
Western Australia is bounded to the north and west by the Indian Ocean, and to the south by the portion of the Indian Ocean commonly called the Southern Ocean (or Antarctic Ocean) in Australia. The International Hydrographic Organization (IHO) designates the body of water south of the continent as part of the Indian Ocean, while in Australia it is officially gazetted as the Southern Ocean. Western Australia has long argued in Canberra that it should have a stronger defence outlook into the Indian Ocean.
| Characteristics | Values |
|---|---|
| Location of Western Australia | Westernmost state of Australia |
| Directional boundaries of Western Australia | Bounded by the Indian Ocean to the north and west, the Southern Ocean to the south, the Northern Territory to the northeast, and South Australia to the southeast |
| Total area | 2.5 million km2 (970 thousand sq mi) |
| Population | 2.965 million (as of June 2024) |
| Population distribution | Over 90% of the population lives in the southwest corner, and around 80% in the state capital, Perth |
| Coastal length | 20,781 km (12,913 mi) of coastline, including 7,892 km (4,904 mi) of island coastline |
| Economic significance | Western Australia is a major economic driver for the nation, particularly through iron ore and other mineral exports to China and the world |
| Tourism | Western Australia has significant international tourism, with the UK, Singapore, and New Zealand among the top source markets |
| Indian Ocean relevance | Western Australia is Australia's primary connection to the Indian Ocean, with Perth recognized as the Indian Ocean capital |
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What You'll Learn
- Western Australia is bounded by the Indian Ocean to the north and west
- The Southern Ocean borders Western Australia to the south
- The Indian Ocean is a complex mass of cultures, polities, and outlooks
- Western Australia is Australia's largest state
- Perth, the capital of Western Australia, is a coastal city

Western Australia is bounded by the Indian Ocean to the north and west
The bulk of Western Australia consists of the extremely old Yilgarn Craton and Pilbara Craton, which merged with the Deccan Plateau of India and cratons of Southern Africa in the Archean Eon to form Ur, one of the oldest supercontinents on Earth. The state's ecoregions include the sandstone gorges of the Kimberley on the northern coast, the Victoria Plains tropical savanna inland, and the semi-desert Pilbara shrublands to the southwest.
The Indian Ocean has long been a major link in the global intelligence-gathering system, and Western Australia has argued for a stronger defence outlook into the region. The state has the world's biggest plantations of Indian sandalwood, which is used to produce sandalwood oil and incense. Tourism is also a significant contributor to the state's economy, with many visitors attracted to its natural features such as the limestone pinnacles in Nambung National Park and the rugged granite coastline of the Stirling Range.
The International Hydrographic Organization (IHO) designates the body of water south of the continent as part of the Indian Ocean, while in Australia, it is officially gazetted as the Southern Ocean. Western Australia's capital, Perth, is considered the nation's "Indian Ocean capital".
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The Southern Ocean borders Western Australia to the south
Western Australia is bounded to the north by the Timor Sea, to the northwest and west by the Indian Ocean, and to the south by the Southern Ocean (also known as the Antarctic Ocean or the Indian Ocean depending on the source). The Southern Ocean is a proposed ocean surrounding Antarctica, dominated by the Antarctic Circumpolar Current. It is generally considered to be the ocean south of 60 degrees south latitude.
In Australia, cartographic authorities have defined the Southern Ocean as including the entire body of water between Antarctica and the south coasts of Australia and New Zealand. Coastal maps of Tasmania and South Australia label the sea areas as the Southern Ocean, while Cape Leeuwin in Western Australia is described as the point where the Indian and Southern Oceans meet. The Great Australian Bight is defined as the only geographical entity between the Australian coast and the Southern Ocean.
The Southern Ocean's narrowest point is the Drake Passage, a strait that spans 600 miles (about 1,000 km) in width, positioned between South America and the tip of the Antarctic Peninsula. The Nullarbor Plain terminates at the Southern Ocean in an unbroken line of spectacular coastal cliffs. To the west of the plain, the scarp of the Darling Range runs north-south for some 200 miles (320 km), separating the Yilgarn block from the coastal plain of the Perth Basin.
In the extreme south, the block rises to an elevation of 3,596 feet (1,096 meters) in the Stirling Range and then drops abruptly into the ocean, resulting in a rugged granite coastline with clean, white sandy bays. Archipelagoes of granite islands occur offshore.
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The Indian Ocean is a complex mass of cultures, polities, and outlooks
Western Australia is bounded to the north and west by the Indian Ocean. The International Hydrographic Organization (IHO) designates the body of water south of the continent as part of the Indian Ocean, while in Australia, it is officially gazetted as the Southern Ocean. Western Australia has a diverse range of climates, including tropical conditions in the Kimberley, deserts in the interior, and a Mediterranean climate in the coastal areas. It is the country's major connection with the Indian Ocean and is home to diverse cultures and polities.
The Indian Ocean is indeed a complex mass of cultures, polities, and outlooks. The proliferation of dhow sails in Stone Town harbour, for example, is a reminder that global trade and politics have been present in the Western Indian Ocean for generations. The Indian Ocean is also a rising world hotspot, with the new Western rush to India driven by a reaction to China's growing power and a realisation that India is also on the rise. Japan's interest in the Indian Ocean has also grown, as half of its trade relies on access to the ocean.
Western Australia, being a major connection to the Indian Ocean, has a diverse range of cultures and outlooks. The state has the world's biggest plantations of both Indian and Australian sandalwood, which contribute significantly to the international sandalwood oil market. Tourism is also a major part of the Western Australian economy, with international visitors attracted to the state's natural attractions, such as the limestone pinnacles in Nambung National Park and the sandstone gorges of the Kimberley.
The Indian Ocean region is essential to Australia's security and prosperity, and the country has been strengthening its engagement in the region. Australia has established a High Commission in the Maldives and a Consulate-General in Bengaluru, and has been working with regional partners in the Indian Ocean Rim Association (IORA) to support their resilience, sovereignty, and economic aspirations. Western Australia's government has also committed to investing more in defence industries, recognising the importance of the Indian Ocean to the country's defence outlook.
In conclusion, the Indian Ocean is indeed a complex mass of cultures, polities, and outlooks, and Western Australia, as the country's major connection to the ocean, embodies this complexity. The state's diverse range of cultures, economies, and natural attractions contribute to the overall complexity and importance of the Indian Ocean region.
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Western Australia is Australia's largest state
Western Australia is bounded by the Indian Ocean to the north and west, the Southern Ocean to the south, the Northern Territory to the northeast, and South Australia to the southeast. It is Australia's largest state, occupying roughly one-third of the total area of the continent. It has a land area of 2,527,013 square kilometres (975,685 sq mi) and is the second-largest subdivision of any country on Earth.
The state extends about 1,490 miles (2,400 km) from the tropical north to the coastal heaths of the far south. Most of the state is subarid, with low rainfall and high temperatures. As a result, most of the population and agricultural activities are concentrated in the southwest of the state, in a zone commonly referred to as the "comfortable zone". Over 90% of the state's population lives in this southwestern corner, and around 80% live in the state capital, Perth, leaving the remainder of the state sparsely populated.
Western Australia has a diverse range of climates and ecoregions. The Kimberley region in the north has a tropical climate, while the interior of the state is home to several deserts, including the Great Sandy Desert, Little Sandy Desert, Gibson Desert, and Great Victoria Desert. The southwest and southern coastal areas have a Mediterranean climate, and the state also includes semi-arid shrublands and savanna regions.
The state has a significant sandalwood industry, providing about 40% of the international sandalwood oil market. Tourism is also a major part of the economy, with international visitors attracted to the state's natural attractions, such as the limestone pinnacles in Nambung National Park and the sandstone gorges of the Kimberley.
Western Australia's connection to the Indian Ocean is also important. The state's capital, Perth, has been referred to as Australia's "Indian Ocean capital". The region is essential to Australia's security and prosperity, and the country has been strengthening its engagement with the Indian Ocean Rim Association (IORA).
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Perth, the capital of Western Australia, is a coastal city
Perth is the capital of Western Australia, a state that occupies the western portion of the Australian continent. Bounded by the Indian Ocean to the north and west, the Southern Ocean to the south, the Northern Territory to the northeast, and South Australia to the southeast, Western Australia is the country's westernmost state.
Perth, as the capital, is situated on the coast of Western Australia, overlooking the Indian Ocean. The city is nestled on the Swan Coastal Plain, which stretches along the state's western coastline. This coastal setting provides Perth with a Mediterranean climate, distinct from other regions of Western Australia known for their tropical or desert conditions.
Being a coastal city, Perth has a strong connection to the Indian Ocean. It serves as a gateway to the ocean, making it a significant location for trade and international engagement. The city has hosted international conferences, such as the Indian Ocean Conference in partnership with the India Foundation and the Perth US-Asia Centre, further emphasizing its role in regional affairs.
The coastal location of Perth also contributes to its economic development, particularly in the tourism sector. Many of Western Australia's tourist attractions are found along the coast, and Perth, with its convenient access to the Indian Ocean, plays a vital role in promoting and supporting the state's tourism industry.
In addition to its economic significance, the coastal aspect of Perth offers a unique blend of natural beauty and urban development. The city's coastline features rugged granite formations, clean sandy bays, and the Swan River, which flows through the city and out into the Indian Ocean. This coastal landscape provides a stunning backdrop to Perth's urban environment, creating a distinct character that sets it apart from other Australian cities.
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Frequently asked questions
Yes, Western Australia is bounded by the Indian Ocean to the north and west.
Western Australia is also bounded by the Timor Sea to the north and the Southern Ocean to the south.
The capital of Western Australia is Perth.
As of June 2024, Western Australia had a population of 2.965 million people.




















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