The United States Department of Agriculture's Economic Research Service (ERS) "promotes the well-being of rural America through research and analysis to better understand the economic, demographic, environmental, and social forces affecting rural regions and communities." Part of this work includes the creation of this remarkable atlas, which provides a "spatial interpretation of county-level, economic and social conditions along four dimensions: people, jobs, agriculture, and county classifications." The atlas allows users to view county-level maps for over 60 socioeconomic indicators via the interactive map here. It is quite easy to use, and there's also a pop-up box for each county that provides easy access to additional demographic information. Visitors can also download the data sets for each indicator from the "Download the Data" tab.