The Office of National Statistics (ONS) publish population projections based on mid-year population estimates and a set of assumptions about future fertility, mortality and migration. There is always a degree of uncertainty around population projections because there are many unknown factors. The ONS advises us that –
‘Population projections are not forecasts and, as such, do not attempt to predict the impact of government policies, development aims, changing economic or political circumstances such as Brexit’
For more information on how this data set is produced, click here.. National Population Projections, Background and Methodology
The projections are produced every two years. The latest ones are based on the 2018 mid-year population estimates. We are expecting the next projections to be available in late 2023.
Use the interactive population pyramid below to explore how the size and age structure of the population is projected to change between 2018 and 2043.
Type ‘Leeds’ in the search box and choose another area for comparison. Try locking the outline at 2018 and then moving forwards to 2035. Here are a few things to notice in the Leeds pyramid –
Increase in the population of teenagers.
The well-defined peak at age 71 in 2018 is people born in 1946 after the Second World War.
The more sustained baby boom of the early 1960s can be seen in the big bulge around the 50-60 age group in 2018. This bulge moves into the over 60s age group in 2035.
Population age structure by single year of age and sex for local authorities, counties, regions and England as a whole, mid-2018 to mid-2043