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Data Provider: Welsh Government National Statistics Population projections by local authority and year
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[Collapse]Age[Filtered]
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Gender 1[Filter]
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[Collapse]Wales3,138,6313,146,1573,154,0913,162,1173,170,0563,177,9673,185,8293,193,6093,201,2653,208,7013,215,8443,222,6703,229,2973,235,9133,242,3433,248,5583,254,6193,260,6603,266,6713,272,6263,278,4373,284,2953,290,3123,296,4653,302,7203,309,154
Wales[Collapse]North Wales698,369699,218700,147701,149702,154703,108704,010704,849705,640706,356707,037707,666708,278708,915709,574710,269710,999711,753712,535713,347714,176715,026715,913716,841717,806718,830
North WalesIsle of Anglesey69,96169,91969,89669,87969,86469,84269,82669,80069,76769,72269,68569,64869,60969,56669,52969,50369,49269,47669,46869,46769,47569,48569,49969,51869,54369,575
Gwynedd124,178124,418124,670124,936125,220125,539125,897126,288126,695127,109127,495127,871128,250128,625128,974129,292129,601129,914130,219130,506130,766131,035131,314131,603131,897132,200
Conwy117,181117,417117,691118,001118,320118,625118,917119,194119,472119,737119,986120,230120,470120,706120,957121,216121,468121,722121,978122,235122,492122,742122,990123,241123,492123,749
Denbighshire95,33095,49095,65595,83696,02196,19896,35896,50096,63696,75096,86596,97497,07397,18297,29197,40497,52697,64997,78097,92298,06898,21598,36598,52098,68098,848
Flintshire155,593156,019156,444156,862157,264157,626157,940158,224158,459158,663158,864159,034159,201159,366159,541159,732159,933160,130160,336160,556160,785161,018161,258161,505161,760162,030
Wrexham136,126135,955135,791135,635135,466135,279135,072134,844134,611134,375134,142133,908133,676133,469133,282133,122132,979132,862132,754132,661132,590132,532132,486132,454132,434132,429
[Collapse]Mid and South West Wales907,434908,545909,974911,564913,238915,005916,846918,744920,667922,577924,429926,182927,876929,561931,160932,671934,093935,505936,896938,247939,539940,860942,247943,702945,216946,815
Mid and South West WalesPowys132,447132,394132,421132,475132,538132,597132,653132,710132,765132,797132,836132,880132,905132,956133,009133,080133,147133,211133,280133,354133,434133,516133,602133,697133,804133,927
Ceredigion72,99272,36571,89771,49171,15170,90970,75970,67470,62970,61670,58470,53670,49070,44570,35170,20470,04369,89269,73169,54469,33869,15769,00968,89568,80668,745
Pembrokeshire125,055125,350125,650125,989126,301126,580126,838127,073127,297127,486127,672127,840127,992128,139128,307128,482128,648128,811128,973129,143129,318129,488129,658129,832130,009130,196
Carmarthenshire187,568188,031188,517189,021189,525190,022190,493190,935191,342191,731192,118192,467192,787193,104193,432193,765194,091194,404194,725195,060195,406195,751196,106196,468196,837197,218
Swansea246,466247,217247,912248,586249,275250,004250,796251,648252,545253,472254,379255,263256,146257,020257,835258,579259,274259,967260,640261,267261,837262,410262,999263,601264,213264,840
Neath Port Talbot142,906143,188143,577144,003144,447144,894145,308145,703146,090146,475146,840147,195147,555147,897148,225148,561148,890149,219149,547149,879150,206150,539150,874151,210151,548151,889
[Collapse]South East Wales1,532,8281,538,3941,543,9701,549,4041,554,6641,559,8531,564,9721,570,0161,574,9571,579,7671,584,3791,588,8221,593,1431,597,4371,601,6081,605,6171,609,5261,613,4021,617,2401,621,0331,624,7221,628,4101,632,1521,635,9221,639,6981,643,508
South East WalesBridgend144,876145,663146,417147,165147,892148,576149,234149,852150,447151,020151,585152,112152,590153,057153,535154,006154,493154,961155,439155,920156,395156,861157,328157,793158,255158,718
Vale of Glamorgan132,165132,987133,864134,749135,617136,448137,233137,999138,713139,384140,044140,671141,277141,853142,433142,996143,524144,038144,536145,040145,544146,036146,527147,013147,501147,987
Cardiff364,248365,317366,311367,190368,090369,122370,283371,571372,944374,379375,733377,033378,331379,637380,800381,787382,685383,572384,384385,070385,635386,225386,861387,523388,195388,890
Rhondda Cynon Taf240,131240,809241,492242,158242,784243,406243,993244,556245,115245,645246,148246,641247,122247,605248,098248,598249,111249,637250,182250,738251,293251,850252,418252,991253,564254,145
Merthyr Tydfil60,18360,37660,56760,75160,91961,08061,23261,37161,49861,61361,72661,84061,95462,06462,17662,29362,40862,52662,64562,76862,89663,02563,15463,28263,41063,538
Caerphilly181,019181,303181,585181,846182,060182,236182,398182,527182,637182,722182,794182,856182,923183,006183,102183,214183,339183,466183,617183,786183,965184,149184,340184,538184,740184,948
Blaenau Gwent69,71369,65969,61569,58369,54869,50869,46069,40169,34669,29369,24169,19269,15269,12269,09769,07969,07169,07069,07869,09169,11069,13269,15769,18669,21569,244
Torfaen93,04993,31293,58793,85694,11194,35494,56794,76394,95895,14795,32995,50795,68095,85796,03496,21896,40996,60096,78996,98697,18797,38797,58597,78297,98098,178
Monmouthshire94,14294,44194,76895,13495,48995,82696,16996,49996,79297,08997,37397,65697,92698,19598,45598,72698,98699,23699,48099,73799,996100,246100,492100,736100,980101,230
Newport153,302154,529155,763156,972158,154159,298160,402161,476162,509163,474164,406165,314166,187167,040167,877168,701169,501170,296171,091171,897172,702173,499174,290175,078175,858176,632

Metadata

Title
2018-based local authority population projections for Wales, 2018 to 2043

Last update
August 2020 August 2020

Next update
No longer updated. This will be replaced by a future projection.

Publishing organisation
Welsh Government

Source 1
2018-based projections for local authorities in Wales, Welsh Government

Contact email
stats.popcensus@gov.wales

Designation
National Statistics

Lowest level of geographical disaggregation
Local authorities

Geographical coverage
Local authorities

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 population projections for local authorities in Wales by sex, single year of age and each year from the base year of 2018, through the projection period to 2043. This is the fifth set of population projections published for the 22 local authorities in Wales.
Note that the projections become increasingly uncertain the further we try to look into the future.


Data collection and calculation
Population projections provide estimates of the size of the future population, and are based on assumptions about births, deaths and migration. The assumptions are based on past trends. Projections only indicate what may happen should the recent trends continue. Projections done in this way do not make allowances for the effects of local or central government policies on future population levels, distribution and change.

The 2018 population estimates have been used as the base for the local authority projections. The projected population is for 30 June each year. The base population estimates are based on the usually resident population. Usual residents away from home temporarily are included, but visitors are excluded. Students are counted at their term-time address. It should also be noted that the UN definition of an international migrant is used - those changing country of residence for a period of at least 12 months. Short-term migrants (e.g. migrant workers from Eastern European countries) are not counted in the population estimates and hence are not included in the population projections. The projections are based on an assumed pattern of migration based on projecting forward the average migration patterns over the last five years.

The Chief Statistician published an update in February 2020, giving an overview of the methodological changes that had been made to the local authority projections since the 2014-based local authority projections. This included:
• changing the assumptions for internal migration, so that they were based on migration rates rather than fixed numbers
• constraining the sum of the local authority population projections, and some of the component parts, for the 22 local authorities in Wales to the 2018-based national population projections published by the ONS
Another update was issued in July 2020, announcing the publication date for the revised local authority population and household projections, and the decision to revert to not constraining the local authority population projections.
Following discussions with the Wales Subnational Projections (WaSP) group, we made the decision to revert, in part, to the previous methodology for calculating local authority population projections by removing the constraining to the national population projections. The decision to constrain to the national population projections initially was made as a result of the incorrect national population projections showing a different trend to the local authority population projections. However, as this is no longer the case, we have reverted to the original methodology of not constraining in order to provide better continuity with previous local authority population projections, so that they are mainly driven by local trends for births, deaths and migration.
We have, however, retained the change made to the assumptions for internal migration so that they continue to be based on migration rates rather than fixed numbers. Further information can be found in the update.
We will continue to refine this methodology prior to our next set of subnational projections and take account of user feedback.

Two variants are also published covering two different scenarios, a high population variant and a low population variant.

Frequency of publication
Every two to four years

Data reference periods
Data are published for the period 2018 to 2043.

Users, uses and context
See the local authority population projection statistical release in weblinks.

Rounding applied
Data are rounded independently to the nearest whole number and may not add exactly.

Revisions information
These data replaced the 2014 local authority population projections for Wales as the formal estimates of population growth.

On Monday 18 May 2020, the ONS issued a notice on its website informing users that they had identified an error affecting the 2018-based national population projections. The error was caused by incorrect processing of cross-border flows between Wales and England, resulting in the projected mid-2028 population for Wales being approximately 65,000 too low, and that for England being approximately 65,000 too high.
Having consulted with our expert group about the implications for our statistical products that were based on the 2018-based national population projections, we decided to withdraw the 2018-based local authority population projections and household projections.
The ONS published corrected national projections for Wales on Thursday 11 June. These local authority projections are based on the corrected 2018-based national population projections for Wales. Further information about the corrections can be found in the 2018-based local authority population projections release, as well as an analysis of how these corrected projections compare with the previously published projections.


Statistical quality
See the local authority population projection statistical release in weblinks.

Keywords
Population projections; population growth; migration; natural change; births; deaths