Digital Divide Index

The Digital Divide Index or DDI ranges in value from 0 to 100, where 100 indicates the highest digital divide. It is composed of two scores, also ranging from 0 to 100: the infrastructure/adoption (INFA) score and

Ookla Internet Speed Test

This layer displays the median download speed for a county or tract as measured by the Ookla speed test, available at speedtest.net . Data was aggregated from January-June, 2020. Data was accessed via the National Telecommunications and Information Administration (NTIA).

Low Food Access Population, 2019

This layer displays the percentage and total population with Limited Food Access across the US. A population is defined as having limited food access if they are living more than 1 mile from a supermarket or large grocery store if … Continued

Food Desert Census Tracts, Change 2015-2019

This layer displays the change in census tracts labeled as Food Deserts from 2015 to 2019. The Healthy Food Financing Initiative (HFFI) Working Group considers a food desert as a low-income census tract where a substantial number or share of … Continued

Heat Index – Average Days Above 99th Percentile

This updated dataset reports the total number of days in which an extreme heat event was above the 99th percentile between 2017-2019 at the county level. Data were obtained from the Centers for Disease Control and Prevention (CDC) Environmental Public … Continued

Influenza Vaccination Rate by County

This layer displays immunization rates for seasonal influenza among adults aged 18 and older. Data are from the Centers for Disease Control and Prevention (CDC) FluVaxView data portal. The county-level estimates within FluVaxView are derived from responses to the 2018 … Continued

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 2017-2019 at the county level. Data were obtained from the Centers for Disease Control and Prevention (CDC) Environmental Public … Continued