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.

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.

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.

{| class="wikitable sortable"

|-

! ITL 1 region !! Population !! Area (km2)

|-

| East Midlands || align=right|4,835,928 || align=right|15,623

|-

| East of England || align=right|6,236,072 || align=right|19,119

|-

| Greater London || align=right|8,961,989 || align=right|1,572

|-

| Northern Ireland || align=right|1,893,667 || align=right|13,793

|-

| North East England || align=right|2,669,941 || align=right|8,574

|-

| North West England || align=right|7,341,196 || align=right|14,107

|-

| Scotland || align=right|5,463,300 || align=right|77,911

|-

| South East England || align=right|9,180,135 || align=right|19,072

|-

| South West England || align=right|5,624,696 || align=right|23,837

|-

| Wales || align=right|3,152,879 || align=right|20,736

|-

| West Midlands || align=right|5,934,037 || align=right|12,998

|-

| Yorkshire and the Humber || align=right|5,502,967 || align=right|15,405

|-

! United Kingdom !! 66,796,807 !! 242,749

|}

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 codes in this scheme start with "UKC" to avoid confusion with codes in the previous system, which identified 11 regions of England using codes that started with "UK1" through "UK9" plus "UKA" and "UKB".

NUTS 2006

NUTS 2006 came into force on 1 January 2008.

NUTS 2010

NUTS 2010 came into force on 1 January 2012.

ITL 2025

{| class="wikitable"

|+2021 and 2025 Level 2 comparison

! 2021

|-

| — || — || —

|-

| — || — || —

|-

| Tees Valley and Durham || TLC1 || —

|-

| Northumberland, and Tyne and Wear || TLC2 || —

|-

| — || TLC3 || Tees Valley

|-

| — || TLC4 || Northumberland, Durham and Tyne & Wear

|-

| Cumbria || TLD1 || Cumbria

|-

| Greater Manchester || TLD3 || Greater Manchester

|-

| Lancashire || TLD4 || Lancashire

|-

| Cheshire || TLD6 || Cheshire

|-

| Merseyside || TLD7 || Merseyside

|-

| East Yorkshire and Northern Lincolnshire || TLE1 || East Yorkshire and Northern Lincolnshire

|-

| North Yorkshire || TLE2 || North Yorkshire

|-

| South Yorkshire || TLE3 || South Yorkshire

|-

| West Yorkshire || TLE4 || West Yorkshire

|-

| Derbyshire and Nottinghamshire || TLF1 || Derbyshire and Nottinghamshire

|-

| Leicestershire, Rutland and Northamptonshire || TLF2 || Leicestershire, Rutland and Northamptonshire

|-

| Lincolnshire || TLF3 || Lincolnshire

|-

| Herefordshire, Worcestershire and Warwickshire || TLG1 || Herefordshire, Worcestershire and Warwickshire

|-

| Shropshire and Staffordshire || TLG2 || Shropshire and Staffordshire

|-

| West Midlands || TLG3 || West Midlands

|-

| East Anglia || TLH1 || —

|-

| Bedfordshire and Hertfordshire || TLH2 || Bedfordshire and Hertfordshire

|-

| Essex || TLH3 || Essex

|-

| — || TLH4 || Cambridgeshire and Peterborough

|-

| — || TLH5 || Norfolk

|-

| — || TLH6 || Suffolk

|-

| Inner London - West || TLI3 || Inner London - West

|-

| Inner London - East || TLI4 || Inner London - East

|-

| Outer London - East and North East || TLI5 || Outer London - East and North East

|-

| Outer London - South || TLI6 || Outer London - South

|-

| Outer London - West and North West || TLI7 || Outer London - West and North West

|-

| Berkshire, Buckinghamshire and Oxfordshire || TLJ1 || Berkshire, Buckinghamshire and Oxfordshire

|-

| Surrey, East and West Sussex || TLJ2 || Surrey, East and West Sussex

|-

| Hampshire and Isle of Wight || TLJ3 || Hampshire and Isle of Wight

|-

| Kent || TLJ4 || Kent

|-

| Gloucestershire, Wiltshire and Bath/Bristol area || TLK1 || —

|-

| Dorset and Somerset || TLK2 || —

|-

| Cornwall and Isles of Scilly || TLK3 || Cornwall and Isles of Scilly

|-

| Devon || TLK4 || Devon

|-

| — || TLK5 || West of England

|-

| — || TLK6 || North Somerset, Somerset and Dorset

|-

| — || TLK7 || Gloucestershire and Wiltshire

|-

| West Wales and The Valleys || TLL1 || —

|-

| East Wales || TLL2 || —

|-

| — || TLL3 || North Wales

|-

| — || TLL4 || Mid and South West Wales

|-

| — || TLL5 || South East Wales

|-

| — || TLM0 || Eastern Scotland

|-

| — || TLM1 || East Central Scotland

|-

| — || TLM2 || Highlands and Islands

|-

| — || TLM3 || West Central Scotland

|-

| North Eastern Scotland || TLM5 || North Eastern Scotland

|-

| Highlands and Islands || TLM6 || —

|-

| Eastern Scotland || TLM7 || —

|-

| West Central Scotland || TLM8 || —

|-

| Southern Scotland || TLM9 || Southern Scotland

|-

| Northern Ireland || TLN0 || Northern Ireland

|}

Local administrative units

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

{| class="wikitable"

|-

! Level

! Subdivisions

! #

|-

! LAU 1

| Lower tier authorities (districts) or individual unitary authorities (England and Wales);<br> Individual unitary authorities or LECs (or parts thereof) (Scotland);<br> Districts (Northern Ireland)

| align="right" | 415

|-

! LAU 2

| Wards (or parts thereof)

| align="right" | 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

  • Subdivisions of the United Kingdom
  • List of regions of the United Kingdom by Human Development Index
  • ISO 3166-2 codes of the United Kingdom
  • FIPS region codes of the United Kingdom

Sources

  • Metadata Download NUTS (Nomenclature of Territorial Units for Statistics), by regional level (NUTS) accessed 11 June 2012
  • Overview map of EU Countries – NUTS level 1
  • UNITED KINGDOM – NUTS level 2
  • UNITED KINGDOM Center North – NUTS level 3
  • UNITED KINGDOM Center South – NUTS level 3
  • UNITED KINGDOM North – NUTS level 3
  • UNITED KINGDOM South – NUTS level 3
  • Correspondence between the NUTS levels and the national administrative units
  • List of current NUTS codes
  • Download current NUTS codes (ODS format)
  • Divisions of the United Kingdom, Statoids.com
  • Listings of subdivisions of NUTS / LAU areas, Office for National Statistics, accessed 6 September 2012
  • Eurostat Overview of the NUTS classification
  • UK Office for National Statistics Guidance on Nomenclature of Territorial Units for Statistics (NUTS) / Local Administrative Units (LAU)