The dataset includes four shapefiles showing the location data of geological areas of interest for Geothermal District Heating, including hot sedimentary aquifers and Neogene basins. The hot sedimentary aquifers layer represents areas where Neogene basin contours (sourced from the IGME Europe geological map at a scale of 1:5,000,000) overlap with regions where subsurface temperatures exceed 50°C at 1000m depth and/or 100°C at 2000m depth.This dataset was developed for assessing the potential of Geothermal District Heating in Europe as part of the GeoDH project (http://geodh.eu/). Please note that this represents the state of the art as of 2014 and that geological, technological, and regulatory developments may have occurred since its creation, and users should verify if more recent data is available for their purposes.