The Gridded Population of the World, Version 4 (GPW v4), Population Density Adjusted to Match 2015 Revision of UN WPP Country Totals, produced by SEDAC, consists of estimates of human population density, based on counts consistent with national censuses and population registers with respect to relative spatial distribution but adjusted to match the 2015 revision of UN World Population Prospects country totals for the years 2000, 2005, 2010, 2015, and 2020. A proportional allocation gridding algorithm, utilizing approximately 12.5 million national and subnational administrative units, is used to assign population values to 30 arc-second (~1 km) grid cells. The population density grids are derived by dividing the population count grids by the land area grids. The pixel values represent people per km2. Resource Watch shows only a subset of the data set. For access to the full data set and additional information, see the Learn More link.
Gridded Populations of the World, UN-Adjusted Population Density, v4
SEDAC has also produced gridded data quality indicators to provide additional information about the quality of input population data and to provide context for the population count and density grids. This provides information on where data are of poor quality or missing.
Center for International Earth Science Information Network (CIESIN), Columbia University. 2016. "Gridded Population of the World (GPW), v4: UN-Adjusted Population Density, v4 (2000, 2005, 2010, 2015, 2020)." Palisades, NY: SEDAC. Retrieved from http://dx.doi.org/10.7927/H4HX19NJ. Accessed through Resource Watch, (date). www.resourcewatch.org.
2000, 2005, 2010, 2015, 2020