Gridded Population of the World (GPW)
Gridded Population of the World (GPWv3) is the third edition of a large-scale data product that demonstrates the spatial distribution of human populations across the globe. The purpose of the GPWv3 project is to provide a spatially disaggregated population layer that is compatible with datasets from social, economic, and earth science fields. The output is unique in that the distribution of human population is converted from national or subnational spatial units (usually administrative units) of varying resolutions, to a series of geo-referenced quadrilateral grids at a resolution of 2.5 arc minutes. Included information for 232 countries with varying spatial resolutions. There are also estimated for year 2010 and 2015 available.
population size, population density