Administrative county in the context of "Urban district (Great Britain and Ireland)"

Northern Ireland is divided into six counties, namely Antrim, Armagh, Down, Fermanagh, Londonderry and Tyrone. Six largely rural administrative counties based on these were among the eight primary local government areas of Northern Ireland from its 1921 creation until 1973. The other two local government areas were the urban county boroughs of Derry (geographically part of the County of Londonderry) and Belfast (geographically split between the counties of Antrim and Down).

The six counties date from the Kingdom of Ireland; five were created between 1570 and 1591 in the Tudor conquest of Ireland, while county Londonderry dates from 1613 and the Plantation of Ulster. The total number of counties in the island of Ireland is 32, with Northern Ireland and the Republic of Ireland often respectively called "the Six Counties" and "the Twenty-Six Counties", especially by Irish nationalists opposed to the partition of Ireland. The 1898–1973 administrative counties were subdivided into county districts. The two-tier county/district system was replaced with a single-tier of "districts", numbering 26 in 1973 and rationalised into 11 in 2015. The areas corresponding to the six counties and two county boroughs remain in use for some administrative purposes, and the six historic counties retain a popular identity.

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of Territorial Units for Statistics (NUTS) regions ("NUTS 1 regions") within the European Union, which in 2021 were superseded by International Territorial Level (ITL) regions ("ITL 1 regions").

The urban and rural districts of Northern Ireland were created in 1899 when the Local Government (Ireland) Act 1898 came into effect. They were based on the system of district councils introduced in England and Wales four years earlier. (See List of Irish local government areas 1898–1921 for a historical list of districts in all of Ireland.)

At the time of Northern Ireland's creation in 1921, Ireland as a whole was divided into thirty-three administrative counties and six county boroughs; the administrative counties were in turn subdivided into several boroughs, urban districts, and rural districts. Each district was divided into a number of district electoral divisions (DEDs). Northern Ireland received a total of six administrative counties, together with the county boroughs of Belfast and Derry. The six administrative counties all included a number of urban and rural districts in 1921, but no boroughs.

The West Riding of Yorkshire was one of three historic subdivisions of Yorkshire, England. From 1889 to 1974 the riding was an administrative county named County of York, West Riding. The lieutenancy at that time included the city of York and as such was named "West Riding of the County of York and the County of the City of York". The riding ceased to be used for administrative purposes in 1974, when England's local government was reformed.

Contemporary local government boundaries in Yorkshire largely do not follow those of the riding. All of South Yorkshire (except Finningley) and West Yorkshire were historically within its boundaries, as were the south-western areas of North Yorkshire (including Ripon), the Sedbergh area of Cumbria, the Barnoldswick and Slaidburn areas of Lancashire, the Saddleworth area of Greater Manchester and the part of the East Riding of Yorkshire around Goole and southwest of the River Ouse.

Rotherham (/ˈrɒðərəm/ RODH-ər-əm) is a market town in South Yorkshire, England. It lies at the confluence of the River Rother, from which the town gets its name, and the River Don. It is the largest settlement of the Metropolitan Borough of Rotherham.

Before the Industrial Revolution, traditional industries included farming, glass making and flour milling. In the late 18th and 19th centuries, Rotherham became known for its coal mining and, later, steel industries. The town's historic county is Yorkshire, and Rotherham was once part of the West Riding of Yorkshire. In 1974, this administrative county was abolished during a reorganisation of local government. Subsequently, Rotherham became part of the county of South Yorkshire, where it makes up one of four metropolitan boroughs.