Population statistics help explain a property market’s context, but a city council area, a wider region and a current estimate are different measures. This guide brings together three archived population topics and uses explicitly dated Census 2021 figures. They are not estimates of the number of residents in 2026 or forecasts of housing demand.
Birmingham: growth within a defined area
The Office for National Statistics reports that Birmingham’s population rose by 6.7% between the 2011 and 2021 censuses, reaching around 1,144,900. That compared with 6.2% growth across the West Midlands and 6.6% for England over the same period.
The ONS profile records a median age of 34 in Birmingham in 2021, up from 32 in 2011 and below England’s median of 40. These figures describe residents of the local authority area. They do not establish demand for a particular type of home on an individual street.
Manchester: city versus wider area
Manchester City Council’s Census summary puts the city’s 2021 population at 552,000, compared with 503,000 in 2011. People aged 20 to 24 were the largest age group, with 61,900 residents. The council also records 214,700 dwellings.
The City of Manchester is one local authority within Greater Manchester. Using the wider area produces a different boundary and population. Dwellings measure homes, rather than people or households, so those labels should remain attached to figures in a research note.
London: choose the relevant scale
The Greater London Authority’s Census first-release resource provides borough-level information and guidance on interpreting the results. Decide whether a London property question concerns one borough, neighbouring boroughs or the region as a whole before selecting a comparison.
Use demographic context alongside local evidence
Start a research note with the area name, boundary, reference date and source. Keep Census results separate from later population estimates, household projections and property-market measures. Check that a percentage refers to people, homes or households before comparing it with another figure.
Then investigate the property: its location, condition, transport links, tenure and comparable homes. Population growth alone does not demonstrate a rental yield, prove that prices will rise or establish how quickly a home will let.
Sources checked 8 November 2026: https://www.ons.gov.uk/visualisations/censusareachanges/E08000025 https://www.manchester.gov.uk/the-council-and-democracy/statistics-and-intelligence/census-results-2021 https://data.london.gov.uk/dataset/2021-census-first-release-2n1y8