Oceania is a region that includes a group of islands in the Pacific Ocean, including Australasia, Melanesia, Micronesia, and Polynesia. The total land area of Oceania is about 8,525,989 square kilometers (3,291,903 square miles), which is relatively small compared to other continents. The population of Oceania is also relatively small, with an estimated total population of around 42 million people as of 2021.
The most populous country in Oceania is Australia, with a population of around 25 million people. Other countries in the region include New Zealand, Papua New Guinea, and Indonesia (in terms of area, Indonesia is mostly situated in Asia, but geographically some islands are also considered part of Oceania).
The geography of Oceania is diverse, with deserts, tropical rainforests, and high mountain ranges all present in the region. Oceania is also home to a wide variety of unique plant and animal life, many of which are found nowhere else on Earth.
In addition to its natural beauty, Oceania is known for its rich cultural heritage, with many indigenous cultures that have thrived for thousands of years. The region has also been shaped by the influences of European and Asian cultures, particularly in the areas of trade, colonization, and migration.