This dataset compromises all country files included in the WHO/UNICEF Joint Monitoring Programme (JMP) global database (https://washdata.org/data/household, downloaded June 2019). It includes: Country: ISO 3 code + Complete name Service: Water or Sanitation Setting: Urban or Rural Source: Category of the household survey Year: Date of the household survey X1, X2 and X3: percentage of the population using… In Water: X1 all improved drinking water sources; X2 piped drinking water sources and X3 no drinking water facility (surface water). In Sanitation: X1 all improved sanitation facilities; X2 improved sanitation facilities connected to sewers and X3 no sanitation facilities (open defecation). The dataset is used in the following paper: Ezbakhe, F. and Pérez-Foguet, A. (2019) Estimating access to drinking water and sanitation: The need to account for uncertainty in trend analysis. Science of the Total Environment. DOI: 10.1016/j.scitotenv.2019.133830 https://doi.org/10.1016/j.scitotenv.2019.133830