Number of Electors: 26,624 (9 March 2015)
Source: Western Australian Electoral Commission. State Electorate Information.
Nomenclature: Named after the Darling Range. The Range was named General Darling Range by Captain James Stirling March 1827 after General Sir Ralph Darling, the then Governor of New South Wales. "General" was soon dropped from the name.
Source: Western Australia. Department of Land Administration. Names and Places.
Suburbs/Towns: Baldivis*, Bedfordale, Bickley*, Byford, Canning Mills*, Cardup, Carmel*, Darling Downs, Gorrie, Hacketts Gully, Hopeland, Jarrahdale, Karnup*, Karragullen, Karrakup, Kelmscott*, Keralup*, Keysbrook*, Malmalling, Mardella, Mt Richon*, Mundaring*, Mundijong, Oakford, Oldbury, Pickering Brook, Piesse Brook*, Roleystone, Sawyers Valley*, Serpentine, The Lakes, Wellard*, Whitby and Wungong*.
* = Suburb/Town split between more than one District.
Source: Western Australian Electoral Commission. State Electorate Information
Armadale Primary School; Byford Primary School; Byford Secondary College; Clifton Hills Primary School; Jarrahdale Primary School; Marri Grove Primary School; Mundijong Primary School; Pickering Brook Primary School; Roleystone Community College; Serpentine Primary School; West Byford Primary School; Woodland Grove Primary School
Byford John Calvin School; Good Shepherd Catholic Primary School; Sacred Heart School; Serpentine-Jarrahdale Grammar School; Southern Hills Christian College