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List of islands of Australia facts for kids

Kids Encyclopedia Facts

This is a list of selected Australian islands grouped by State or Territory.

Australia has 8,222 islands within its maritime borders.

Largest islands

The islands larger than 1,000 square kilometres (390 sq mi) are:

  • Mainland Tasmania (Tas) 64,519 square kilometres (24,911 sq mi);
  • Melville Island, Northern Territory (NT), 5,786 square kilometres (2,234 sq mi);
  • Kangaroo Island, South Australia (SA), 4,416 square kilometres (1,705 sq mi);
  • Groote Eylandt (NT), 2,285 square kilometres (882 sq mi);
  • Bathurst Island (NT), 1,693 square kilometres (654 sq mi);
  • Fraser Island, Queensland (Qld), 1,653 square kilometres (638 sq mi);
  • Flinders Island (Tas), 1,359 square kilometres (525 sq mi);
  • King Island (Tas), 1,091 square kilometres (421 sq mi); and
  • Mornington Island (Qld), 1,002 square kilometres (387 sq mi).

New South Wales

Bird Island NSW Aerial view 14-1-1996
Bird Island, 1996
Cockatoo Island, the largest island in Sydney Harbour, 2008
  • Bare Island, near the north headland of Botany Bay
  • Bird Island, located near Budgewoi, 1.4 kilometres (0.87 mi) east of the Central Coast
  • Boondelbah Island, at the mouth of Port Stephens
  • Broughton Island (New South Wales), located north of Port Stephens
  • Cabbage Tree Island, at the mouth of Port Stephens
  • Chatsworth Island, in the Clarence River
  • Clark Island, in Sydney Harbour
  • Cockatoo Island, in Sydney Harbour, originally used as a prison and later developed as a shipyard
  • Cook Island, located near Tweed Heads
  • Dangar Island, a small forested island in the Hawkesbury River
  • Dumaresq Island, a small island in the Manning River downstream of Taree
  • Darling Island, a former island subsequently bridged by land, in Sydney Harbour
  • Esk Island, in the north arm of the Clarence River
  • Fatima Island, a tidal island of the COok's RIver
  • Fort Denison, also known as Pinchgut
  • Five Islands Nature Reserve, a group of islands off the coast near Wollongong
  • Garden Island (no longer an island)
  • Glebe Island (no longer an island)
  • Goat Island, a rocky island in Sydney Harbour
  • Goodwood Island
  • Green Island, a small island north of Smoky Cape
  • Harwood Island, in the Clarence River
  • Lion Island, at the entrance to the Hawkesbury River
  • Long Island, in the Hawkesbury River
  • Lord Howe Island, a small island in the Tasman Sea, 600 kilometres (370 mi) east of the Australian mainland
    • Ball's Pyramid
    • Admiralty Group
  • Milson Island, in the Hawkesbury River
  • Montague Island, 9 kilometres (5.6 mi) east of Narooma on the south coast
  • Muttonbird Island, off Coffs Harbour
  • Oxley Island
  • Pinchgut - see Fort Denison, a former penal site and defensive facility in Sydney Harbour
  • Pulbah Island, the largest island in Lake Macquarie
  • Rodd Island, a small island in the Parramatta River
  • Scotland Island, in the north of Sydney
  • Shark Island, in Sydney Harbour
  • Snapper Island, in Sydney Harbour
  • Spectacle Island, in the Hawkesbury River
  • Spectacle Island, in Sydney Harbour
  • Solitary Islands
  • Wasp Island, the only island in Durras Inlet near Batemans Bay
  • Wedding Cake Island, a small island of the coast of Coogee
  • Windang Island, a small island at the entrance to Lake Illawarra
  • Woodford Island, in the Clarence River on the far north coast

Northern Territory

  • Bathurst Island
  • Bickerton Island
  • Crocodile Islands
  • Croker Island
  • Elcho Island
  • Goulburn Islands
  • Groote Eylandt - Dutch for "Big Island" - Australia's 4th largest island
  • Howard Island
  • Martjanba Island
  • Melville Island, the second largest island in Australia
  • Quail Island
  • Sir Edward Pellew Group
  • Tiwi Islands
  • Vanderlin Island
  • Wessel Islands


Whitsunday Island - Whitehaven Beach 01
Whitehaven Beach, Whitsunday Island, 2008

South Australia

AUS Kangaroo-Island Remarkable-Rocks
Remarkable Rocks on Kangaroo Island, 2007
Greenly Island - State Library of South Australia PRG-280-1-1-120
Greenly Island; a distant view taken from the sea (circa 1903) (State Library of South Australia PRG 280/1/1/120)
Chinamans Hat Island
Chinamans Hat Island as viewed from the nearby coastline
Pearson Isles, South Australia (State Library of South Australia PRG-280-1-12-263)
View of Pearson Island from its south end circa 1914 (State Library of South Australia PRG-280-1-12-263)

Ocean islands

  • Althorpe Islands
    • Haystack Island
    • Seal Island (Investigator Strait)
  • Beatrice Islets
  • Bicker Isles
  • Bird Islands
  • Boston Island
  • Busby Islet
  • Casuarina Islets
  • Chinamans Hat Island
  • Curlew Island
  • Douglas Rock
  • Entrance Island
  • Gambier Islands
  • Garden Island
  • Goose Island
  • Granite Island
  • Grantham Island
  • Greenly Island
  • Grindal Island
  • Investigator Group
  • Jones Island
  • Kangaroo Island, Australia's third-largest island
  • Liguanea Island
  • Lipson Island
  • Louth Island
  • Neptune Islands
  • Nicolas Baudin Island
  • Nobby Islet
  • Nuyts Archipelago
    • St Francis Island
    • St Peter Island
    • Smooth Island
  • Middle Island
  • Owen Island
  • Paisley Islet
  • Pelorus Islet
  • Pullen Island
  • Rabbit Island, Coffin Bay
  • Rabbit Island, Louth Bay
  • Rabbit Islet, Pelican Lagoon
  • Royston Island
  • St Francis Island
  • St Peter Island
  • Shag Island
  • Sir Joseph Banks Group
    • Blyth Island
    • Boucaut Island
    • Dalby Island
    • Dangerous Reef
    • Duffield Island
    • English Island
    • Hareby Island
    • Kirkby Island
    • Langton Island
    • Lusby Island
    • Marum Island
    • Partney Island
    • Reevesby Island
    • Roxby Island
    • Seal Rock
    • Sibsey Island
    • Spilsby Island
    • Stickney Island
    • Winceby Island
  • Seal Island (Encounter Bay)
  • South Island
  • Taylor Island
  • Thistle Island
  • Torrens Island
  • Troubridge Island
  • Tumby Island
  • Unnamed island, Baird Bay
  • Wardang Island
  • Wedge Island
  • Weeroona Island
  • West Island
  • Wright Island

Murray River islands


Currie Harbour-King Island-Australia
Currie harbour on King Island, 2007

Tasmania is a large island state off the south coast. The main island (which includes 94% of the state's land area) does not have a defined name but is often referred to as the "Tasmanian mainland".


Westcoast Phillip Island Victoria
Phillip Island, 2003
  • Anser Island
  • Barrallier Island
  • Bennison Island
  • Chinaman Island
  • Churchill Island
  • Corner Island
  • Duck Island
  • Elizabeth Island
  • French Island
  • Gabo Island
  • Griffiths Island
  • Joe Island
  • Kanowna Island
  • Lady Julia Percy Island
  • Mud Islands
  • Norman Island
  • Phillip Island
  • Raymond Island
  • Rotamah Island
  • Sandstone Island
  • Shellback Island
  • Snake Island
  • Sunday Island
  • Swan Island
  • Tullaberga Island
  • Mangrove Islet

River islands

  • Beveridge Island
  • Coode Island
  • Gunbower Island
  • Herring Island
  • Jordans Island
  • Pental Island

Western Australia

View of the Recherche Archipelago from Dempster Head
Middle Island 1 Recherche Archipelago NR IV-2011
Middle Island, Recherche Archipelago 2011

Over 1,000 islands have been gazetted – only the island groups and major islands are listed.

Australian Territories

Jervis Bay Territory

  • Bowen Island

Australian Capital Territory

  • Aspen Island
  • Pine Island
  • Spinnaker Island
  • Springbank Island

External Territories

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List of islands of Australia Facts for Kids. Kiddle Encyclopedia.