Population estimates by local authority, year, sex and age

Standard shorthand is used in this table: [t] = total.

Data values	Data description	Year	Age	Sex	Area
17	Population	Mid-year 2003	Age 89	Male	Merthyr Tydfil
18	Population	Mid-year 2006	Age 89	Male	Merthyr Tydfil
19	Population	Mid-year 2007	Age 89	Male	Merthyr Tydfil
19	Population	Mid-year 2005	Age 89	Male	Blaenau Gwent
22	Population	Mid-year 2004	Age 89	Male	Merthyr Tydfil
22	Population	Mid-year 2001	Age 89	Male	Merthyr Tydfil
22	Population	Mid-year 2002	Age 88	Male	Merthyr Tydfil
23	Population	Mid-year 2002	Age 89	Male	Blaenau Gwent
23	Population	Mid-year 2005	Age 89	Male	Merthyr Tydfil
24	Population	Mid-year 2005	Age 88	Male	Merthyr Tydfil
24	Population	Mid-year 2002	Age 89	Male	Merthyr Tydfil
24	Population	Mid-year 2006	Age 89	Male	Blaenau Gwent
25	Population	Mid-year 2003	Age 88	Male	Merthyr Tydfil
26	Population	Mid-year 2004	Age 89	Male	Blaenau Gwent
26	Population	Mid-year 2006	Age 88	Male	Merthyr Tydfil
27	Population	Mid-year 2015	Age 89	Male	Merthyr Tydfil
27	Population	Mid-year 2001	Age 88	Male	Merthyr Tydfil
28	Population	Mid-year 2001	Age 89	Male	Torfaen
29	Population	Mid-year 2001	Age 88	Male	Blaenau Gwent
29	Population	Mid-year 2001	Age 87	Male	Merthyr Tydfil
29	Population	Mid-year 2004	Age 87	Male	Merthyr Tydfil
29	Population	Mid-year 2005	Age 87	Male	Merthyr Tydfil
30	Population	Mid-year 2002	Age 87	Male	Merthyr Tydfil
31	Population	Mid-year 2016	Age 89	Male	Merthyr Tydfil
31	Population	Mid-year 2004	Age 88	Male	Blaenau Gwent
31	Population	Mid-year 2004	Age 88	Male	Merthyr Tydfil
31	Population	Mid-year 2003	Age 89	Male	Blaenau Gwent
31	Population	Mid-year 2004	Age 89	Male	Ceredigion
32	Population	Mid-year 2011	Age 89	Male	Merthyr Tydfil
33	Population	Mid-year 2013	Age 89	Male	Merthyr Tydfil
33	Population	Mid-year 2008	Age 89	Male	Merthyr Tydfil
34	Population	Mid-year 2001	Age 89	Male	Blaenau Gwent
34	Population	Mid-year 2010	Age 89	Male	Merthyr Tydfil
34	Population	Mid-year 2007	Age 88	Male	Merthyr Tydfil
35	Population	Mid-year 2011	Age 89	Male	Blaenau Gwent
35	Population	Mid-year 2014	Age 88	Male	Merthyr Tydfil
36	Population	Mid-year 2015	Age 89	Male	Blaenau Gwent
36	Population	Mid-year 2003	Age 87	Male	Merthyr Tydfil
36	Population	Mid-year 2012	Age 88	Male	Merthyr Tydfil
36	Population	Mid-year 2005	Age 88	Male	Blaenau Gwent
37	Population	Mid-year 2018	Age 89	Male	Blaenau Gwent
37	Population	Mid-year 2004	Age 86	Male	Merthyr Tydfil
38	Population	Mid-year 2010	Age 89	Male	Blaenau Gwent
38	Population	Mid-year 2014	Age 89	Male	Blaenau Gwent
38	Population	Mid-year 2005	Age 89	Male	Isle of Anglesey
39	Population	Mid-year 2004	Age 89	Male	Isle of Anglesey
39	Population	Mid-year 2003	Age 86	Male	Merthyr Tydfil
39	Population	Mid-year 2001	Age 86	Male	Merthyr Tydfil
39	Population	Mid-year 2009	Age 89	Male	Blaenau Gwent
39	Population	Mid-year 2015	Age 88	Male	Merthyr Tydfil
39	Population	Mid-year 2007	Age 89	Male	Blaenau Gwent
40	Population	Mid-year 2002	Age 89	Male	Torfaen
40	Population	Mid-year 2002	Age 88	Male	Blaenau Gwent
40	Population	Mid-year 2017	Age 89	Male	Blaenau Gwent
40	Population	Mid-year 2020	Age 89	Male	Blaenau Gwent
40	Population	Mid-year 2003	Age 88	Male	Blaenau Gwent
41	Population	Mid-year 2005	Age 89	Male	Ceredigion
41	Population	Mid-year 2006	Age 87	Male	Merthyr Tydfil
41	Population	Mid-year 2009	Age 88	Male	Blaenau Gwent
41	Population	Mid-year 2014	Age 89	Male	Merthyr Tydfil
41	Population	Mid-year 2006	Age 89	Male	Torfaen
42	Population	Mid-year 2010	Age 88	Male	Merthyr Tydfil
42	Population	Mid-year 2007	Age 89	Male	Ceredigion
42	Population	Mid-year 2009	Age 88	Male	Merthyr Tydfil
42	Population	Mid-year 2003	Age 87	Male	Blaenau Gwent
42	Population	Mid-year 2003	Age 89	Male	Isle of Anglesey
42	Population	Mid-year 2023	Age 89	Male	Blaenau Gwent
43	Population	Mid-year 2003	Age 88	Male	Ceredigion
43	Population	Mid-year 2020	Age 89	Male	Merthyr Tydfil
43	Population	Mid-year 2023	Age 89	Male	Merthyr Tydfil
43	Population	Mid-year 2013	Age 87	Male	Merthyr Tydfil
43	Population	Mid-year 2009	Age 89	Male	Merthyr Tydfil
43	Population	Mid-year 2002	Age 86	Male	Merthyr Tydfil
44	Population	Mid-year 2022	Age 89	Male	Merthyr Tydfil
44	Population	Mid-year 2002	Age 89	Male	Ceredigion
44	Population	Mid-year 2012	Age 89	Male	Merthyr Tydfil
44	Population	Mid-year 2001	Age 87	Male	Blaenau Gwent
44	Population	Mid-year 2008	Age 89	Male	Blaenau Gwent
45	Population	Mid-year 2004	Age 88	Male	Isle of Anglesey
45	Population	Mid-year 2003	Age 85	Male	Merthyr Tydfil
45	Population	Mid-year 2006	Age 88	Male	Blaenau Gwent
46	Population	Mid-year 2014	Age 87	Male	Merthyr Tydfil
46	Population	Mid-year 2013	Age 88	Male	Merthyr Tydfil
46	Population	Mid-year 2013	Age 89	Male	Blaenau Gwent
46	Population	Mid-year 2002	Age 85	Male	Merthyr Tydfil
46	Population	Mid-year 2008	Age 88	Male	Merthyr Tydfil
46	Population	Mid-year 2006	Age 89	Male	Monmouthshire
46	Population	Mid-year 2011	Age 87	Male	Merthyr Tydfil
46	Population	Mid-year 2012	Age 89	Male	Blaenau Gwent
46	Population	Mid-year 2003	Age 89	Male	Ceredigion
46	Population	Mid-year 2004	Age 87	Male	Blaenau Gwent
46	Population	Mid-year 2017	Age 89	Male	Merthyr Tydfil
47	Population	Mid-year 1992	Age 84	Male	Merthyr Tydfil
47	Population	Mid-year 2001	Age 88	Male	Torfaen
47	Population	Mid-year 2012	Age 89	Male	Isle of Anglesey
47	Population	Mid-year 2004	Age 88	Male	Ceredigion
47	Population	Mid-year 1991	Age 84	Male	Merthyr Tydfil
47	Population	Mid-year 2016	Age 89	Male	Blaenau Gwent
47	Population	Mid-year 2008	Age 87	Male	Merthyr Tydfil
48	Population	Mid-year 2002	Age 86	Male	Blaenau Gwent

Showing 1 to 100 of 329,121 rows

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Main information

• Most recent update: 25 September 2025
• Next update expected: July 2026
• Designation: Accredited official statistics
• Data provider: Office for National Statistics (ONS)
• Data source: Mid-year population estimates

Data notes

Overview

• Summary of dataset and variables:

  This dataset provides population estimates for the local authorities in Wales, the English regions and the UK countries for the period from 1991 onwards by sex and single year of age.

  It should be noted that for mid-2020 there are some definitional changes (particularly affecting the migration components) compared with mid-2019 population estimates data and it is advised users read the Quality and Methodology Information section on the Office for National Statistics website.

  For Wales, England and Northern Ireland, the mid-2021 population estimates are the first population estimates to be based on the 2021 censuses for these countries. For Scotland, the census was moved to 2022. The mid-2022 population estimates are the first population estimates to be based on the 2022 Census for Scotland.

  On 23 November 2023, the data set from 2012 to 2020 for Wales and England were rebased to be consistent with the results of Census 2021. Northern Ireland published rebased 2012 to 2020 data on 29 June 2023. Scotland published rebased 2012 to 2020 data on 9 July 2024.

  On 15 July 2024 estimates for mid-2022 were revised by the ONS to account for updated estimates of international migration for Wales and England.

  On 30 July 2025 estimates for mid-2022 and mid-2023 were revised by the ONS to account for updated estimates of international migration for Wales and England.

  Internal migration estimates for mid-2023 have been produced using a different method to previous years, following a change to the variables available in the Higher Education Statistics Agency data.

• Data collection or calculation:

  The Office for National Statistics (ONS) publish mid-year population estimates for Wales and England as a whole. Further information on how the data are calculated can be found on the ONS' website. A link can be found in the weblink section.

• Statistical quality:

  The Office for National Statistics (ONS) publish mid-year population estimates for Wales and England as a whole. Further information on statistical quality can be found on the ONS' website. A link can be found in the weblink section.

• Related reports:
  • Mid-year population estimates for Wales bulletin, Welsh Government
  • Mid-year population estimates bulletin, ONS
  • Quality and Methodology Information, ONS
  • Mid-year population estimates for Scotland, NRS
  • Mid-year population estimates for Northern Ireland, NISRA

Published by

• Organisation: Welsh Government
• Contact email: stats.popcensus@gov.wales

Metadata

The metadata for this dataset is not included when you download the data. You can download this separately. This contains all the information from the 'About this dataset' tab.