Medicare Beneficiaries with 2 or More Chronic Conditions by County, 2017
This layer displays the percentage and number of Medicare Fee-for-Service Beneficiaries with two or more of the 21 standard chronic conditions.
Medically Underserved Areas and Populations
This layer displays the location and characteristics of Primary Care Health Professional Shortage Areas (HPSAs) and Medically Underserved Areas and Populations (MUA/Ps). The HPSA layers show data for three themes: Designated Populations, Designated Types, and Clinical Scores. The MUA/P layer shows data by Designated Type. Data are current as of April 28, 2025.
Predominant Religion
This layer displays the predominant religion in each county according to the Association of Religion Data Archives (ARDA). Adherents for each congregation were summarized according to broader categories with the category with the highest number of adherents displayed here. Categories include Evangelical Protestant, Mainline Protestant, Historically Black Protestant, Judaism, Orthodox, Latter Day Saints, Catholic, or…
Adults with no Leisure-Time Physical Activity by County, 2019
This updated layer displays the estimated percentage of adults who do not participate in any leisure-time physical activity by county. These figures are multi-year modeled estimates based on survey data from the CDC Behavioral Risk Factor Surveillance System.
Air Quality – Ozone Levels (O3) by Census Tract, 2015
This layer displays the daily average concentration of ozone and the percentage of days with concentrations of ozone above the National Ambient Air Quality Standard (NAAQS) of 0.075 parts per million in 2015.
Access to SNAP-Authorized Retailers – Rate
This layer displays the number and rate of SNAP-authorized retailers in each census tract. Locations of retailers are based on the December, 2021 USDA directory of SNAP-authorized retailers.
500 Cities Project Data by City and Census Tract, 2017
Map data topics include preventative health, risk behaviors, and clinical care. Estimates from the 500 Cities Project are available at the state, city, and census tract level. Data representing year 2017 were released in December, 2019. For more map layers from this series, search the Map Room for the terms 500 Cities.
USGS Structures – Emergency Response Facilities
This layer shows emergency response facilities found in the USGS Structures Dataset
Gross Pollutant Releases
This layer displays the total pounds of toxic pollutants released by industrial and federal facilities.
Roman Catholics
This layer displays the number of Catholic adherents using data from the Association of Religious Data Archives (ARDA).