Tees Valley Combined Authority in the context of "North Yorkshire"

County Durham, officially simply Durham, is a ceremonial county in North East England. The county borders Northumberland and Tyne and Wear to the north, the North Sea to the east, North Yorkshire to the south, and Cumbria to the west. The largest settlement is Darlington.

The county has an area of 2,676 square kilometres (1,033 sq mi) and had a population of 894,025 in 2024. The centre and east of the county are more densely populated than the west, and the major settlements include Hartlepool on the south-east coast, Stockton-on-Tees in the south-east, Darlington in the south, and the city of Durham in the north-centre. Stockton-on-Tees is part of the Teesside conurbation, which extends into North Yorkshire. Barnard Castle is the largest town in the west of the county. For local government purposes the county comprises the unitary authority areas of County Durham, Darlington, Hartlepool, and part of Stockton-on-Tees. Durham County Council is part of the North East Combined Authority, and the councils of the other three areas are part of the Tees Valley Combined Authority. The part of Tyne and Wear south of the River Tyne was historically part of County Durham, and the part of Durham south of the River Tees was historically part of the North Riding of Yorkshire.

North East England, often referred to as simply the North East within England, is one of nine official regions of England. It consists of County Durham, Northumberland, Tyne and Wear and part of North Yorkshire. With 2.6 million residents in 2022, it is the least populous region of England. Its largest settlements include Newcastle upon Tyne, Sunderland, Middlesbrough, Gateshead, Darlington and Hartlepool. The North East is covered by two mayoral combined authorities: North East Combined Authority and Tees Valley Combined Authority. It is one of three regions, the other two being North West England and Yorkshire and the Humber, that make up Northern England.

Stockton-on-Tees Borough Council is the local authority of the Borough of Stockton-on-Tees, which straddles the ceremonial counties of County Durham and North Yorkshire in England. Since 1996 the council has been a unitary authority, being a district council which also performs the functions of a county council. It therefore provides services including Council Tax billing, libraries, social services, town planning, waste collection and disposal, and it is a local education authority. Since 2016 the council has been a member of the Tees Valley Combined Authority, which has been led by the directly elected Tees Valley Mayor since 2017.