This updated dataset reports the total number of days in which an extreme heat event was above 95 degrees between 2021-2023 at the county and Census Tract levels. Data were obtained from the Centers for Disease Control and Prevention (CDC) Environmental Public Health Tracking Network (EPHTN).
Housing Stress Counties
Housing stress counties are those where at least 29 percent of owner- and renter-occupied housing units had at least one of the following conditions in the 2018–22 5-year ACS: 1) lacking complete plumbing facilities, 2) lacking complete kitchen facilities, 3) with 1.01 or more occupants per room, 4) selected monthly owner costs as a percentage of household income greater than 30 percent, or 5) gross rent as a percentage of household income greater than 30 percent.
Heat Index – Average Days Above 95th Percentile
This updated dataset reports the total number of days in which an extreme heat event was above the 95th percentile between 2021-2023 at the county and Census tract levels. Data were obtained from the Centers for Disease Control and Prevention (CDC) Environmental Public Health Tracking Network (EPHTN).
Low Employment Counties
Low employment counties are those where less than 63 percent of residents ages 25 to 54 were employed in the 2018–22 5-year ACS.Metropolitan and nonmetropolitan areas are based on the U.S. Office of Management and Budget 2023 delineation of core based statistical areas.
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 (NHIS), and uses the U. S. Census Small Area Estimates (SAE) methodology to estimate data for non-response areas. Low (-95%) and High (+95%) confidence intervals are also included in the popup. The width of a confidence interval depends on the amount of variability in the data. Narrow confidence intervals tend to imply greater certainty in the estimate, while wide confidence intervals tend to imply more variability in the data and could mean there is less certainty. For more information visit the State Cancer Profiles Methodology Page.
Real-time Air Quality Index (AQI) – Ozone and Particulate Matter
This US EPA feature layer is updated hourly and reflects the latest hour of air quality data received from each monitoring site that reports to AirNow. The concentration and AQI values are for Ozone and Particulate Matter (PM) only. Air quality index ranges from 0-5,000 with higher values indicating worse air quality.
Health Insurance Marketplace Enrollment, 2025
Area Deprivation Index by Census Block Group
The 2023 Area Deprivation Index is now available! The ADI map displays rankings of neighborhoods by socioeconomic status disadvantage in a region of interest (e.g. at the state or national level). It includes factors for the theoretical domains of income, education, employment, and housing quality. It can be used to inform health delivery and policy, especially for the most disadvantaged neighborhood groups. The 2023 ADI was constructed using the 2019-2023 5-year estimates from the US Census’ American Community Survey.
On-Farm Market Sites
Layer displays the location of on-farm markets across the US. Data was obtained from the USDA Local Food Directories on July 12, 2025.
Farmers’ Markets Accepting WIC / WIC Cash
This layer displays the locations of farmer’s markets across the United States that accept WIC benefits. Data is current as of July 12, 2025.