The region is administered by the Wellington Regional Council, which uses the promotional name Greater Wellington Regional Council. The council region covers the conurbation around the capital city, Wellington, and the cities of Lower Hutt, Porirua, and Upper Hutt, each of which has a rural hinterland; it extends up the west coast of the North Island, taking in the coastal settlements of the Kapiti Coast District; east of the Rimutaka Range it includes three largely rural districts containing most of Wairarapa, covering the towns of Masterton, Carterton, Greytown, Featherston and Martinborough. The Wellington Regional Council was first formed in 1980 from a merger of the Wellington Regional Planning Authority and the Wellington Regional Water Board.