The Cambridgeshire Atlas | Population pyramids is functioning as a profile tool displaying data from our latest population estimates and forecasts, at a district level, in a population pyramid. You can use the data explorer to discover the population of Cambridgeshire's districts by gender in five year age bands for the period 2011 to 2036.
Included below is a description of the data used and what the pyramids show. Guidance on using the pyramid is included on the main atlas page.
Population estimates and forecasts
Definition of population:
All people counted as usually resident in the area.
Source: Cambridgeshire Research Group
We produce annual population estimates for parishes, wards and settlements in the administrative area of Cambridgeshire, together with forecasts of the future population of each District.
Population forecasts are dwelling led. This means they reflect planned house building as laid out in local strategic planning documents. While the forecasts are based on the scale of development indicated in local policies, the location and phasing of housing development does not represent the policy of the County Council or district councils. The population forecasts indicate the possible population implications of development and other demographic change; they do not represent a population policy. The population forecasts are based on a series of assumptions and are subject to change in the light of new information.
For more information on the Cambridgeshire population estimates and forecasts, please visit:
Northstowe will be a new town in South Cambridgeshire District. Northstowe will be located between Longstanton and Cottenham ward. House building is expected to start around 2015/16 with some 9,000 to 9,500 units planned.
What do these pyramids show?
• The rise in the number of births in recent years is reflected in the higher numbers of under 5s
• The bulge seen in 40-49 year olds is due to high births in the 1960's
• The higher number of 60-69 year olds are the post war baby boomers
• The county is seeing a significantly ageing population (the extent of this varies by district)
• The pyramid for Cambridge City is different to other districts. This is predominantly due to a high student and young professional population (20-24 years).