Population

The latest official estimate of the population of the City and County of Swansea is 246,700 (mid-year estimate 2023, Office for National Statistics). 

These are the third annual mid-year population estimates published by ONS since the 2021 Census.  They represent Swansea's estimated population as at 30 June 2023, accounting for births, deaths and estimated migration changes over the year from mid-2022.  The latest estimate indicates overall population growth in Swansea of approx. 4,700 (+1.9%) since mid-2022.  As part of this release, the original estimates for mid-2022 have been revised by ONS to account for updated estimates of international migration. 

Further information on the population estimates for Swansea, including breakdowns by age and sex, components of change and data for other local authorities in Wales, is available in a  briefing note (PDF) [1MB] on this page.

A data file (Excel doc) [53KB] is available including population by single and grouped years, to enable further calculations and analysis.

More detailed information on population and demography is included in the following pages: 

• Recent population trends
• 2021 Census: background, first results, statistics on population and household characteristics
• Small area population estimates (2022)
• Population density, including for small areas in Swansea
• Household estimates (2021 Census)
• Population and household projections (Welsh Government, 2018-based)

If you have further enquiries regarding population statistics in Swansea, please contact us.