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
11,753 [t]	Population	Mid-year 2023	Age 26	Male	Northern Ireland
12,116 [t]	Population	Mid-year 2023	Age 32	Male	Northern Ireland
19,881 [t]	Population	Mid-year 2023	Age 21	Persons	Northern Ireland
23,373 [t]	Population	Mid-year 2023	Age 26	Persons	Northern Ireland
11,878 [t]	Population	Mid-year 2023	Age 29	Female	Northern Ireland
24,892 [t]	Population	Mid-year 2023	Age 32	Persons	Northern Ireland
23,684 [t]	Population	Mid-year 2023	Age 18	Persons	Northern Ireland
9,666 [t]	Population	Mid-year 2023	Age 20	Female	Northern Ireland
20,337 [t]	Population	Mid-year 2023	Age 23	Persons	Northern Ireland
11,446 [t]	Population	Mid-year 2023	Age 25	Female	Northern Ireland
23,084 [t]	Population	Mid-year 2023	Age 28	Persons	Northern Ireland
11,583 [t]	Population	Mid-year 2023	Age 29	Male	Northern Ireland
11,718 [t]	Population	Mid-year 2023	Age 30	Male	Northern Ireland
12,558 [t]	Population	Mid-year 2023	Age 31	Female	Northern Ireland
11,953 [t]	Population	Mid-year 2023	Age 16	Female	Northern Ireland
11,585 [t]	Population	Mid-year 2023	Age 17	Female	Northern Ireland
11,810 [t]	Population	Mid-year 2023	Age 19	Male	Northern Ireland
11,009 [t]	Population	Mid-year 2023	Age 20	Male	Northern Ireland
10,380 [t]	Population	Mid-year 2023	Age 21	Male	Northern Ireland
9,641 [t]	Population	Mid-year 2023	Age 22	Female	Northern Ireland
11,431 [t]	Population	Mid-year 2023	Age 24	Male	Northern Ireland
11,805 [t]	Population	Mid-year 2023	Age 25	Male	Northern Ireland
22,966 [t]	Population	Mid-year 2023	Age 27	Persons	Northern Ireland
11,234 [t]	Population	Mid-year 2023	Age 27	Female	Northern Ireland
11,743 [t]	Population	Mid-year 2023	Age 28	Male	Northern Ireland
23,461 [t]	Population	Mid-year 2023	Age 29	Persons	Northern Ireland
12,672 [t]	Population	Mid-year 2023	Age 15	Female	Northern Ireland
23,710 [t]	Population	Mid-year 2023	Age 30	Persons	Northern Ireland
24,555 [t]	Population	Mid-year 2023	Age 31	Persons	Northern Ireland
11,997 [t]	Population	Mid-year 2023	Age 31	Male	Northern Ireland
26,242 [t]	Population	Mid-year 2023	Age 12	Persons	Northern Ireland
12,706 [t]	Population	Mid-year 2023	Age 16	Male	Northern Ireland
23,744 [t]	Population	Mid-year 2023	Age 17	Persons	Northern Ireland
12,159 [t]	Population	Mid-year 2023	Age 17	Male	Northern Ireland
12,145 [t]	Population	Mid-year 2023	Age 18	Male	Northern Ireland
22,533 [t]	Population	Mid-year 2023	Age 19	Persons	Northern Ireland
12,722 [t]	Population	Mid-year 2023	Age 11	Female	Northern Ireland
20,675 [t]	Population	Mid-year 2023	Age 20	Persons	Northern Ireland
12,484 [t]	Population	Mid-year 2023	Age 6	Male	Northern Ireland
12,563 [t]	Population	Mid-year 2023	Age 13	Female	Northern Ireland
20,027 [t]	Population	Mid-year 2023	Age 22	Persons	Northern Ireland
10,386 [t]	Population	Mid-year 2023	Age 22	Male	Northern Ireland
10,581 [t]	Population	Mid-year 2023	Age 23	Male	Northern Ireland
22,111 [t]	Population	Mid-year 2023	Age 24	Persons	Northern Ireland
13,161 [t]	Population	Mid-year 2023	Age 13	Male	Northern Ireland
23,251 [t]	Population	Mid-year 2023	Age 25	Persons	Northern Ireland
13,257 [t]	Population	Mid-year 2023	Age 14	Male	Northern Ireland
11,620 [t]	Population	Mid-year 2023	Age 26	Female	Northern Ireland
12,129 [t]	Population	Mid-year 2023	Age 7	Female	Northern Ireland
11,732 [t]	Population	Mid-year 2023	Age 27	Male	Northern Ireland
12,682 [t]	Population	Mid-year 2023	Age 14	Female	Northern Ireland
25,024 [t]	Population	Mid-year 2023	Age 8	Persons	Northern Ireland
11,341 [t]	Population	Mid-year 2023	Age 28	Female	Northern Ireland
12,770 [t]	Population	Mid-year 2023	Age 8	Male	Northern Ireland
24,918 [t]	Population	Mid-year 2023	Age 9	Persons	Northern Ireland
12,912 [t]	Population	Mid-year 2023	Age 10	Male	Northern Ireland
12,739 [t]	Population	Mid-year 2023	Age 9	Male	Northern Ireland
26,000 [t]	Population	Mid-year 2023	Age 15	Persons	Northern Ireland
11,992 [t]	Population	Mid-year 2023	Age 30	Female	Northern Ireland
12,179 [t]	Population	Mid-year 2023	Age 9	Female	Northern Ireland
13,328 [t]	Population	Mid-year 2023	Age 15	Male	Northern Ireland
25,363 [t]	Population	Mid-year 2023	Age 10	Persons	Northern Ireland
26,118 [t]	Population	Mid-year 2023	Age 11	Persons	Northern Ireland
1,920,382 [t]	Population	Mid-year 2023	All Ages	Persons	Northern Ireland
24,659 [t]	Population	Mid-year 2023	Age 16	Persons	Northern Ireland
20,184 [t]	Population	Mid-year 2023	Age 0	Persons	Northern Ireland
10,375 [t]	Population	Mid-year 2023	Age 0	Male	Northern Ireland
21,896 [t]	Population	Mid-year 2023	Age 1	Persons	Northern Ireland
9,809 [t]	Population	Mid-year 2023	Age 0	Female	Northern Ireland
12,451 [t]	Population	Mid-year 2023	Age 10	Female	Northern Ireland
13,396 [t]	Population	Mid-year 2023	Age 11	Male	Northern Ireland
11,119 [t]	Population	Mid-year 2023	Age 1	Male	Northern Ireland
11,539 [t]	Population	Mid-year 2023	Age 18	Female	Northern Ireland
10,777 [t]	Population	Mid-year 2023	Age 1	Female	Northern Ireland
21,924 [t]	Population	Mid-year 2023	Age 2	Persons	Northern Ireland
10,569 [t]	Population	Mid-year 2023	Age 2	Female	Northern Ireland
11,355 [t]	Population	Mid-year 2023	Age 2	Male	Northern Ireland
10,723 [t]	Population	Mid-year 2023	Age 19	Female	Northern Ireland
22,591 [t]	Population	Mid-year 2023	Age 3	Persons	Northern Ireland
10,968 [t]	Population	Mid-year 2023	Age 3	Female	Northern Ireland
11,623 [t]	Population	Mid-year 2023	Age 3	Male	Northern Ireland
12,895 [t]	Population	Mid-year 2023	Age 12	Female	Northern Ireland
23,311 [t]	Population	Mid-year 2023	Age 4	Persons	Northern Ireland
9,501 [t]	Population	Mid-year 2023	Age 21	Female	Northern Ireland
11,960 [t]	Population	Mid-year 2023	Age 4	Male	Northern Ireland
13,347 [t]	Population	Mid-year 2023	Age 12	Male	Northern Ireland
11,351 [t]	Population	Mid-year 2023	Age 4	Female	Northern Ireland
12,020 [t]	Population	Mid-year 2023	Age 5	Male	Northern Ireland
23,658 [t]	Population	Mid-year 2023	Age 5	Persons	Northern Ireland
9,756 [t]	Population	Mid-year 2023	Age 23	Female	Northern Ireland
11,638 [t]	Population	Mid-year 2023	Age 5	Female	Northern Ireland
25,724 [t]	Population	Mid-year 2023	Age 13	Persons	Northern Ireland
24,273 [t]	Population	Mid-year 2023	Age 6	Persons	Northern Ireland
10,680 [t]	Population	Mid-year 2023	Age 24	Female	Northern Ireland
25,939 [t]	Population	Mid-year 2023	Age 14	Persons	Northern Ireland
11,789 [t]	Population	Mid-year 2023	Age 6	Female	Northern Ireland
12,254 [t]	Population	Mid-year 2023	Age 8	Female	Northern Ireland
25,054 [t]	Population	Mid-year 2023	Age 7	Persons	Northern Ireland
12,925 [t]	Population	Mid-year 2023	Age 7	Male	Northern Ireland
12,776 [t]	Population	Mid-year 2023	Age 32	Female	Northern Ireland

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.