The 15 community types identified in the American Communities Project (ACP) were derived from a standard clustering method of analysis, conducted by political scientist Iris Hui, PhD, where a set of 36 different indicators – everything from population density to military service members – were sorted using an algorithm that identified like places.
The majority of the data used to define the types in the ACP came from the U.S. Census American Community Survey, 2008-2012. Data on religious adherence and faith came from the Religious Congregations and Membership Study, 2010.
On-Time Graduation Rates, 2016-2017
This layer displays information about the adjusted four-year cohort graduation rate for school-districts and counties in the United States.
New maps from the Washington Post’s analysis of the DEA’s pain pill database are now available!
This map layer displays the number of prescription opioid pain pills (total and per capita) purchased for sale in counties across the United States. Data are based on CARES of analysis data made available by the Washington Post.
Data from the 2019 County Health Rankings are here!
Data and maps from the 2019 County Health Rankings are now available! Click the map below to view the rank and underlying data for Premature Death, or search for additional updates by searching the Map Room for the term “CHR 2019”.
High-strength formula opioid pills per capita, 2006-2012
This layer displays the average annual number of high-strength (>30 MME) prescription opioid pain pills purchased for sale in counties across the United States. Data are based on CARES of analysis data made available by the Washington Post.
Percentage of Students Eligible for Free or Reduced Price Lunch by School
This layer displays information about free and reduced price lunch eligibility among public school students. This point-level data is acquired from the 2016-2017 National Center for Education Statistics (NCES) Common Core of Data (CCD) Public School Universe Survey dataset.
Safe Drinking Water Information System Sites
This layer displays the locations of a subset of the Environmental Protection Agency (EPA) Safe Drinking Water Information System (SDWIS) sites. The SDWIS contains information about public water systems and their violations of EPA’s drinking water regulations. Data can be accessed through the EPA’s Clip N Ship map application. For more information, please visit the Safe Drinking Water Information System web page.
Army Corps Floodwalls
This layer displays United States Army Core of Engineers surveyed Floodwalls. The USACE defines an Floodwall as a structure erected to protect areas from high river stages. For more information about USACE data, visit the National Levee Database.
Emissions & Generation Resource Integrated Database (eGRID)
This layer displays the locations of the Environmental Protection Agency (EPA) Emissions & Generation Resource Integrated Database (eGRID) sites. The eGRID is a comprehensive source of data on the locations and environmental characteristics of almost all electric power generated in the United States. For more information, please visit the EPA eGRID web page.
Army Corps Enbankments
This layer displays United States Army Core of Engineers surveyed Embankments. The USACE defines an Embankment as the area of a floodplain from which flood water is excluded by the levee system. For more information about USACE data, visit the National Levee Database.