Province of Grosseto

The Province of Grosseto completely occupies the southern end of Tuscany, and with a territorial area of 4,504 square kilometres (1,739 mi²), it is the most extensive in the region and one of the least dense in population in Italy. The province is bordered to the northwest by the Province of Livorno, to the north by the Province of Pisa, to the northeast by the Province of Siena, and to the southeast by the Province of Viterbo in Lazio. To the south is the Tyrrhenian Sea, which includes the southern islands of the Tuscan archipelago, including Isola del Giglio^[4] and the smaller Giannutri islands and Formiche di Grosseto and Formica di Burano. The Arcipelago Toscano National Park spans both the provinces of Grosseto and Livorno, and includes the seven main islands of the Tuscan Archipelago: Elba, Isola del Giglio, Capraia, Montecristo, Pianosa, Giannutri, Gorgona, and some of the minor islands and rock outcrops.^[5] The highest point in the park is Mount Capanne, at 1,019 metres (3,343 ft) in elevation, on the island of Elba.^[6]

The Colline Metallifere (Metalliferous Hills) line the border in the south with Lazio, and contain the Natural Park of Maremma, that protects also some of the remainings of the large swamps that once covered the area. Other protected areas are the Diaccia Botrona marshland.^[7] The principal rivers are the Ombrone,^[8] Fiora, Albegna, Pecora, Bruna, Merse, Lente [it], Farma and Chiarone. The coastline between the Gulf of Follonica and the mouth of the Chiarone is dominated by blue waters and pine forests, and is home to resorts such as Marina di Grosseto, Principina a Mare, Castiglione della Pescaia, Punta Ala, Puntone di Scarlino and Talamone.^[9] Lakes include Lago dell'Accesa, Lago di Burano, Lago di San Floriano and Lago Acquato. Also of note is the volcanic cone of Mount Amiata, Bandite di Scarlino (213 m), Promontorio di Punta Ala e delle Rocchette (350 m), Monti dell'Uccellina (417 m), Monte Argentario (635 m), and Promontorio di Ansedonia (113 m).

As of 2026, the population is 214,863, of which 48.9% are male, and 51.1% are female. Minors make up 12.5% of the population, and seniors make up 29.6%.^[2]