__NOTOC__ Costello is a locality in the

Northern Territory of Australia The Northern Territory (abbreviated as NT; known formally as the Northern Territory of Australia and informally as the Territory) is an states and territories of Australia, Australian internal territory in the central and central-northern regi ...

located in the territory's east adjoining the border with the state of

Queensland Queensland ( , commonly abbreviated as Qld) is a States and territories of Australia, state in northeastern Australia, and is the second-largest and third-most populous state in Australia. It is bordered by the Northern Territory, South Austr ...

about south-east of the territory capital of Darwin. The locality consists of the following land (from north to south, then west to east): #The Wakaya Aboriginal Lands Trust and land described as NT Portion 4246 #The Arruwurra Aboriginal Corporation, NT Portions 4247, 581, 1094 and 1095, and the Argadargada pastoral lease and, #The Georgina Downs and Lake Nash pastoral leases The locality fully surrounds the localities of Alpurrurulam and Canteen Creek. As of 2020, it has an area of . The locality's boundaries and name were gazetted on 4 April 2007. Its name is derived from the mountain range which was named in June 1989 as the Costello Range after John Costello, a pastoralist who established the Lake Nash Station in 1890 after moving his cattle from the Valley of the Springs Station which was located on the course of the Limmen Bight River. Costello includes the following places listed on the Northern Territory Heritage Register – the Eldo Rocket Shelters Annitowa and the Eldo Rocket Shelters Argadargada. The

2016 Australian census The 2016 Australian census was the 17th Census in Australia, national population census held in Australia. The census was officially conducted with effect on Tuesday, 9 August 2016. The total population of the Commonwealth of Australia was count ...

which was conducted in August 2016 reports that Costello had a population of 12 people. Costello is located within the federal division of Lingiari, the territory electoral division of Barkly and the local government area of the

Barkly Region The Barkly Region, formerly Barkly Shire, is a Local Government Areas of the Northern Territory, local government area of the Northern Territory of Australia, administered by the Barkly Regional Council. The region's main town is Tennant Creek ...

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{{Localities and communities of the Barkly Region, state=collapsed Populated places in the Northern Territory Barkly Region