Culiacán ( kuljaˈkan ) is a city in northwestern Mexico, the largest city in the state of Sinaloa as well as its capital and capital of the municipality of Culiacán. With 675,773 inhabitants in the city (census of 2010), and 858,638 in the municipality. While the municipality has a total area of 4,758 km (1,837 sq mi), the city itself is dense, at only 65 km (25 sq mi).