Our data, your database. Seamlessly connect to SparkMap data with the API. Learn more about the SparkMap API.
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.
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.
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.
This layer shows emergency response facilities found in the USGS Structures Dataset
This layer displays the total pounds of toxic pollutants released by industrial and federal facilities.
This layer displays the number of Catholic adherents using data from the Association of Religious Data Archives (ARDA).
This layer displays deaths of despair rates from the CDC’s National Vital Statistics System – Mortality database. Data are 5-year aggregates for 2018-22 and grouped by ICD-10 codes.
Layer displays the rate of home loan originations per 10,000 population by county and census tract. Additional updates include map layers showing loans by purpose, applicant income, and applicant race/ethnicity.
This layer displays the total number and rate of chlamydia infections diagnosed during the year 2022. Data are from the Centers for Disease Control and Prevention (CDC) Sexually Transmitted Diseases Surveillance System (STDSS).
This layer displays homicide mortality rates from the CDC’s National Vital Statistics System – Mortality database. Data are 5-year aggregates for 2016-20 and grouped by ICD-10 codes.