As global health resources become more scarce and the prevalence of international crises increase, it is more important than ever that we design and target development programs to maximize our investments. The complexity of the applicable social, political and physical environments must be taken into consideration. Formative research can help us to understand these environments for program design, but formative research is often skipped due to budgetary, time or safety concerns that constrain the collection of new data. What many overlook is the vast untapped potential of existing household survey data that are rigorously collected, clean and freely available online around the world. By mining existing survey data, we can conduct the formative research necessary to maximize development impact.