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Casteggio: 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

Search for an address in Casteggio

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 Alessandro Manzoni 0, Casteggio.

Casteggio, gateway to the Oltrepò Pavese hills

Casteggio lies where the Po plain meets the first hills of the Oltrepò Pavese, the wine-growing area south of the river. It is an old place: this was Clastidium, mentioned by Roman historians for a battle against the Gauls. Today it acts as a small service centre for the hill villages, with shops, schools, offices and a railway station.

Public transport data show 1 railway stop served by 1 train line, plus 1 bus line. The railway runs across the plain between Voghera in one direction and Stradella and Piacenza in the other, and for people working elsewhere it is the easiest link. There are plenty of places to eat for a town this size: 8.51 bars and restaurants per 1,000 residents, against 4.35 in the province.

The population is older than average: 6,461 residents in 2023, down 5.5% on 2011 according to Istat, the national statistics office, with an average age of 49.3 against 47.1 for the province of Pavia and over-65s at 29.7%. Foreign residents make up 12.5%, and households are small, with 2.04 people on average.

Earthquake risk is modest. Casteggio is in seismic zone 3 on the Civil Protection Department's scale of 1 (highest) to 4, like 157 municipalities around Pavia, while the other 27 are in zone 4. Expected ground acceleration is about 0.089 g.

The ground matters more than tremors. The Oltrepò hills are made of clay and landslides are widespread, so for a house on the hillside, landslide risk is the first thing to check; on the plain, the streams running down to the Po are the concern. The report checks both for the address and, using the Revenue Agency's cadastral maps, identifies the land parcel.

Key points

  • Gateway to the Oltrepò Pavese, the ancient Clastidium.
  • 1 railway stop on the line between Voghera and Piacenza.
  • Over-65s at 29.7%, average age 49.3.
  • Clay hills: landslide risk before seismic zone.

Overview

Casteggio is a municipality in the province of Pavia, in Lombardia. At the end of 2023 it had 6,461 residents, among the most populous in the province (15 of 184).

Earthquakes

For Italy's Civil Protection Department, Casteggio 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 0.089 g, a moderate 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 5.5%. The estimated average age is 49 years, higher than the province average (47). 30% of residents are over 65 (the regional figure is 24%). Foreign residents make up 12.5% of the population. On average, a household has 2.0 members.

Income and climate

In tax year 2024, taxpayers in Casteggio declared an average taxable income of 25,195 euros, in line with the province (26,290 euros). The Italian average is 24,895 euros.

Casteggio 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 90 metres above sea level.

Services

In the official Ministry of Education and Ministry of Health lists, Casteggio has 3 schools and 3 pharmacies. The Overture Maps data also lists 5 grocery shops and supermarkets, 4 healthcare facilities and 1 sports facility.

There are 0.5 schools per 1,000 residents, fewer than the province average (0.9).

Public transport

Within the municipality there are 1 public transport stops, served by 1 bus line, 1 train line. That is about 0.2 stops per 1,000 residents.

How built-up it is

Buildings, roads, car parks and other sealed surfaces cover 15.7% of the land in Casteggio, 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

Casteggio 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 Casteggio. 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 Casteggio: 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 Casteggio 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 74 inhabited census areas in Casteggio. Half of the residents live in areas scoring 71 or more.

Residents by band

  • modest 0.2%
  • fair 29.2%
  • good 36.9%
  • very good 33.7%

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 018037. The text on this page is generated automatically from the data.