Explore Luxembourg - A Nation of 639321 People. Luxembourg (LU) is a diverse and thriving country spanning 2586 km² (998 sq mi). With a population density of 247 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, Luxembourg stands out as a global destination. Stay informed about Luxembourg’s geographic insights, demographic trends, and more. Discover why Luxembourg is a key player on the world stage today!