The Wheatbelt is one of the nine regions of Western Australia. It partially surrounds the Perth metropolitan area, extending north from Perth to the Mid West region, and east to the Goldfields-Esperance region. It is bordered to the south by the South West and Great Southern regions, and to the west by the Indian Ocean, the Perth metropolitan area, and the Peel region. Altogether, it has an area of 154,862 square kilometres (59,793 sq mi) (including islands).
The region has 43 local government authorities, with an estimated population of 75,000 residents. The Wheatbelt accounts for approximately three per cent of Western Australia’s population.
The area, once a diverse ecosystem, where clearing began in the 1890s with the removal of plant species such as eucalypt woodlands and mallee, is now home to around 11% of Australia's critically endangered plants.
The Wheatbelt encompasses a range of ecosystems and, as a result, there are a range of industries operating in the region.
In the Interim Biogeographic Regionalisation for Australia there are a number of subdivisions such as the Avon Wheatbelt (AVW), and a further breakdown of Avon Wheatbelt P1 (AW1) and Avon Wheatbelt P2 (AW2), Jarrah Forest, Geraldton Sandplain and Mallee regions.
Near the coast, the region receives relatively high rainfall and mild temperatures, and its 150 kilometres (93 mi) of coastline is a significant tourist area. In contrast, the eastern fringe is very arid, and is mainly used for pastoral farming of sheep. Mining of gold, nickel and iron ore also occurs. The remainder of the region is highly suited to agriculture, and is the source of nearly two thirds of the state's wheat production, half of its wool production, and the majority of its lamb and mutton, oranges, honey, cut flowers and a range of other agricultural and pastoral products.