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