A Population Pyramid showing Fiji’s age-sex structure as at Census Night 2017. The broad base of the structure indicates a population that is young with 10.4 percent of the population under five years of age while 16.7% are in the youth age group of 15-24.

A population grid, in the context of geographic information systems (GIS) and spatial analysis, refers to a spatial data representation of population data that is organized in a grid or raster format. This format divides a geographic area into a regular grid of cells or pixels, where each cell contains information about the population residing within that cell. Statistical population grid data are statistics geographically referenced to a system of (usually squared) grid cells in a grid net with Cartesian coordinates ¹ . Population grids are powerful tools for studying the interrelationships between human activities and the environment  ² . Population grids are a valuable tool for various applications, including demographic analysis, urban planning, disaster management, and resource allocation.

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