Our data, your database. Seamlessly connect to SparkMap data with the API. Learn more about the SparkMap API.
Updated maps and data for the Digital Divide Index (DDI). The 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 the socioeconomic (SE) score.
Updated health care provider and mortality data from the 2025 County Health Rankings are now available, including the September 2025 provider data refresh and the November 2025 supplemental mortality update. Affected indicators: Clinical Care (September 2025 Update) Access to Dentists, 2023 Access to Mental Health Providers, 2025 Access to Primary Care Physicians, 2022 Access to…
Updated health care provider and mortality data from the 2025 County Health Rankings are now available, including the September 2025 provider data refresh and the November 2025 supplemental mortality update. Affected indicators: Clinical Care (September 2025 Update) Access to Dentists, 2023 Access to Mental Health Providers, 2025 Access to Primary Care Physicians, 2022 Access to…
New maps and data are now available for the CDC diabetes surveillance indicator diabetes incidence. As part of the 2025 data release, all county-level estimates have been updated using the CDC’s latest methods, and historical data have been recalculated back to 2004 to ensure consistent comparisons across years.
New maps and data are now available for key CDC diabetes surveillance indicators, including adult obesity, and physical inactivity. As part of the 2025 data release, all county-level estimates have been updated using the CDC’s latest methods, and historical data have been recalculated back to 2004 to ensure consistent comparisons across years.
This layer displays the total number of providers that provide broadband level services. Only records with copper, cable, fiber, or licensed fixed wireless are counted.
The 2023 update of the Child Opportunity Index (COI 3.0) expands neighborhood-level data on children’s access to opportunity through 2023, incorporating enhanced indicators and improved data sources. This release refines measurement across 14 subdomains and standardizes values using the 2023 child population, offering a clearer picture of disparities in resources that shape children’s development. Because…
This layer displays the number and rate of SNAP-authorized retailers in each census tract. Locations of retailers are based on the December, 2025 USDA directory of SNAP-authorized retailers.
This layer displays the percent of students eligible for free or reduced price lunches by school.
New maps showing domestic well use for drinking water! The quality and safety of water from domestic wells are not regulated by the Federal Safe Drinking Water Act or, in most cases, by state laws. Instead, individual homeowners are responsible for maintaining their domestic well systems and for monitoring water quality. Well use data is…