This tool begins by importing the latest available data from WPDx for the given district. Next, it imports high resolution population maps of the district from ESRI’s Living Atlas. This provides an estimate of the number of people living within every 250m x 250m grid square in the district. All urban areas (based on population density) are removed from the analysis. The tool then draws a circle around all functional water points with a radius equal to the access distance provided. The total population in all of these grid squares are added together. This total number of people with water access is divided by the total estimated rural population. The result is the percentage of rural population with access to a water point that is providing water.
This analysis is based on the latest available data, and population estimates from ESRI. Any water points that have been broken, rehabilitated, or constructed for which the data is not in WPDx have not been included in this analysis. Additionally, household connections are not captured in WPDx. Additionally, because urban populations are based on population density, there may be areas that are locally considered urban which are considered rural in this analysis, or inversely rural areas that are considered urban for this analysis.