Subdivisions of San Marino

Montegiardino (; Romagnol: Munt Giardêin) is one of the nine castelli of San Marino. It occupies an area of and is the smallest castello in the country by both land area and population. As of 2023, it had a population of 1,015 inhabitants.

Fiorentino (Romagnol: Fiurentêin) is one of the nine castelli of San Marino. It occupies an area of and is the fourth smallest castello in the country by land area. As of 2023, it had a population of 2,615 inhabitants.

type administrative division of San Marino