Electoral district of Thornlie

Thornlie Western Australia—Legislative Assembly
From the 2021 state election to 2025 From the 2025 state election Interactive map of district boundaries
State	Western Australia
Dates current	1989–2005, 2017–present
MP	Colleen Egan
Party	Labor
Namesake	Thornlie
Electors	31,959 (2025)
Area	69 km2 (26.6 sq mi)
Demographic	Metropolitan
Coordinates	32°04′S115°58′E / 32.06°S 115.97°E / -32.06; 115.97
Electorates around Thornlie: Cannington Forrestfield Kalamunda Cannington Thornlie Kalamunda Jandakot Southern River Kalamunda

Thornlie is an electoral district of the Legislative Assembly of Western Australia. It is located in Perth's southeastern suburbs, and is named after the suburb of Thornlie.

Thornlie was first created for the 1989 state election. It was abolished in a redistribution prior to the 2005 election, but was recreated for the 2017 election to replace the abolished seat of Gosnells. When Thornlie recreated it had a notional 1.8-point majority for the Labor Party (based on the results of the 2013 election), and was considered a marginal seat. ^[1]

History

Thornlie was first created for the 1989 state election. It largely replaced the abolished district of Gosnells and was won by incumbent Gosnells MP Yvonne Henderson. It was held at all times by the Labor Party.

The district was abolished ahead of the 2005 state election. At that time, it included the entirety of the suburbs of Thornlie and Langford as well as parts of the suburbs of Canning Vale, Ferndale, Kenwick, Lynwood and Maddington. Its territory was divided between the existing districts of Riverton and Southern River, as well as the new district of Kenwick. Sitting MP Sheila McHale contested and won the seat of Kenwick.

Upon its recreation prior to the 2017 state election, Thornlie had a notional 1.8-point majority for the Labor Party. ^[2] Incumbent Gosnells MP Chris Tallentire contested Thornlie and won the seat with a 14% swing in his favour, thus making Thornlie a safe Labor seat.

Members for Thornlie

First incarnation (1989–2005)
Member		Party	Term
	Yvonne Henderson	Labor	1989–1996
	Sheila McHale	Labor	1996–2005
Second incarnation (2017–present)
	Chris Tallentire	Labor	2017–2025

Election results

Main article: Electoral results for the district of Thornlie

This section is an excerpt from Results of the 2025 Western Australian state election (Legislative Assembly) § Thornlie.[ edit ]

2025 Western Australian state election: Thornlie ^[3]

Party		Candidate	Votes	%	±%
	Labor	Colleen Egan	8,674	47.1	−26.7
	Liberal	Mahesh Arumugam	2,622	14.2	+0.1
	Independent	Kevin McDonal	2,082	11.3	+11.3
	Greens	Adam Abdul Razak	1,880	10.2	+5.3
	One Nation	Timothy Larcombe	1,466	8.0	+8.0
	Christians	Madeleine Goiran	1,013	5.5	+1.2
	Legalise Cannabis	Fred Mulholland	682	3.7	+3.7
Total formal votes			18,419	94.9	−1.0
Informal votes			995	5.1	+1.0
Turnout			19,414	60.7	−17.0
Two-party-preferred result
	Labor	Colleen Egan	12,883	70.2	−10.3
	Liberal	Mahesh Arumugam	5,466	29.8	+10.3
	Labor hold		Swing	−10.3

Results are not final. Last updated on 12 March 2025 at 2:00 PM AWST

References

1. Thornlie (Key Seat), WA Election 2017. Retrieved 2 February 2017.
2. Thornlie (Key Seat), WA Election 2017. Retrieved 2 February 2017.
3. 2025 State General Election – Thornlie District Results, WAEC. Retrieved 12 March 2025.

External links

• "Map of Thornlie (1996–2005)". boundarieswa.com. Archived from the original on 12 October 2008.