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As the demand increases for statistics and data to measure the impact of the COVID-19 pandemic, we have had to change our data gathering and release practices, focussing efforts on priority analysis and statistics.

Data Provider: Welsh Government National Statistics Population estimates by local authority, region and gender
[Collapse]Age 1[Filter]
[Collapse]Age 2[Filter]
Age 3[Filter]
Area Codes[Filter]
Gender 1
[Collapse]Area 1
Area 2
[Collapse]PersonsClick here to sortPersons
Click here to sortMaleClick here to sortFemale
Wales[Collapse]North Wales1,034,6801,059,5322,094,212
North WalesIsle of Anglesey103,338106,460209,798
[Collapse]Mid and South West Wales1,344,8711,376,9142,721,785
Mid and South West WalesPowys196,705200,692397,397
Neath Port Talbot210,974217,337428,311
[Collapse]South East Wales2,262,6362,338,0424,600,678
South East WalesBridgend216,222219,991436,213
Vale of Glamorgan192,443203,999396,442
Rhondda Cynon Taf353,343367,179720,522
Merthyr Tydfil88,57191,891180,462
Blaenau Gwent103,128106,056209,184


Mid-year population estimates (1991 onwards), by Welsh local authorities, for single year of age and gender

Last update
June 2020 June 2020

Next update
June 2021

Publishing organisation
Welsh Government

Source 1
Mid-year population estimates, Office for National Statistics

Contact email

National Statistics

Lowest level of geographical disaggregation
Local authorities

Geographical coverage

Languages covered
English and Welsh

Data licensing
You may use and re-use this data free of charge in any format or medium, under the terms of the Open Government License - see

General description
This dataset provides population estimates for the local authorities in Wales, for the period from 1991 onwards by gender and single year of age, together with some aggregated age groups.

This material is Crown Copyright and may be re-used (not including logos) free of charge in any format or medium, under the terms of the Open Government Licence.

Data collection and calculation
See weblinks

Frequency of publication

Data reference periods
Data are produced and reported annually and relate to the 30 June of each year from 1991 onwards.

Users, uses and context
The data presented here are used by central government departments and local authorities for a range of purposes including planning and monitoring of services and as denominators for the calculation of various rates and indicators.

Rounding applied
Data are provided on an unrounded basis although the Office for National Statistics advises that any results presented from these data are rounded to the nearest 100 where practical.

Revisions information
The data presented here reflect changes made to population estimates from 2001 to 2010 in re-basing the data to be consistent with the results of the 2011 Census (see weblinks).

Mid-2012 to mid-2016 subnational population estimates for England and Wales were revised on the 22 March 2018, following methodological improvements (see weblinks).

To help with analysis of the impacts of the coronavirus pandemic on the UK population, the ONS has published a provisional set of population estimates for mid-2019. This report is by necessity a subset of the information they regularly publish in June, focusing primarily on the size, age structure and geography of the UK population.

Information of the components (drivers) of population change in each local area will be published in June.

Any changes to the population estimates between now and June are likely to be minor, but it is possible that the estimates released in June 2020 will differ slightly from those published here.

Statistical quality
See weblinks.

Population; Welsh Population; Mid-year population estimates;