Explore Reunion - A Nation of People. Reunion (RE) is a diverse and thriving country spanning km² ( sq mi). With a population density of 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, Reunion stands out as a global destination. Stay informed about Reunion’s geographic insights, demographic trends, and more. Discover why Reunion is a key player on the world stage today!