Explore Australia - A Nation of 25921089 People. Australia (AU) is a diverse and thriving country spanning 7692024 km² (2969890 sq mi). With a population density of 3 people per km², it offers a unique blend of cultural heritage, economic opportunities, and breathtaking landscapes. Whether you're interested in tourism, business, or history, Australia stands out as a global destination. Stay informed about Australia’s geographic insights, demographic trends, and more. Discover why Australia is a key player on the world stage today!