The City of Gosnells is a local government area in the southeastern suburbs of the Western Australian capital city of Perth, located northwest of Armadale and about 20 kilometres (12 mi) southeast of Perth's central business district. The City covers an area of 128 square kilometres (49.42 sq mi), a portion of which is state forest rising into the Darling Scarp to the east, and had a population of approximately 118,000 at the 2016 Census. The largest activity centre in the City is the Central Maddington shopping centre. District centres exist in the Gosnells town centre and Thornlie.

The name Gosnells dates back to 1862 when Charles Gosnell who was the owner of London cosmetic company John Gosnell & Co., bought Canning location 16 from the Davis family who were the original grantees in 1829. While the purchase of the land was a personal investment by Charles Gosnell, when the land was sold to developers in 1903 the developers used the association to the well known cosmetic company, claiming it had bought the land because of its fertile soil to grow flowers for the manufacture of its perfume range. The abundance of the Arum Lily (Zantedeschia aethiopica) in the area and the marketing by the developers contributed to the myth about the Gosnell company, being so successful that the Gosnells railway station was constructed on the Armadale line in 1903.

The Gosnells Road District was created out of the abolished Canning Road District on 1 July 1907. Industry in the form of brickworks were introduced to Beckenham in the early 1990s. Between 1912 and 1915 fruit fly wiped out nearly all of the stone fruit crops in the region and many farmers turned to dairying and market gardening. Irrigation was vital due to sandy, infertile soils of Canning Vale. In 1923, the City received land from Jandakot Road District when that entity was abolished. Significant development did not occur until the post-war years. The population grew from 7,400 in 1954 to about 11,000 in 1966, and then to 21,000 in 1970. On 1 July 1961, Gosnells Road District became the Shire of Gosnells following enactment of the Local Government Act 1960. On 1 July 1973 it gained town status as the Town of Gosnells and assumed its current name when it attained City status on 1 July 1977.

A large industrial estate was first established in Maddington in the 1970s, expanding over the subsequent decades. Commercial and industrial development has also occurred in a linear pattern along Albany Highway between Beckenham and Gosnells.

The present mayor is Terresa Lynes, who was elected to the position in October 2021, and reelected in 2023.

There are currently no wards within the City of Gosnells with the entire electorate represented by 12 councillors. The mayor is now elected by popular vote from the elected councillors.

Prior to 2011, the city was divided into 3 wards, each of 4 councillors. The mayor was directly elected. The three wards were:

• Canning Vale Ward
• Bickley Ward
• Gosnells Ward

The suburbs of the City of Gosnells with population and size figures based on the most recent Australian census:

Suburb	Population	Area	Map
Beckenham	9,092 (SAL 2021)	5.9 km (2.3 sq mi)
Gosnells	21,149 (SAL 2021)	14.8 km (5.7 sq mi)
Huntingdale	9,021 (SAL 2021)	4.8 km (1.9 sq mi)
Kenwick	5,684 (SAL 2021)	9.8 km (3.8 sq mi)
Langford	5,505 (SAL 2021)	3.3 km (1.3 sq mi)
Maddington	12,419 (SAL 2021)	10.8 km (4.2 sq mi)
Martin	1,854 (SAL 2021)	28.4 km (11.0 sq mi)
Orange Grove	726 (SAL 2021)	13.8 km (5.3 sq mi)
Southern River	12,852 (SAL 2021)	14 km (5.4 sq mi)
Thornlie	23,665 (SAL 2021)	11.5 km (4.4 sq mi)

( * indicates suburb partially located within City)

Historical population

Year Pop. ±% p.a. 1911 737 —     1921 1,936 +10.14% 1933 3,016 +3.76% 1947 4,405 +2.74% 1954 7,366 +7.62% 1961 7,524 +0.30% 1966 11,374 +8.62% 1971 22,040 +14.15% 1976 40,422 +12.90%

Year Pop. ±% p.a. 1981 52,419 +5.34% 1986 60,610 +2.95% 1991 69,342 +2.73% 1996 73,421 +1.15% 2001 79,782 +1.68% 2006 91,579 +2.80% 2011 106,585 +3.08% 2016 118,000 +2.06% 2021 126,376 +1.38%

As of 2024, 193 places are heritage-listed in the City of Gosnells, of which three are on the State Register of Heritage Places.

• Official website

32°04′19″S 115°59′42″E / 32.072°S 115.995°E / -32.072; 115.995