Area: 1,385 km²

Nomenclature: the Darling Range electorate takes its name from the low escarpment running north–south to the east of the Swan Coastal Plain and Perth, also referred to as the Darling Scarp or Darling Ranges and known locally as the Perth Hills.

The name was first recorded as "General Darling Range" in March 1827 by Charles Fraser, Government Botanist with Captain James Stirling aboard HMS Success, after General Sir Ralph Darling, the then Governor of New South Wales. "General" was soon dropped from the name.

Suburbs/Towns: Ashendon, Baldivis*, Bedfordale, Byford, Cardup, Darling Downs*, Hopeland, Jarrahdale, Karragullen, Karrakup, Keralup, Keysbrook*, Mardella, Mt Richon*, Mundijong, Oldbury, Roleystone, Serpentine, Wellard*, Whitby, Wungong

*Suburb/Town split between more than one Electorate.

Local Government Areas: City of Armadale, City of Kwinana, City of Rockingham, Shire of Serpentine-Jarrahdale

Number of Electors: 32,244 (2025 State Election)

Source: Western Australian Electoral Commission.