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Scheme of work

Popualtion Home

Population growth

Causes of population growth

Changes in population characteristics

Population growth in LEDC's and MEDC's

Demographic Transition Model

Ageing population

Population structure

Consequence of different population structures

Causes of Migration

Migration and population structure

China's 'One child' policy


Case studies of Italy and Iran

Sub-saharan Africa and AIDS

Population and Resources

Sustainable Development

People in Cities

Canning Town and Richmand




Rural settlement

Social welfare

Settlement Characteristics




Population Structure


Economist guide to Population pyramids

This is the proportion of males and females in an area, usually in the form of age distribution. It can be represented by means of a population pyramid.

How to draw a population pyramid using Excel

Now open the second sheet and draw the structures for France and Ghana. Draw a horizontal line at < 15 and > 65. Work out the dependency ratio. Describe the shape

Population pyramid for the UK, 2001

Population pyramids can show:

  • the results of births minus deaths in specific age groups
  • the effects of migration
  • the effects of events such as war, famine and disease
  • an indication of the overall life expectancy of a country
  • the dependency ratio, which is (the % of <15 + % >65)/ % 15 - 64

The UK pyramid will change over time.



Links between the DTM and age - sex structures

Each stage of the DTM can be sketched to show a different shape




Population pyramid for every country

Animated Population pyramid for China


Animated population pyramid for the USA

Animated population pyramid for the UK and Germany

Animated population pyramid comparing China, the US and Europe

Animated population pyramid for Japan