Bagnoli del Trigno: what to know before buying a home
A municipality in the province of Isernia, Molise. Official data on earthquakes, population, services and transport.
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Search for an address in Bagnoli del Trigno
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 Roma 1, Bagnoli del Trigno.
Bagnoli del Trigno, a village among the rocks above the Trigno
Bagnoli del Trigno's houses are built among outcrops of rock, with the castle at the top and lanes stepping down towards the Trigno valley. It is a landscape shared by many villages in Molise, but particularly striking here: arriving, you see the rock first and the village second.
That shape has practical consequences for buyers. In the old centre many houses are on several levels, leaning against the stone, with pedestrian access and little room for a car. Before buying, check for damp, the state of the roof and how walls and floors are tied together. Elevation, slope and the official landslide maps are read in the report for the exact location of the house.
The village had 621 residents in 2023, against 772 in 2011, a fall of 19.6% according to Istat, the national statistics institute. Over-65s make up 34.1%, against 27.6% in the province of Isernia, and the estimated average age is 49.6. There are 8.05 bars and restaurants per 1,000 residents, against 5.49 in the province. Average declared income is below the provincial average.
Earthquake hazard is medium to high. Bagnoli del Trigno is in seismic zone 2 of the Civil Protection (Protezione Civile) classification, like 20 municipalities in the province, while the other 32 are in zone 1. Expected ground acceleration in the village is about 0.221 g. For old masonry houses it helps to ask what work has been done and have an engineer assess it.
The Revenue Agency (Agenzia delle Entrate) publishes the cadastral maps, and the report traces the address to its land parcel and building.
Key points
- Village built among rocks above the Trigno valley.
- 621 residents, down 19.6% since 2011.
- Over-65s at 34.1%, against 27.6% in the province.
- Seismic zone 2, expected acceleration about 0.221 g.
Overview
Bagnoli del Trigno is a municipality in the province of Isernia, in Molise. At the end of 2023 it had 621 residents, ranked 32 of 52 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, Bagnoli del Trigno is in seismic zone 2, a zone where strong earthquakes are possible. Only 20 of 52 municipalities in the province are in zone 2.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.221 g, a medium-high value: the level with a 10% probability of being exceeded in 50 years, on rock.
For anyone buying in Bagnoli del Trigno, 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 19.6%. The estimated average age is 50 years, higher than the province average (48). 34% of residents are over 65 (the regional figure is 27%). Foreign residents make up 6.3% of the population. On average, a household has 2.0 members.
Income and climate
In tax year 2024, taxpayers in Bagnoli del Trigno declared an average taxable income of 15,366 euros, below the provincial average (20,102 euros). The Italian average is 24,895 euros.
Bagnoli del Trigno is in climate zone E, with 2,263 heating degree days: heating may be switched on from 15 October to 15 April, for up to 14 hours a day. The same table puts the town hall at 660 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Bagnoli del Trigno has 3 schools and 1 pharmacy. The Overture Maps data also lists 1 sports facility.
The data shows no grocery shops and supermarkets within the municipality, against a provincial average of 1.0 per 1,000 residents.
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 3.0% of the land in Bagnoli del Trigno, compared with 3.4% in the province and 4.0% in the region. In 2024 built-up land stayed almost the same.
Radon and contaminated sites
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 no contaminated sites in Bagnoli del Trigno.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Bagnoli del Trigno: 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 Bagnoli del Trigno 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 15 inhabited census areas in Bagnoli del Trigno. Half of the residents live in areas scoring 60 or more.
Residents by band
- modest 6.0%
- fair 94.0%
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
- Seismic classification of municipalities, Dipartimento della Protezione Civile. Licence CC BY 4.0, updated to 2025-05.
- MPS04 seismic hazard model, INGV. Licence CC BY 4.0, 2004 model.
- Data by census section, Istat. Licence CC BY 4.0, residents at the end of 2023, compared with the 2011 census.
- Places, Overture Maps Foundation. Licence CDLA Permissive 2.0 and others depending on provider, release 2026-10-21.0.
- Income and main IRPEF variables by municipality, MEF, Dipartimento delle Finanze. Licence CC BY 3.0 IT, tax year 2024.
- Climate zones and heating degree days of municipalities (Presidential Decree 412/1993, Annex A), Normattiva. Licence CC BY 4.0, current text.
- Land take, territorial dynamics and ecosystem services, ISPRA e SNPA. Licence CC BY 4.0, 2024 data.
- Predictive radon map by municipality, ISPRA. Licence CC BY 4.0, version 2022-11.
- Contaminated sites, ISPRA, MOSAICO - Banca dati nazionale dei siti oggetto di procedimento di bonifica. Licence CC BY 4.0, updated to 12 November 2026.
- Liveability index by census area, Vicinalia, from the data in the report sections. Licence CC BY-SA 4.0, worked out on 30 September 2026.
- List of Italian municipalities, Istat. Licence CC BY 4.0, updated to 21 February 2026.
ISTAT code 094003. The text on this page is generated automatically from the data.