The Australian continent contains only one country, called Australia. The country is over 7.6 square kilometers in size, making it the sixth largest country in the world.
The country is divided into six states that are part of the Commonwealth of Australia, though there are areas not strictly contained within these states that are still in the country. These other areas are called territories. It is possible for these territories to become states if the government approves it. The six states were originally British colonies, but in 1901 they came together to form one country and became modern day Australia.