The province of Frosinone () is a province in the region of Lazio in Italy. Its capital is the city of Frosinone.
It has a population of 460,266 in an area of across its 91 municipalities.
The province was established by royal decree on 6 December 1926 with territories belonging to the then provinces of Rome and Caserta. The areas of the then province of Caserta were the left valley of the Liri-Garigliano river, the district of Sora, the Valle di Comino, the district of Cassino, the Gulf of Formia and Gaeta, the Pontine Islands, which until then had been for centuries included in the Province called Terra di Lavoro, of the Kingdom of Naples (or of the Two Sicilies). Most of these territories were part of the ancient Latium adiectum.
History
The first traces of human presence in the provincial territory date back to prehistoric times: a famous skull of Homo erectus (Homo cepranensis, in the Prehistorical Museum of Pofi), dating from 800,000 years ago, constitutes the most ancient finding of the Homo species in Europe.
In historical times (the 10th-9th centuries BC), the area, previously occupied by the so-called Pelasgic civilization, was settled by Indo-European colonists. This arrival is referred to in numerous legends, such as those of Aeneas and Saturn. The latter, ousted by Olympus, was said to come to Lazio to help the men and found seven cities whose name begins with "A" (for example, Alatri and Anagni).
In the 7th century BC, the area of what is now the province entered the orbit of Rome, which made it the so-called Latium adiectum ("Adjoined Lazio"). However, Rome needed some 300 years to obtain a definitive victory against the Volsci and the Hernici. The territory was colonized by thousands of Latins and Romans without citizenship, unlike the areas on the coast, where there were mainly small colonies of Roman citizens. Also, the original inhabitants became Romanized after the Social and the Samnite Wars.
After the fall of the Western Roman Empire, the northern part of the province (officially referred to as Campagna since the 12th centuryMassimo Montanari, Storia medievale, Laterza, 2015) belonged to the Papal States, while the region south of the Liri orbited around the powers of Benevento and then Naples.
In the Middle Ages, the abbey of Monte Cassino was always a major landowner and a politically renowned element of the area. The southeastern part was a frontier area which was long claimed by the other major powers of the time, the Duchies of Benevento and Gaeta and the County of Aversa: annexed to the Kingdom of Naples under the Normans (12th century), from the late 14th century it became part of the county and then, with an independent status, of the Duchy of Sora. Pontecorvo remained a Papal enclave from 1463.
More than 50 years after the 1871 unification of Italy, the Fascist government made Frosinone the capital of a province which unified different areas that belonged to the Papal and Neapolitan states. This action generated criticism, as these states were considered too different in history, language and culture, especially by the Bourbon-nostalgic party that maintained a strong position in southern Italy for many decades.
The creation of a new province, with capitals in Cassino, Formia and Sora, and comprising the former territories of the Kingdom of Naples, has been proposed.
Geography
The province largely follows the territory of the low and middle Latin Valley, a larger region that extends from south of Rome to Cassino.Giuseppe Ponzi, Osservazioni geologiche fatte lungo la Valle Latina, Roma, 1849; Sabrina Pietrobono, I monasteri della Media Valle Latina (Frosinone): aspetti topografici e scelte insediative, in Letizia Ermini Pani, Committenza, scelte insediative e organizzazione patrimoniale nel Medioevo, Atti del Convegno di studio, Tergu 15-17 settembre 2006, Centro Italiano di Studi sull'Alto Medioevo, Spoleto, 2007, p. 472; Antonello Angelucci, La serie miocenica nella media Valle Latina (Frosinone), in "Geologica Romana", V, 1966; Italy, Volume 1, Naval Intelligence Division (of the United Kingdom), 1944, p. 292 In the eastern area, on the other hand, the Comino Valley extends along the border with Abruzzo.
The territorial boundaries are mostly marked by mountain ranges: the Ernici Mountains to the north and the Lepini Mountains to the southwest, the Ausoni and Aurunci Mountains to the south, the Mainarde to the northeast.
The mountain system of the territory of the province of Frosinone follows the natural development of the mountain ranges of the Italian peninsula; the two main systems are part of the central Apennines to the north, and the Lazio pre-Apennines to the south, divided by the low and middle Latin Valley crossed by the Sacco and Liri rivers.
Government List of presidents
Municipalities
The province has 91 municipalities:
Acquafondata Acuto Alatri Alvito Amaseno Anagni Aquino Arce Arnara Arpino Atina Ausonia Belmonte Castello Boville Ernica Broccostella Campoli Appennino Casalattico Casalvieri Cassino Castelliri Castelnuovo Parano Castro dei Volsci Castrocielo Ceccano Ceprano Cervaro Colfelice Colle San Magno Collepardo Coreno Ausonio Esperia Falvaterra Ferentino Filettino Fiuggi Fontana Liri Fontechiari Frosinone Fumone Gallinaro Giuliano di Roma Guarcino Isola del Liri Monte San Giovanni Campano Morolo Paliano Pastena Patrica Pescosolido Picinisco Pico Piedimonte San Germano Piglio Pignataro Interamna Pofi Pontecorvo Posta Fibreno Ripi Rocca d'Arce Roccasecca San Biagio Saracinisco San Donato Val di Comino San Giorgio a Liri San Giovanni Incarico San Vittore del Lazio Sant'Ambrogio sul Garigliano Sant'Andrea del Garigliano Sant'Apollinare Sant'Elia Fiumerapido Santopadre Serrone Settefrati Sgurgola Sora Strangolagalli Supino Terelle Torre Cajetani Torrice Trevi nel Lazio Trivigliano Vallecorsa Vallemaio Vallerotonda Veroli Vicalvi Vico nel Lazio Villa Latina Villa Santa Lucia Villa Santo Stefano Viticuso
Demographics As of 2026, the population is 460,266, of which 49.3% are male, and 50.7% are female. Minors make up 14.0% of the population, and seniors make up 26.5%.
Immigration As of 2025, immigrants make up 8.1% of the population. The 5 largest foreign countries of birth are Romania, Albania, France, Morocco, and Ukraine.
Gallery
References
External links
Official Website