Population pyramid

A population pyramid shows the distribution of age and sex in a population by visualising the proportion of people that fall into each category.

The population pyramids below show the distribution of age and sex in the populations of Buckinghamshire and England for comparison. The data show the year 2020, which is the latest available. Key insights have been labelled on the map with the numbers 1-4 and correspond to the numbers in the table underneath.


There are a significant number of older people in Buckinghamshire aged over 90. At this age, women considerably outnumber men. The same trend occurs in the population pyramid for England.

The spike in Buckinghamshire’s population around age 70-75 represents the increased number of births after the Second World War. The same phenomenon is visible in the population pyramid for England.

There is a high proportion of both men and women in their mid-40s to late-50s in Buckinghamshire. The trend is more pronounced than the profile for England. It is more pronounced in Buckinghamshire because there are relatively fewer younger people proportionally in the county compared to the older generations. 

The population pyramid shows low numbers of 20-30-year-olds in Buckinghamshire, which reflects a lower birth rate between 1990-2000. Younger people could also be moving away from the county to attend university or seek lower-priced housing. The lower ratio of 20-30-year-olds is more pronounced in Buckinghamshire than in England. 

Related Data
Image of the 2021 Census Logo

2021 Census update

The census takes place every ten years. It gives a picture of all the people and households in England and Wales. The first 2021 Census

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Thumbnail of Buckinghamshire Population

Population size

The chart shows the size of the population in Buckinghamshire and how it has changed since 1991 when the current recording methodology began.

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Population Age Composition

Age distribution

The chart shows the age distribution of children (0-17 year-olds), working-age people (18-64 year-olds) and older people (65+ year-olds) in Buckinghamshire, South East England, and

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Components of population change

The charts in this section show the components of population change. The components are natural change (births and deaths); internal UK migration (people moving in

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All Data