This interactive data visualization maps DPT3 vaccine coverage in African nations in fine-scale, 5×5 kilometer increments, so that health officials nationally and locally can identify gaps in vaccine coverage and target interventions with precision, tailoring health policy decisions at local levels. This visualization was developed as part of the Mapping diphtheria-pertussis-tetanus vaccine coverage in Africa, 2000-2016: a spatial and temporal modelling study, conducted by the Institute for Health Metrics and Evaluation at the University of Washington.