Layers display information about new incidence of sexually transmitted infections, and the prevalence of HIV / AIDS.
Prescription Drug Claims for Opioids by ZIP Code and County, 2013
Layer displays the percentage of claims for prescription drugs that were for opioid drugs in 2013. Data is available by county, ZIP Code Tabulation Area (ZCTA) and by physician (address).
SNAP Recipients by County, 2013
This layer displays the percentage of population receiving SNAP benefits by county. Data are from the US Census Bureau 2014 Small Area Income and Poverty Estimates (SAIPE) dataset, released December 2015.
Fatal Motor Vehicle Crashes
This layer displays the location or intersection of fatal crashes occurring in 2015.
Air Quality – Fine Particulate Matter (PM2.5) by Census Tract, 2012
This layer displays the percentage of days with concentrations of ozone matter above the National Ambient Air Quality Standard (NAAQS) of 35.0 micrograms per cubic meter.
EPA Climate Change Indicators – Change in Snowfall
This indicator examines changes in total snowfall in the contiguous 48 United States. Indicator data are acquired from the EPA’s Climate Change Indicators in the United States, Fourth Edition, published in 2016.
Places of Worship, 2016
This layer displays locations of places of worship. Address-level data are acquired from the September 2016 IRS Exempt Organization Business Master File Extract (EO BMF) based on filing requirement code.
EPA Climate Change Indicators – Change in River Flooding
This indicator examines changes in the size and frequency of inland river flood events in the United States. Indicator data are acquired from the EPA’s Climate Change Indicators in the United States, Fourth Edition, published in 2016.
National Hydrography Dataset (Waterbody)
The National Hydrography Dataset (NHD) is used to portray surface water. The NHD represents the drainage network with features such as rivers, streams, canals, lakes, ponds, coastline, etc. The principal components of the NHD are:
- NHDFlowline: This is the fundamental flow network consisting predominantly of stream/river and artificial path vector features. It represents the spatial geometry, carries the attributes, models the water flow, and contains linear referencing measures for locating events on the network. Additional NHDFlowline features are canal/ditch, pipeline, connector, underground conduit, and coastline.
- NHDArea: This feature class contains many additional features of water polygons. One of the more important is the stream/river feature. It represents the aerial extent of the water in a wide stream/river with a basic set of attributes. They typically contain NHDFlowline artificial paths that are used to model the stream/river. Artificial path carries the critical attributes of the stream/river, whereas NHDArea represents the geometric extent.
- NHDWaterbody: Basic waterbodies such as lake/pond features are represented here. They portray the spatial geometry and the attributes of the feature. These water polygons may contain NHDFlowline artificial paths to allow the representation of water flow. Other NHDWaterbody features are swamp/marsh, reservoir, playa, estuary, and ice mass.
On-Time Graduation Rates, 2014-15
This layer displays information about the adjusted four-year cohort graduation rate for school-districts and counties in the United States.