__NOTOC__ Costello is a locality in the

Northern Territory of Australia The Northern Territory (commonly abbreviated as NT; formally the Northern Territory of Australia) is an Australian territory in the central and central northern regions of Australia. The Northern Territory shares its borders with Western Aust ...

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

Queensland ) , nickname = Sunshine State , image_map = Queensland in Australia.svg , map_caption = Location of Queensland in Australia , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , establishe ...

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 Costello may refer to: Places *Costello, Northern Territory, Australia *Costello Athletic Center, a multi-purpose arena in Lowell, Massachusetts, United States * Costello (barony), County Mayo, Ireland *Casla (''Costelloe'' in English), a village ...

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 The Limmen Bight River is a river in the Northern Territory, Australia. The headwaters rise at the base of the Favenc Range near O.T. Downs and Broadmere Stations. It then flows in a northerly direction, with many smaller tributaries feeding the ...

. Costello includes the following places listed on the

Northern Territory Heritage Register The Northern Territory Heritage Register is a heritage register, being a statutory list of places in the Northern Territory of Australia that are protected by the Northern Territory statute, the ''Heritage Act 2011''. The register is maintained b ...

– the

Eldo Rocket Shelters Annitowa Eldo is a given name is a variation of Eldho and may refer to the following people People * Eldo Abraham, Indian politician *Eldo T. Ridgway (1880–1955), American physician and politician Fictional characters *''Eldo Davip'',a fictional soldi ...

and the

Eldo Rocket Shelters Argadargada Eldo is a given name is a variation of Eldho and may refer to the following people People * Eldo Abraham, Indian politician *Eldo T. Ridgway (1880–1955), American physician and politician Fictional characters *''Eldo Davip'',a fictional soldi ...

. The 2016 Australian census 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 area of the Northern Territory of Australia, administered by the Barkly Regional Council. The region's main town is Tennant Creek. The region covers an area of and had a populati ...

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