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Welsh Government
Data Provider: Welsh Government National Statistics Components of population change, by time period and component
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[Collapse]Local authorityLocal authorities in Wales.[Filtered]
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Local authority 1[Filter]
Area Code[Filter]
Measure1
[Collapse]ComponentComponent of population change during the period, together with the start and end of period populations.[Filter]
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[Collapse]Component 1
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[Collapse]Component 2
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Component 3
PeriodTime period running from 30 June in the first year to 30 June in the following year.[Filter]
[Collapse]Population at end of periodThis is calculated by adding natural change, net migration and other unattributable change during the period to the population at the start of the period. It equates to the Registrar General\'s estimates of resident population at 30 June at the end of the period.Click here to sortPopulation at end of periodThis is calculated by adding natural change, net migration and other unattributable change during the period to the population at the start of the period. It equates to the Registrar General\'s estimates of resident population at 30 June at the end of the period.
[Expand]Click here to sortPopulation at start of periodRegistrar General\'s estimates of resident population at 30 June at the start of the period[Collapse]Natural change during periodThis is calculated as births during the period less deaths during the period.Click here to sortNatural change during periodThis is calculated as births during the period less deaths during the period.[Collapse]Net migration and other changes during periodInward migration (inflow) less outward migration (outflow) from/to outside the area; includes changes to the size of armed forces and prison populations and other, small, adjustmentsClick here to sortNet migration and other changes during periodInward migration (inflow) less outward migration (outflow) from/to outside the area; includes changes to the size of armed forces and prison populations and other, small, adjustments
[Expand]Click here to sortBirths during periodNumber of live births during period[Expand]Click here to sortDeaths during periodNumber of deaths during period, not including still births[Collapse]Net internal migration during periodInward internal migration (inflow) less outward internal migration (outflow) from/to outside the areaClick here to sortNet internal migration during periodInward internal migration (inflow) less outward internal migration (outflow) from/to outside the area[Collapse]Net international migration during periodInward international migration (inflow) less outward international migration (outflow) from/to outside the areaClick here to sortNet international migration during periodInward international migration (inflow) less outward international migration (outflow) from/to outside the area[Expand]Click here to sortOther changes, including unattributable changes, during periodThese include changes to the size of armed forces and prison populations and other, small, adjustments. Unattributable elements relate to any potential inaccuracy around components arising in the period between Censuses. For more information please see the document http://www.ons.gov.uk/ons/rel/pop-estimate/population-estimates-for-england-and-wales/mid-2002-to-mid-2010-revised--subnational-/index.html.
Click here to sortInward internal migration (Inflow)Click here to sortOutward internal migration (Outflow)Click here to sortInward international migration (Inflow)Click here to sortOutward international migration(Outflow)
1991 to 19922,872,99838,14433,6114,533.The data item is not applicable.The data item is not applicable..|The data item is not available.The data item is not applicable.The data item is not applicable..|The data item is not available..|The data item is not available1432,877,674
1992 to 19932,877,67436,66434,1052,559.The data item is not applicable.The data item is not applicable..|The data item is not available.The data item is not applicable.The data item is not applicable..|The data item is not available..|The data item is not available3,3252,883,558
1993 to 19942,883,55836,20335,648555.The data item is not applicable.The data item is not applicable..|The data item is not available.The data item is not applicable.The data item is not applicable..|The data item is not available..|The data item is not available3,3342,887,447
1994 to 19952,887,44734,81034,354456.The data item is not applicable.The data item is not applicable..|The data item is not available.The data item is not applicable.The data item is not applicable..|The data item is not available..|The data item is not available6142,888,517
1995 to 19962,888,51733,97135,314-1,343.The data item is not applicable.The data item is not applicable..|The data item is not available.The data item is not applicable.The data item is not applicable..|The data item is not available..|The data item is not available4,1302,891,304
1996 to 19972,891,30435,47435,135339.The data item is not applicable.The data item is not applicable..|The data item is not available.The data item is not applicable.The data item is not applicable..|The data item is not available..|The data item is not available3,2282,894,871
1997 to 19982,894,87133,86733,664203.The data item is not applicable.The data item is not applicable..|The data item is not available.The data item is not applicable.The data item is not applicable..|The data item is not available..|The data item is not available4,4472,899,521
1998 to 19992,899,52132,93034,972-2,042.The data item is not applicable.The data item is not applicable..|The data item is not available.The data item is not applicable.The data item is not applicable..|The data item is not available..|The data item is not available3,1202,900,599
1999 to 20002,900,59931,48434,310-2,826.The data item is not applicable.The data item is not applicable..|The data item is not available.The data item is not applicable.The data item is not applicable..|The data item is not available..|The data item is not available9,0972,906,870
2000 to 20012,906,87031,03332,958-1,925.The data item is not applicable.The data item is not applicable..|The data item is not available.The data item is not applicable.The data item is not applicable..|The data item is not available..|The data item is not available5,2872,910,232
2001 to 20022,910,23230,06032,780-2,720.The data item is not applicable.The data item is not applicable9,81110,6827,6743,0082,54515,3642,922,876
2002 to 20032,922,87630,81733,481-2,664.The data item is not applicable.The data item is not applicable14,41111,26610,8194472,65117,5092,937,721
2003 to 20042,937,72131,69533,003-1,308.The data item is not applicable.The data item is not applicable13,52910,4707,9102,5604,92021,0092,957,422
2004 to 20052,957,42232,50032,815-315.The data item is not applicable.The data item is not applicable7,30513,36911,4461,9232,97412,2022,969,309
2005 to 20062,969,30933,21431,3321,882.The data item is not applicable.The data item is not applicable6,38212,7827,3255,4572,63814,4772,985,668
2006 to 20072,985,66833,79131,4942,297.The data item is not applicable.The data item is not applicable7,14317,1649,4957,6693,52218,3343,006,299
2007 to 20083,006,29935,46831,4753,993.The data item is not applicable.The data item is not applicable5,29517,37810,2707,1083,17215,5753,025,867
2008 to 20093,025,86734,99631,6813,315.The data item is not applicable.The data item is not applicable57016,67410,7415,9333,1879,6903,038,872
2009 to 20103,038,87235,25830,6184,640.The data item is not applicable.The data item is not applicable2,76114,67014,4472233,4756,4593,049,971
2010 to 20113,049,97136,05230,6995,353.The data item is not applicable.The data item is not applicable2,66113,24111,2322,0093,7648,4343,063,758
2011 to 20123,063,75835,51630,9074,60966,60663,2403,36617,03612,6264,410-5,2152,5613,070,928
2012 to 20133,070,92834,40432,7621,64263,45265,328-1,87617,54411,7065,838-5,474-1,5123,071,058
2013 to 20143,071,05833,59630,4703,12668,10568,212-10717,77612,5715,205-5,494-3963,073,788
2014 to 20153,073,78833,46333,649-18669,25370,487-1,23418,43712,1306,307-5,936-8633,072,739
2015 to 20163,072,73933,28532,70757872,09469,8352,25919,97712,2427,735-6,1463,8483,077,165
2016 to 20173,077,16532,37133,363-99272,52566,7385,78717,57212,7044,868-5,4625,1933,081,366
2017 to 20183,081,36631,85334,651-2,79872,58665,6746,91217,45013,6873,763-5,4035,2723,083,840
2018 to 20193,083,84030,46332,897-2,43473,17765,7867,39119,23814,2754,963-6,0286,3263,087,732
2019 to 20203,087,73229,43936,359-6,92085,15358,87226,28117,76114,6613,100-5,71023,6713,104,483
2020 to 20213,104,48327,97236,166-8,19485,47876,0649,41414,5919,1845,407-5,4779,3443,105,633
2021 to 20223,105,63329,10135,680-6,57978,94768,29510,65234,24811,35822,8908033,6223,132,676
2022 to 20233,132,67627,64637,133-9,487..|The data item is not available..|The data item is not available17,55936,29312,74023,55310341,2153,164,404

Metadata

Title

Components of population change (1991 onwards), by Welsh local authorities

Last update

July 2024 July 2024

Next update

Summer 2025

Publishing organisation

Welsh Government

Source 1

Mid-year population estimates, Office for National Statistics

Contact email

stats.popcensus@gov.wales

Designation

National Statistics

Lowest level of geographical disaggregation

Local authorities

Geographical coverage

Wales

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 http://www.nationalarchives.gov.uk/doc/open-government-licence

General description

This dataset provides the components of change within the official population estimates for the local authorities in Wales. These estimates are consistent with the results of Census 2011 and show the contributions that natural change (births less deaths); different elements of migration and other smaller adjustments make to the changing population estimates in each local authority over the period since 1991.

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

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 (HESA) data. This has resulted in Wales level data for internal inward and internal outward migration being unavailable for mid-2023.

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

Annual

Data reference periods

Data are produced and reported annually and relate to the change between 30 June of successive years 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.

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).

This data set consists of inflow and outflow for internal and international migration from 2012-13 onwards. This additional data replaces the international migration flow data set (POPU5022), because the ONS judged that the data is a more accurate source of long-term migration at a regional level.

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

Revisions were made in July 2019 to two components of change, ‘Net international migration during the period’ and ‘Other changes including unattributable changes during period’, for the period 2001-02 to 2010-11. This was due to historical data not having been updated as a result of revisions following the publication of data from Census 2011.

On 23 November 2023, the data set from 2012 to 2020 for Wales and England was rebased to be consistent with the results of Census 2021.

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.

Statistical quality

See weblinks

Keywords

Population; births; deaths; natural change; international migration; internal migration; components of change

Name

Popu1001