BigSurv20 will be held at Utrecht University, in Utrecht, The Netherlands. The conference offers an opportunity to address the ongoing paradigm shift in how researchers produce, analyze, and use statistics. The event is intended to foster communication, collaboration, and understanding between two groups: (1) computer and data scientists focusing on Big Data sources and analysis techniques, and (2) methodologists and social science researchers working with traditional sources of data collection and statistical analyses. By uniting efforts, we can identify and overcome academic divides and make unified "Big Survey Data" population inference a reality. Utrecht is located a convenient 25-minute train ride from Amsterdam airport, and has excellent train connections to the rest of Europe.