PDF version of the Thornlie Electorate map 
Area (sq km): 69
Number of Electors: 31,084
Source:
2023 Final Distribution Report, Western Australian Electoral Distribution Commission.Origin of the Name:
In December 1955, staff of the then Gosnells Road Board wrote to the Nomenclature Advisory Committee informing them that a portion of Canning Location 17 had been approved for subdivision. They requested that the area be named 'Thornlie', which appeared to be a name by which the whole estate was known at that time. The name was approved in April 1956. One authority states the district was named after Thornlie Bank in Madras. When Padbury owned the property, it was run as an experimental farm by his niece's husband, Frank James, whose grandfather was in business at Thornlie Bank in Madras.
Source: Western Australia. Department of Land Administration. Names and Places.
Suburbs and Towns within the Electorate:
The electorate of Thornlie includes all or part of Gosnells, Maddington, Martin, Orange Grove and Thornlie.
Source: Western Australian Electoral Commission.