International Territorial Level in the context of Standardization

The West Midlands is one of nine official regions of England at the first level of International Territorial Level for statistical purposes. It covers the western half of the area known traditionally as the Midlands. The region consists of the counties of Herefordshire, Shropshire, Staffordshire, Warwickshire, West Midlands and Worcestershire. The region has seven cities: Birmingham, Coventry, Hereford, Lichfield, Stoke-on-Trent, Wolverhampton and Worcester.

The West Midlands region is geographically diverse, from the urban central areas of the West Midlands conurbation to the rural counties of Herefordshire, Shropshire which border Wales, and Worcestershire. The region is landlocked; however, the longest river in the UK, the River Severn, traverses the region south-eastwards, flowing through the county towns of Shrewsbury and Worcester, and the Ironbridge Gorge, a UNESCO World Heritage Site. Staffordshire is home to the industrialised Potteries conurbation, including the city of Stoke-on-Trent and the Staffordshire Moorlands area, which borders the south-eastern Peak District National Park near Leek. The region also encompasses five Areas of Outstanding Natural Beauty: the Wye Valley, Shropshire Hills, Cannock Chase, Malvern Hills and parts of the Cotswolds. Warwickshire is home to the towns of Stratford upon Avon, birthplace of writer William Shakespeare; Rugby, the birthplace of Rugby football; and Nuneaton, birthplace to author George Eliot.

The regions of England, formerly known as the government office regions, are the highest tier of sub-national division in England. They were established in 1994 and follow the 1974–96 county borders. They are a continuation of the former 1940s standard regions which followed the 1889–1974 administrative county borders. Between 1994 and 2011, all nine regions had partly devolved functions; they no longer fulfil this role, continuing to be used for limited statistical purposes.

While the UK was a member of the European Union, they defined areas (constituencies) for the purposes of elections to the European Parliament. Eurostat also used them to demarcate first level Nomenclature of Territorial Units for Statistics (NUTS) regions ("NUTS 1 regions") within the European Union, which in 2021 were superseded by International Territorial Level (ITL) regions ("ITL 1 regions").

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). Between 2003 and 2021, as part of the European Union and European Statistical System, the geocode standard used for the United Kingdom were Nomenclature of Territorial Units for Statistics or NUTS. The NUTS code for the UK was UK and the NUTS standard had a hierarchy of three levels, with 12 first level regions, which are currently mirrored by the ITL classification, of which 9 regions are in England. The sub-structure corresponds to administrative divisions within the country. Formerly, the further NUTS divisions IV and V existed; these have now been replaced by Local Administrative Units (LAU-1 and LAU-2 respectively).Between 1994 and 2011, the nine regions had an administrative role in the implementation of UK Government policy, and as the areas covered by (mostly indirectly) elected bodies.

The North Midlands is a loosely defined area covering the northern parts of the Midlands in England. It is not an International Territorial Level region like the East Midlands or the West Midlands.

A statistical definition in 1881 included the counties of Derbyshire, Leicestershire, Lincolnshire, Nottinghamshire and Rutland, an area historically known as the Five Boroughs of the Danelaw. A Second World War civil defence region called North Midland included the five counties and Northamptonshire. It has remained in informal use for Derbyshire and Nottinghamshire, the northern parts of Lincolnshire and Staffordshire, and sometimes the far south of Northern England. A North Midlands combined authority area was proposed in 2016 for Derbyshire and Nottinghamshire, but cancelled later that year.

West Wales and the Valleys is a UK International Territorial Level 2 statistical region covering the western areas of Wales and the South Wales Valleys. Created as part of Eurostat's Nomenclature of Territorial Units for Statistics (NUTS), it was used by the European Union (EU) to deliver the European Regional Development Fund to areas of Wales, until the UK's withdrawal from the EU in 2020, after which it was mirrored onto the Office for National Statistics' International Territorial Level (ITL) geo-classification system. The remainder of Wales is part of the East Wales statistical region.