Tromello: what to know before buying a home
A municipality in the province of Pavia, Lombardia. Official data on earthquakes, population, services and transport.
Liveability index free for any address
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Search for an address in Tromello
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 Giovanni Salvadeo 1, Tromello.
Tromello, rice fields and a railway station in the Lomellina
Tromello has the landscape of the Lomellina, the rice-growing plain of south-west Lombardy: flat land at about 100 metres, paddies that are flooded in spring, farmsteads, irrigation ditches and rows of poplars. The town is in the middle of the area, on the route between Mortara and Pavia, and for work and services people look to Pavia, Mortara and Vigevano.
Tromello has a railway station served by regional trains, and there is a bus link as well, so anyone working in Pavia or further afield should check timetables and connections before choosing. Homes are mostly traditional village houses built around a courtyard, with outbuildings, plus newer detached houses on the edges and farmsteads in the countryside, often large and in need of renovation. With the water table close to the surface and rice fields all around, damp in walls and cellars deserves a careful look.
In 2023 there were 3,666 residents, down 4.2% on 2011 according to Istat, the national statistics office. The population is a little younger than the provincial average: an average age of 46.6 against 47.1, and over-65s at 23.6% against 25.2%. Foreign residents make up 8.5%. Declared incomes are below the average for the province of Pavia.
Seismic hazard is low. Tromello is in zone 3 of the Civil Protection classification (the national emergency agency), like 156 other municipalities in the province, with an expected acceleration of about 0.050 g, one of the lowest values in that zone. In a courtyard house the roof, the masonry and the insulation matter more. On a plain full of irrigation water and canals, the report checks the official flood maps for the address.
Key points
- Plain of rice fields and farmsteads in the central Lomellina.
- Railway station with regional trains, plus a bus link.
- 3,666 residents, average age 46.6.
- Seismic zone 3, low expected acceleration, about 0.050 g.
Overview
Tromello is a municipality in the province of Pavia, in Lombardia. At the end of 2023 it had 3,666 residents, ranked 32 of 184 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, Tromello is in seismic zone 3, a zone where strong earthquakes are possible but rare. Most municipalities in the province (157 of 184) are in the same zone.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.050 g, a low value: the level with a 10% probability of being exceeded in 50 years, on rock.
Even in zone 3, seismic standards apply to new buildings: for an older building, ask about the design year and any structural work.
Population
Compared with the 2011 census, the resident population has fallen by 4.2%. The estimated average age is 47 years, in line with the province. 24% of residents are over 65 (the regional figure is 24%). Foreign residents make up 8.5% of the population. On average, a household has 2.2 members.
Income and climate
In tax year 2024, taxpayers in Tromello declared an average taxable income of 23,956 euros, below the provincial average (26,290 euros). The Italian average is 24,895 euros.
Tromello is in climate zone E, with 2,619 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 97 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Tromello has 3 schools and 1 pharmacy. The Overture Maps data also lists 3 grocery shops and supermarkets, 1 healthcare facility and 3 sports facilities.
There are 0.3 healthcare facilities per 1,000 residents, fewer than the province average (0.7).
Public transport
Within the municipality there are 1 public transport stops, served by 1 bus line, 1 train line. That is about 0.3 stops per 1,000 residents.
How built-up it is
Buildings, roads, car parks and other sealed surfaces cover 7.0% of the land in Tromello, compared with 9.6% in the province and 12.2% in the region. In 2024 built-up land stayed almost the same.
Radon and contaminated sites
Tromello is not among the radon priority areas designated by the Regione Lombardia in 2023. Radon varies from building to building and can only be known by measuring it, especially on ground floors and in basements.
Official databases list 2 contaminated sites, or sites still under investigation, in Tromello, and 3 more have been cleaned up or closed. 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 Tromello: 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 Tromello 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 55 inhabited census areas in Tromello. Half of the residents live in areas scoring 71 or more.
Residents by band
- modest 0.0%
- fair 25.0%
- good 75.0%
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.
- Public transport timetables (GTFS): Trenord, Regione Lombardia - Trenord, orari ferroviari (GTFS). Licence CC BY 4.0, version 20261111.
- 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.
- Radon priority areas (Legislative Decree 101/2020), Regione Lombardia, national list compiled by ARPA Lombardia. Licence Atto pubblico (art. 5 L. 633/1941), 2023.
- Contaminated sites, Regione Lombardia. Licence CC0 1.0 (pubblico dominio), updated to 15 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 018164. The text on this page is generated automatically from the data.