The Food Environment Atlas, developed by the U.S. Department of Agriculture's Economic Research Service (ERS), is a comprehensive web-based mapping tool that provides spatial data on food environment indicators across all U.S. counties and county-equivalents. The dataset contains over 300 variables organized into categories including food access (store proximity, availability of grocery stores), restaurant density, local foods systems, nutrition assistance programs like SNAP, health outcomes, and socioeconomic characteristics. Its primary purpose is to help users understand how various food environment factors interact to influence dietary choices and health outcomes, with applications for policymaking, community planning, and academic research. The Atlas enables users to create interactive maps examining single indicators or comprehensive county profiles, with data available for download in Excel and machine-readable CSV formats. This tool serves local governments, researchers, community organizations, and the general public by providing objective analysis of food access patterns, making it valuable for identifying areas needing intervention and evaluating the effectiveness of public health initiatives.