International Territorial Level

International Territorial Level (ITL) is a geocode standard for referencing the subdivisions of the United Kingdom for statistical purposes, used by the Office for National Statistics (ONS). From 2003 and until 2020 it functioned as part of the European Union and European Statistical System's geocode standard Nomenclature of Territorial Units for Statistics or NUTS.

ITL 1 regions
  • Also known as:
  • NUTS 1 regions of the United Kingdom
CategoryStatistical regions
LocationUnited Kingdom
Created
  • 1994 (as NUTS 1)
Number12 (as of 2010)
Possible status
Populations1.8–9 million
Subdivisions
  • ITL 2 regions

Following Brexit, the ONS set to develop a domestic statistical classification framework separate from NUTS. Currently, the ITLs are a mirror to the pre-existing NUTS system, they retain the same three level hierarchy and boundaries used for NUTS in the United Kingdom since 2018, with the next review scheduled for 2024. ITLs are set to follow a similar review timetable to NUTS, being reviewed every three years. The ONS will develop new official GSS codes of ITL geography aligned with the existing NUTS codes. From 1 January 2021, the ONS encourages "ITL" be used as a replacement to the "NUTS" designation, with lookups between NUTS and ITL maintained and published until 2023.[1][2]

The current ITL classification is a mirror of the previous NUTS classification with slight modification, the ONS lists 12 regions at ITL 1, 41 regions at ITL 2, and 179 regions at ITL 3.[1] "UK" in the NUTS codes were replaced with "TL".

The last NUTS classification is dated 21 November 2016 and was effective from 1 January 2018, listed 12 regions at NUTS 1, 40 regions at NUTS 2, and 174 regions at NUTS 3 level.

NUTS 2018 codes
Level Corresponding subdivisions #
NUTS 1 Wales,
Scotland,
Northern Ireland,
9 statistical regions in England		 12
NUTS 2 Northern Ireland,
counties in England (most grouped),
groups of districts in Greater London,
groups of unitary authorities in Wales,
groups of council areas in Scotland		 40
NUTS 3 counties, unitary authorities, or districts in England (some grouped),
groups of unitary authorities in Wales,
groups of council areas in Scotland,
groups of districts in Northern Ireland		 174

NUTS 2015 codes (now superseded)
NUTS 1 Code NUTS 2 Code NUTS 3 Code
North East, England UKC Tees Valley and Durham UKC1 Hartlepool and Stockton-on-Tees UKC11
South Teesside (Middlesbrough and Redcar and Cleveland) UKC12
Darlington UKC13
County Durham UKC14
Northumberland and Tyne and Wear UKC2 Northumberland UKC21
Tyneside (Newcastle upon Tyne, Gateshead, South Tyneside, North Tyneside) UKC22
Sunderland UKC23
North West, England UKD Cumbria UKD1 West Cumbria (Allerdale, Barrow-in-Furness, Copeland) UKD11
East Cumbria (Carlisle, Eden, South Lakeland) UKD12
Cheshire UKD6 Warrington UKD61
Cheshire East UKD62
Cheshire West and Chester UKD63
Greater Manchester UKD3 Manchester UKD33
Greater Manchester South West (Salford and Trafford) UKD34
Greater Manchester South East (Stockport and Tameside) UKD35
Greater Manchester North West (Bolton and Wigan) UKD36
Greater Manchester North East (Bury, Oldham and Rochdale) UKD37
Lancashire UKD4 Blackburn with Darwen UKD41
Blackpool UKD42
Lancaster and Wyre UKD44
Mid Lancashire (Fylde, Preston, Ribble Valley and South Ribble) UKD45
East Lancashire (Burnley, Hyndburn, Pendle and Rossendale) UKD46
Chorley and West Lancashire UKD47
Merseyside UKD7 East Merseyside (Knowsley, St Helens and Halton) UKD71
Liverpool UKD72
Sefton UKD73
Wirral UKD74
Yorkshire and the Humber, England UKE East Riding and North Lincolnshire UKE1 Kingston upon Hull UKE11
East Riding of Yorkshire UKE12
North and North East Lincolnshire UKE13
North Yorkshire UKE2 York UKE21
North Yorkshire CC UKE22
South Yorkshire UKE3 Barnsley, Doncaster and Rotherham UKE31
Sheffield UKE32
West Yorkshire UKE4 Bradford UKE41
Leeds UKE42
Calderdale and Kirklees UKE44
Wakefield UKE45
East Midlands, England UKF Derbyshire and Nottinghamshire UKF1 Derby UKF11
East Derbyshire (Bolsover, Chesterfield, North East Derbyshire) UKF12
South and West Derbyshire (Amber Valley, Derbyshire Dales, Erewash, High Peak, South Derbyshire) UKF13
Nottingham UKF14
North Nottinghamshire (Ashfield, Bassetlaw, Mansfield, Newark and Sherwood) UKF15
South Nottinghamshire (Broxtowe, Gedling, Rushcliffe) UKF16
Leicestershire, Rutland and Northamptonshire UKF2 Leicester UKF21
Leicestershire CC and Rutland UKF22
West Northamptonshire (Northampton, Daventry and South Northamptonshire) UKF24
North Northamptonshire (East Northamptonshire, Corby, Wellingborough and Kettering) UKF25
Lincolnshire UKF3 Lincolnshire CC UKF30
West Midlands, England UKG Herefordshire, Worcestershire and Warwickshire UKG1 Herefordshire UKG11
Worcestershire CC UKG12
Warwickshire CC UKG13
Shropshire and Staffordshire UKG2 Telford and Wrekin UKG21
Shropshire UKG22
Stoke-on-Trent UKG23
Staffordshire CC UKG24
West Midlands UKG3 Birmingham UKG31
Solihull UKG32
Coventry UKG33
Dudley UKG36
Sandwell UKG37
Walsall UKG38
Wolverhampton UKG39
East of England UKH East Anglia UKH1 Peterborough UKH11
Cambridgeshire CC UKH12
Suffolk UKH14
Norwich and East Norfolk (Broadland and Great Yarmouth) UKH15
North and West Norfolk UKH16
Breckland and South Norfolk UKH17
Bedfordshire and Hertfordshire UKH2 Luton UKH21
Bedford UKH24
Central Bedfordshire UKH25
Hertfordshire UKH23
Essex UKH3 Southend-on-Sea UKH31
Thurrock UKH32
Essex Haven Gateway (Braintree, Colchester and Tendring) UKH34
West Essex (Epping Forest, Harlow and Uttlesford) UKH35
Heart of Essex (Brentwood, Chelmsford and Maldon) UKH36
Essex Thames Gateway (Basildon, Castle Point and Rochford) UKH37
London, England UKI Inner London - West UKI3 Camden and City of London UKI31
Westminster UKI32
Hammersmith and Fulham and Kensington and Chelsea UKI33
Wandsworth UKI34
Inner London - East UKI4 Hackney and Newham UKI41
Tower Hamlets UKI42
Haringey and Islington UKI43
Lewisham and Southwark UKI44
Lambeth UKI45
Outer London - East and North East UKI5 Bexley and Greenwich UKI51
Barking & Dagenham and Havering UKI52
Redbridge and Waltham Forest UKI53
Enfield UKI54
Outer London - South UKI6 Bromley UKI61
Croydon UKI62
Merton, Kingston upon Thames and Sutton UKI63
Outer London - West and North West UKI7 Barnet UKI71
Brent UKI72
Ealing UKI73
Harrow and Hillingdon UKI74
Hounslow and Richmond upon Thames UKI75
South East, England UKJ Berkshire, Buckinghamshire, and Oxfordshire UKJ1 Berkshire UKJ11
Milton Keynes UKJ12
Buckinghamshire CC UKJ13
Oxfordshire UKJ14
Surrey, East and West Sussex UKJ2 Brighton and Hove UKJ21
East Sussex CC UKJ22
West Surrey (Elmbridge, Guildford, Runnymede, Spelthorne, Surrey Heath, Waverley and Woking) UKJ25
East Surrey (Epsom and Ewell, Mole Valley, Reigate and Banstead and Tandridge) UKJ26
West Sussex (South West) - (Adur, Arun, Chichester and Worthing) UKJ27
West Sussex (North East) - (Crawley, Horsham and Mid Sussex) UKJ28
Hampshire and Isle of Wight UKJ3 Portsmouth UKJ31
Southampton UKJ32
Isle of Wight UKJ34
South Hampshire (Eastleigh, Fareham, Gosport and Havant) UKJ35
Central Hampshire (East Hampshire, New Forest, Test Valley and Winchester) UKJ36
North Hampshire (Basingstoke and Deane, Hart and Rushmoor) UKJ37
Kent UKJ4 Medway UKJ41
Kent Thames Gateway (Dartford, Gravesham and Swale) UKJ43
East Kent (Canterbury, Dover, Folkestone and Hythe and Thanet) UKJ44
Mid Kent (Ashford and Maidstone) UKJ45
West Kent (Sevenoaks, Tonbridge and Malling and Tunbridge Wells) UKJ46
South West, England UKK Gloucestershire, Wiltshire and Bristol/Bath area UKK1 Bristol UKK11
Bath and North East Somerset, North Somerset and South Gloucestershire UKK12
Gloucestershire CC UKK13
Swindon UKK14
Wiltshire UKK15
Dorset and Somerset UKK2 Bournemouth and Poole UKK21
Dorset CC UKK22
Somerset UKK23
Cornwall and Isles of Scilly UKK3 Cornwall and Isles of Scilly UKK30
Devon UKK4 Plymouth UKK41
Torbay UKK42
Devon CC UKK43
Wales UKL West Wales and The Valleys UKL1 Isle of Anglesey UKL11
Gwynedd UKL12
Conwy and Denbighshire UKL13
South West Wales (Ceredigion, Carmarthenshire, Pembrokeshire) UKL14
Central Valleys (Merthyr Tydfil, Rhondda Cynon Taff) UKL15
Gwent Valleys (Blaenau Gwent, Caerphilly, Torfaen) UKL16
Bridgend and Neath Port Talbot UKL17
Swansea UKL18
East Wales UKL2 Monmouthshire and Newport UKL21
Cardiff and Vale of Glamorgan UKL22
Flintshire and Wrexham UKL23
Powys UKL24
Scotland UKM Eastern Scotland UKM2 Angus and Dundee UKM21


 Clackmannanshire and Fife UKM22
East Lothian and Midlothian UKM23
Scottish Borders UKM24
Edinburgh UKM25
Falkirk UKM26
Perth and Kinross, and Stirling UKM27
West Lothian UKM28
South Western Scotland UKM3 East Dunbartonshire, West Dunbartonshire, and Helensburgh and Lomond UKM31
Dumfries and Galloway UKM32
East and North Ayrshire mainland UKM33
Glasgow UKM34
Inverclyde, East Renfrewshire, and Renfrewshire UKM35
North Lanarkshire UKM36
South Ayrshire UKM37
South Lanarkshire UKM38
North Eastern Scotland UKM5 Aberdeen and Aberdeenshire UKM50
Highlands and Islands UKM6 Caithness and Sutherland, and Ross and Cromarty UKM61
Inverness, Nairn, Moray, and Badenoch and Strathspey UKM62
Lochaber, Skye and Lochalsh, Arran and Cumbrae, and Argyll and Bute (except Helensburgh and Lomond) UKM63
Eilean Siar (Western Isles) UKM64
Orkney Islands UKM65
Shetland Islands UKM66
Northern Ireland UKN Northern Ireland UKN0 Belfast UKN01
Outer Belfast (Carrickfergus, Castlereagh, Lisburn, Newtownabbey, North Down) UKN02
East of Northern Ireland (Antrim, Ards, Ballymena, Banbridge, Craigavon, Down, Larne) UKN03
North of Northern Ireland (Ballymoney, Coleraine, Derry, Limavady, Moyle, Strabane) UKN04
West and South of Northern Ireland (Armagh, Cookstown, Dungannon, Fermanagh, Magherafelt, Newry and Mourne, Omagh) UKN05
Extra-regio NUTS 1 UKZ Extra-regio NUTS 2 UKZZ Extra-regio NUTS 3 UKZZZ

Demographic statistics by ITL 1 region

The 12 ITL regions of the United Kingdom are listed below. Population numbers are for mid-2019 (as NUTS 1), and areas are in square kilometres. Data is from the Office for National Statistics.[3]

ITL 1 regionPopulationArea (km2)
East Midlands4,835,92815,623
East of England6,236,07219,119
Greater London8,961,9891,572
Northern Ireland1,893,66713,793
North East England2,669,9418,574
North West England7,341,19614,107
Scotland5,463,30077,911
South East England9,180,13519,072
South West England5,624,69623,837
Wales3,152,87920,736
West Midlands5,934,03712,998
Yorkshire and the Humber5,502,96715,405
United Kingdom66,796,807242,749

History

NUTS 2003

In the first version in 2003, North Eastern Scotland (which then included part of Moray) was coded UKM1, and Highlands and Islands was coded UKM4.

The current NUTS level 1 codes start with "C" (following "UK") rather than "1" because the new list reflected the revised regions of England and local government changes throughout the UK; "1" to "B" had been used for the 11 regions in the previous coding system.

NUTS 2006

NUTS 2006 came into force on 1 January 2008.[4]

NUTS 2010

NUTS 2010 came into force on 1 January 2012.[4]

2010 changes to NUTS 2 also resulting in changes with NUTS 3 regions

  • The combined area of UKD2 (Cheshire pre-2010) and UKD5 (Merseyside pre-2010) were replaced by UKD6 (Cheshire post-2010) and UKD7 (Merseyside post-2010), due to the transfer of Halton to the Merseyside NUTS region from Cheshire. This resulted in the following changes to the underlying NUTS 3 areas: UKD22 (Cheshire CC) being split into UKD62 (Cheshire East) and UKD63 (Cheshire West and Chester); The areas of Liverpool, Sefton and Wirral were not changed as NUTS 3 areas however to reflect their transfer within NUTS 2 areas were respectively renumbered from (UKD52 to UKD72; UKD53 to UKD 73 and UKD54 to UKD 74). The two areas of UKD51 (East Merseyside pre 2010) and UKD21 (Halton and Warrington) were amended by the transfer of Halton from the latter to former to form the new areas of UKD71 (East Merseyside post-2010) and UKD61 (Warrington).

2010 changes to NUTS 3 areas without changes occurring to NUTS 2 areas

  • UKE43 (Calderdale, Kirklees and Wakefield) was replaced by UKE44 (Calderdale and Kirklees) and UKE45 (Wakefield)
  • UKF23 (Northamptonshire) was replaced by UKF24 (West Northamptonshire) and UKF25 (North Northamptonshire)
  • UKG34 (Dudley and Sandwell) was replaced by UKG36 (Dudley) and UKG37 (Sandwell)
  • UKG35 (Walsall and Wolverhampton) was replaced by UKG38 (Walsall) and UKG39 (Wolverhampton).
  • Bedfordshire CC UKH22 was replaced by UKH24 (Bedford) and UKH25 (Central Bedfordshire)

NUTS 2013

NUTS 2013 came into force on 1 January 2015.[4]

2015 changes to NUTS 3 areas without changes to NUTS 2 areas:

  • UKJ42 (Kent CC) was replaced by UKJ43 (Kent Thames Gateway) UKJ44 (East Kent) UKJ45 (Mid Kent) UKJ46 (West Kent)
  • UKJ23 (Surrey) was replaced by UKJ25 (West Surrey) and UKJ26 (East Surrey)
  • UKJ24 (West Sussex) was replaced by UKJ27 (West Sussex South West) and UKJ28 (West Sussex North East)
  • UKJ33 (Hampshire CC) was replaced by UKJ35 (South Hampshire), UKJ36 (Central Hampshire), UKJ37 (North Hampshire)
  • UKD43 (Lancashire CC) was replaced by UKD44 (Lancaster and Wyre), UKD45 (Mid Lancashire), UKD46 (East Lancashire) and UKD47 (Chorley and West Lancashire)
  • UKD31 (Greater Manchester South) was replaced by UKD33 (Manchester), UKD34 (Greater Manchester South West) and UKD35 (Greater Manchester South East)
  • UKD32 (Greater Manchester North) was replaced by UKD36 (Greater Manchester North West) and UKD37 (Greater Manchester North East)
  • UKH13 (Norfolk) was replaced by UKH15 (Norwich and East Norfolk), UKH16 (North and West Norfolk) and UKH17 (Breckland and South Norfolk)
  • UKH33 (Essex CC) was replaced by UKH34 (Essex Haven Gateway), UKH35 (West Essex), UKH36 (Heart of Essex) and UKH37 (Essex Thames Gateway)

In 2015 the Greater London NUTS 1 area was left unchanged however the previous NUTS 2 area of inner and outer London were abolished and with the previous NUTS 3 areas becoming NUTS 2 areas. Thus NUTS 2 of Inner London West UKI11 becoming the NUTS 3 area of UKI3 and likewise: Inner London East (from UKI12 to UKI4), Outer London East and North East (from UKI21 to UKI5), Outer London South (from UKI22 to UKI6) and Outer London West and North West (from UKI23 to UKI7). The NUTS 3 areas are now a single or a group of two or three boroughs.

NUTS 2016
  • UKM2 (Eastern Scotland) is replaced with UKM7 (Eastern Scotland) along with associated NUTS 3 areas
  • UKM3 (South Western Scotland) is replaced with UKM8 (West Central Scotland) and UKM9 (Southern Scotland)

ITL 2021

Following Brexit, the classification used by the ONS was replaced with ITLs. Between 2021 and the next review scheduled for 2024, the ITLs are a mirror of the NUTS classification adopted in 2018. All NUTS codes containing "UK" were changed to use "TL" for Territorial Level.

Local administrative units
Main article: Local Administrative Unit

Below the ITL levels, the two LAU (Local Administrative Units) levels are:

Level Subdivisions #
LAU 1 Lower tier authorities (districts) or individual unitary authorities (England and Wales);
Individual unitary authorities or LECs (or parts thereof) (Scotland);
Districts (Northern Ireland)		 415
LAU 2 Wards (or parts thereof) 10400

The two LAU levels are maintained by the UK Office for National Statistics within the ONS coding system.

The LAU codes of the United Kingdom can be downloaded here:

See also
ITL 2 regions
  • Also known as:
  • NUTS 2 regions of the United Kingdom
CategoryStatistical regions
LocationUnited Kingdom
Found inITL 1 regions
Number40 (as of 2015)
Subdivisions
  • ITL 3 regions

Sources
  1. "International, regional and city statistics - Office for National Statistics". www.ons.gov.uk. Retrieved 22 November 2021.
  2. "International Territorial Levels Level 2 (January 2021) Names and Codes in the United Kingdom". geoportal.statistics.gov.uk. Retrieved 22 November 2021.
  3. Population estimates for the United Kingdom, England and Wales, Scotland and Northern Ireland, mid-2019 from the Office for National Statistics
  4. Eurostat: History of NUTS, accessed 12 July 2015
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