Valletta. Valletta, also known as Citt?? Umilissima, is the capital city of Malta and one of its 68 council areas. Located between the Grand Harbour to the east and Marsamxett Harbour to the west, its population as of 2021 was 5,157. As Malta's capital city, it is a commercial centre for shopping, bars, dining, and caf?? life. It is also the southernmost capital of Europe, and, at just 0.61 square kilometres (0.24??sq??mi), it is the European Union's smallest capital city.