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Troia: what to know before buying a home

A municipality in the province of Foggia, Puglia. Official data on earthquakes, population, services and transport.

Liveability index free for any address

Search for an address in Troia

The report looks at the exact point: landslide and flood risk, seismic zone, price per square metre for the area, services and nearby stops.

For example: Via Regina Margherita 1, Troia.

Troia, a Romanesque cathedral on a ridge above the Tavoliere

Coming from Foggia, you see Troia from miles away. The town stretches along a ridge in the first foothills of the Monti Dauni, at around four hundred metres, looking down on the Tavoliere, the vast wheat-growing plain of northern Puglia. Foggia is about twenty kilometres away and remains the place people go for work, the hospital and public offices.

At the heart of the town is the cathedral, with a great rose window on its facade, one of the best-known examples of Puglia's Romanesque architecture. The old town follows the shape of the ridge, with one main street and lanes dropping away on either side; houses are masonry, often two or three storeys. Newer buildings sit at the two ends of town. Many buildings in the centre are old and some stand empty, so budget for work on roofs, wiring and plumbing, and facades before you buy.

In 2023 Troia had 6,602 residents according to Istat, the national statistics office, down 9.9% since 2011. The average age is 46.1, against 45.2 for the province of Foggia, and over-65s make up 24.7%. Foreign residents are 3.7%. Declared incomes are just above the provincial average.

The province of Foggia is among the most earthquake-prone parts of Puglia: 10 municipalities are in seismic zone 1 and 51, Troia included, in zone 2, on the scale used by the Civil Protection Department. The expected ground acceleration in the built-up area is about 0.144 g. For a masonry house in the centre, find out whether structural work has been done, whether the roof was rebuilt with heavy materials and whether any floors were added on top.

The Monti Dauni are largely clay, and their slopes are prone to landslides. For a house on the edge of the ridge, or out on the hillsides, the report checks slope and landslide hazard at the exact address. The Revenue Agency (Agenzia delle Entrate) publishes cadastral maps for Troia, and the report traces the address to its land parcel.

Key points

  • On a Monti Dauni ridge above the Tavoliere, about twenty kilometres from Foggia.
  • Romanesque cathedral with a great rose window.
  • Population down 9.9% since 2011.
  • Seismic zone 2, expected acceleration about 0.144 g.

Overview

Troia is a municipality in the province of Foggia, in Puglia. At the end of 2023 it had 6,602 residents, ranked 16 of 61 municipalities in the province.

Earthquakes

For Italy's Civil Protection Department, Troia is in seismic zone 2, a zone where strong earthquakes are possible. Most municipalities in the province (51 of 61) are in the same zone.

In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.144 g, a moderate value: the level with a 10% probability of being exceeded in 50 years, on rock.

For anyone buying in Troia, the building matters a great deal: ask for the design year, whether it met the 2008 seismic standards, and whether any seismic retrofit has been carried out.

Population

Compared with the 2011 census, the resident population has fallen by 9.9%. The estimated average age is 46 years, in line with the province. 25% of residents are over 65 (the regional figure is 24%). Foreign residents make up 3.7% of the population. On average, a household has 2.4 members.

Income and climate

In tax year 2024, taxpayers in Troia declared an average taxable income of 19,000 euros, in line with the province (18,478 euros). The Italian average is 24,895 euros.

Troia is in climate zone D, with 1,964 heating degree days: heating may be switched on from 1 November to 15 April, for up to 12 hours a day. The same table puts the town hall at 439 metres above sea level.

Services

In the official Ministry of Education and Ministry of Health lists, Troia has 5 schools and 2 pharmacies. The Overture Maps data also lists 1 grocery shop, 1 healthcare facility, 3 sports facilities and 1 green area.

There are 0.2 grocery shops and supermarkets per 1,000 residents, fewer than the province average (0.6).

Public transport

We do not yet have open public transport timetables for this municipality: the report says so explicitly, without inventing distances.

How built-up it is

Buildings, roads, car parks and other sealed surfaces cover 3.9% of the land in Troia, compared with 4.1% in the province and 8.2% in the region. In 2024 built-up land grew by 19.6 hectares.

Radon and contaminated sites

Troia is not among the radon priority areas designated by the Regione Puglia in 2025. According to the ISPRA map, the estimated radon emission in the municipality is low. Radon varies from building to building and can only be known by measuring it, especially on ground floors and in basements.

Official databases list one contaminated site, or site still under investigation, in Troia. The report tells you whether one is close to the address.

Landslides and flooding

Landslide and flood hazard changes from one street to the next even within Troia: the report checks the address against the ISPRA maps.

House prices

The Revenue Agency's price ranges per square metre (OMI) apply to zones, not to whole municipalities: the report gives the range for the address's zone.

Land registry

The cadastral maps for Troia are public: from the address the report finds the sheet and parcel number.

Liveability area by area

The Vicinalia liveability index runs from 0 to 100 and looks at the place, not the people who live there: services within walking distance, transport, green space, natural hazards, air, quiet, buildings and connection. Here it is worked out at the centre of each of the 203 inhabited census areas in Troia. Half of the residents live in areas scoring 61 or more.

Residents by band

  • modest 1.5%
  • fair 57.6%
  • good 40.9%

Vicinalia index by census area, licence CC BY-SA 4.0. Data: IdroGEO ISPRA (2026), Istat, INGV, EEA, AGCOM, Overture Maps and OpenStreetMap.

The colour is the value at the centre of the area. For an exact address, search for it above: the free check looks at that exact point. How the index is worked out

Data sources

ISTAT code 071058. The text on this page is generated automatically from the data.