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, Tonga Department of Statistics
Secondary Data Source(s): None
Geographical Resolutions Available (with count):
1. Division (5)
2. District (23)
3. Village (164)
4. Census Block (476)
Additional Comments:
1. This population database is misaligned due to the source data provided in the SPC?s PopGIS data set. This misalignment is not linear and the largest measured misalignment in a significantly populated region is approximately 200 meters.
Complied by AIR Worldwide
