance Abuse and Mental Health Services Administration (SAMHSA) facility locator, accessed January 2014.