The Gridded Population of the World, Version 4 (GPWv4): Population Density, Revision 11 consists of estimates of human population density (number of persons per square kilometer) based on counts consistent with national censuses and population registers, for the years 2000, 2005, 2010, 2015, and 2020. A proportional allocation gridding algorithm, utilizing approximately 13.5 million national and sub-national administrative units, was used to assign population counts to 30 arc-second grid cells.
A recently published paper, titled “Coastal proximity of populations in 22 Pacific Island Countries and Territories” details the methodology used to undertake the analysis and presents the findings. **Purpose** * This analysis aims to estimate populations settled in coastal areas in 22 Pacific Island Countries and Territories (PICTS) using the data currently available. In addition to the coastal population estimates, the study compares the results obtained from the use of national population datasets (census) with those derived from the use of global population grids.
An open access geospatial data repository for the Pacific Region providing premier geophysical, geodetic, and marine spatial data sets. Developed through collaboration between the GeoScience, Energy and Maritime Division of the Pacific Community (SPC), University of Sydney, Geoscience Australia (GA), and GRID-Arendal.
The population was compiled from available census reports and validated using other available datasets. For each country, population counts from the finest resolution was trended to 2010 using a country-specific annual growth rate assumptions. Underlying vector geometry comes from regional sources, primarily SPC.
Primary Data Source(s): PopGIS, Federated States of Micronesia Division of Statistics
Secondary Data Source(s): None
Geographical Resolutions Available (with count):
1. State (4)
2. Municipality (421)
3. Electoral District (373)
FSM Populations by state collected from census data 1979 and 1990