Mid-year population estimates - 2024 (ONS)

NOTE: These data have been superseded by the 2025 Mid-year population estimates which were released on 29 July 2026. This page is being retained for reference purposes only.

The mid-year estimates are the ‘official’ source of data about population and relate to past trends. They provide an estimate of the population based on known data such as births, deaths, and estimates of migration flows. ONS released the mid-2024 estimates on the 30 July 2025.

The estimates can be accessed on the ONS website at the following links which provide:

• the raw data in excel for all local authorities

• an interactive excel tool - which allows you to choose a local authority and view data tables for that area

• an ONS interactive briefing which summarises the data for England and Wales and includes the ability to choose a particular local authority to view data about.

For analysis of these data please see the research briefing, also available on open data: Population change in Brent | Brent Open Data.