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Learn about the age structure within countries using population pyramids. Discover different types like stationary, progressive, and regressive pyramids through examples from India, Nigeria, and the UK.
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Population Population pyramids
Population pyramids are widely used to show the age structure of an individual country’s population
Stationary pyramids • Reflects an unchanging pattern of fertility and mortality which produces a regularly tapering pyramid
Progressive pyramid • Shows a high birth rate and a high death rate, resulting in a pyramid with a very wide base and a rapidly tapering top
Regressive pyramid • Reflects a declining birth rate and a low mortality rate. It has a narrowing base but relatively straight sides