Population pyramid

A population pyramid is suitable for population data organised by age group and sex. It shows structure, rather than just a population total.

A population pyramid displays age groups vertically, usually with the youngest at the bottom. Males are commonly shown on the left and females on the right. Horizontal bars show the number or percentage in each age group: longer bars represent larger groups.

A population pyramid represents age and sex together. Age groups run vertically, with younger people at the bottom and older people at the top. Horizontal bar widths show how many people, or what percentage of the population, belong to each age group.