Most of the population of the Kalgoorlie electorate is in the built-up area of the City of Kalgoorlie-Boulder, new boundaries introduced in 2017 combining the twin cities into the same electorate for the first time. As well as the City of Kalgoorlie-Boulder council, the electorate includes the Shires of Wiluna, Laverton, Leonora, Menzies, Coolgardie and Dundas. Other the major population centres are Coolgardie, Kambalda and Norseman. Kalgoorlie is the state's second largest electorate covering 754,990 square kilometres, 29.9% of the state and an area almost as large as New South Wales.

Source: ABC