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Data Provider: Welsh Government National Statistics Population estimates by local authority and year
[Collapse]Age 1[Filter]
[Collapse]Age 2[Filter]
Age 3[Filter]
Area codes[Filter]
Sex 1[Filter]
YearEstimates relate to 30 June of each year.[Filtered]
[Collapse]AreaLocal authorities in Wales, English regions and UK countries [Filter]
[Collapse]Area 1
[Collapse]Area 2
Area 3
Click here to sortMid-year 1991Click here to sortMid-year 2001Click here to sortMid-year 2011Click here to sortMid-year 2017Click here to sortMid-year 2018Click here to sortMid-year 2019Click here to sortMid-year 2020Click here to sortMid-year 2021
[Collapse]United Kingdom57,438,65859,113,01663,285,14566,040,22966,435,55066,796,80767,081,23467,026,292
United Kingdom[Collapse]Great Britain55,831,36357,424,17861,470,82764,169,39564,553,90964,903,14065,185,72465,121,729
Great Britain[Collapse]England47,875,03549,449,74653,107,16955,619,43055,977,17856,286,96156,550,13856,536,419
EnglandNorth East2,586,9862,540,0902,596,4412,644,7272,657,9092,669,9412,680,7632,646,772
North West6,843,0396,772,9857,055,9617,258,6277,292,0937,341,1967,367,4567,422,295
Yorkshire and the Humber4,936,1004,976,6435,288,2125,450,1305,479,6155,502,9675,526,3505,481,431
East Midlands4,011,4114,189,6224,537,4484,771,6664,804,1494,835,9284,865,5834,880,094
West Midlands5,229,6995,280,7275,608,6675,860,7065,900,7575,934,0375,961,9295,954,240
South East7,629,1868,023,4498,652,7849,080,8259,133,6259,180,1359,217,2659,294,023
South West4,688,2484,943,3645,300,8315,559,3165,599,7355,624,6965,659,1435,712,840
WalesIsle of Anglesey69,12367,80669,91369,79469,96170,04370,44068,944
Neath Port Talbot138,844134,380139,880142,090142,906143,315144,386141,931
Vale of Glamorgan118,053119,277126,679130,690132,165133,587135,295132,534
Rhondda Cynon Taf234,917231,910234,373239,127240,131241,264241,873237,497
Merthyr Tydfil59,59456,20758,85159,95360,18360,32660,42458,866
Blaenau Gwent72,66670,00069,81269,60969,71369,86270,02066,993
[Collapse]Northern Ireland[Collapse]Northern IrelandNorthern Ireland1,607,2951,688,8381,814,3181,870,8341,881,6411,893,6671,895,5101,904,563


General description

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, together with some aggregated age groups.

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 (due to the impact of the COVID-19 pandemic) with the mid-2021 population estimates being rolled forward from mid-2020 using the standard method.

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 Census 2011 (see weblinks).

The data for Scotland from 2001 to 2010 were revised on 18 March 2022 to correct an error in the age distribution over this period (see weblinks).

This data set was revised for 2012 to 2014 on 3 May 2016 to correct an error of the age distribution in the council areas of Scotland.

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


Mid-year population estimates (1991 onwards), by Welsh local authorities, English regions and UK countries, by single year of age and sex

Last update

December 2022 December 2022

Next update

Summer 2023 (provisional)

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

United Kingdom

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

Statistical quality

See weblinks.


Population; UK population; Welsh population; Mid-year population estimates;