Included within its boundaries were Emerald, Cockatoo, Gembrook, Beaconsfield, and sizeable parts of Berwick and Pakenham. The district formerly extended north to Yarra Valley communities such as Warburton and Launching Place prior to the seat's redistribution at the 2014 election.
The boundaries of the district have changed since it was established. It originally extended north to include Yarra Valley communities like Warburton and Launching Place, but this has been altered by redistribution in 2014.