- Juba is the capital and largest city of South Sudan, a country located in northeastern Africa. It is situated on the White Nile River and has a population of approximately 1.5 million people. Juba is an important political, economic, and cultural center in South Sudan and serves as a hub for transportation and trade in the region. The city has faced challenges due to years of civil war and its aftermath, but it is slowly recovering and developing. Juba is home to various government institutions, international organizations, and foreign embassies. It also has markets, hotels, restaurants, and other amenities for residents and visitors.