The Republic of San Marino comprises nine castelli (lit.'castles') as its first-level administrative divisions.[1] Each castle is led by a castle captain (Italian: capitano di castello) and a castle council (giunta di castello), elected every five years.[2]
Like Italian comuni, each castello has a capital (capoluogo), with other population centers sorted into curazie (equivalent to Italian frazioni).[2] The country contains 44 curazie (sing. curazia), the lowest administrative unit beneath its castelli.[1]Valdragone and Cailungo are divided into two curazie each, labelled di Sotto and di Sopra.