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San Vittore Olona: what to know before buying a home

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

Liveability index free for any address

Search for an address in San Vittore Olona

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: Strada Statale 33 del Sempione 1, San Vittore Olona.

San Vittore Olona, the Cinque Mulini race next to Legnano

San Vittore Olona is joined onto Legnano, so much so that visitors take the two for a single town. It is named after the river Olona, which crosses it from north to south, and along the river stand the old mills that give their name to the Cinque Mulini ("five mills"), the international cross-country race held here for almost a century, run right past those buildings.

This is part of the Legnano area, densely packed with homes and businesses: about half the land is built on. There is no station in the municipality; trains leave from Legnano or Canegrate, on the line linking Milan with Gallarate. By car there is the Sempione main road, which runs through Legnano, and the Milan to the lakes motorway with its Legnano exit.

The population has been flat for years: 8,321 residents in 2023, up 0.8% on 2011. The estimated average age is 46.3 and over-65s make up 23.8%, slightly above the provincial average. Foreign residents account for 11.2%. Declared incomes are below the average for the Metropolitan City of Milan, which the city keeps very high.

For earthquakes, San Vittore Olona is in zone 4, the lowest, like 72 other municipalities in the province. The expected ground acceleration is about 0.039 g. The building's structure matters less than other points: damp, the systems, the energy rating and service charges.

The river, on the other hand, needs watching. The Olona has burst its banks several times in the past in the towns around Legnano, and the areas nearest the riverbed deserve the closest look. The report finds the plot on the Revenue Agency (Agenzia delle Entrate) cadastral maps and checks flood-prone areas on the official maps for the address.

Key points

  • Joined onto Legnano; home of the Cinque Mulini cross-country race.
  • Stable population, 8,321 in 2023; foreign residents 11.2%.
  • Seismic zone 4, the lowest in the classification.
  • Near the Olona, flood hazard should be checked by address.

Overview

San Vittore Olona is a municipality in the province of Milano, in Lombardia. At the end of 2023 it had 8,321 residents, ranked 75 of 133 municipalities in the province.

Earthquakes

For Italy's Civil Protection Department, San Vittore Olona is in seismic zone 4, the lowest-risk zone, where strong earthquakes are very rare. Most municipalities in the province (73 of 133) are in the same zone.

In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.039 g, a low value: the level with a 10% probability of being exceeded in 50 years, on rock.

In zone 4 the risk is low, but for an older building it is still worth asking about the state of the structure.

Population

Compared with the 2011 census, the number of residents is nearly unchanged. The estimated average age is 46 years, in line with the province. 24% of residents are over 65 (the regional figure is 24%). Foreign residents make up 11.2% of the population. On average, a household has 2.3 members.

Income and climate

In tax year 2024, taxpayers in San Vittore Olona declared an average taxable income of 27,505 euros, below the provincial average (33,635 euros). The Italian average is 24,895 euros.

San Vittore Olona is in climate zone E, with 2,448 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 197 metres above sea level.

Services

In the official Ministry of Education and Ministry of Health lists, San Vittore Olona has 5 schools and 2 pharmacies. The Overture Maps data also lists 7 grocery shops and supermarkets, 1 healthcare facility and 11 sports facilities.

There are 0.1 healthcare facilities per 1,000 residents, fewer than the province average (0.8).

Public transport

The open timetables available for the area do not list any stops within the territory of San Vittore Olona.

How built-up it is

Buildings, roads, car parks and other sealed surfaces cover 50.5% of the land in San Vittore Olona, compared with 32.0% in the province and 12.2% in the region. In 2024 built-up land grew by 10.6 hectares.

Radon and contaminated sites

San Vittore Olona is not among the radon priority areas designated by the Regione Lombardia in 2023. According to the ISPRA map, the estimated radon emission in the municipality is medium. 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 open contaminated sites in San Vittore Olona; 2 have been cleaned up or closed.

Landslides and flooding

Landslide and flood hazard changes from one street to the next even within San Vittore Olona: 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 San Vittore Olona 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 25 inhabited census areas in San Vittore Olona. Half of the residents live in areas scoring 72 or more.

Residents by band

  • fair 2.9%
  • good 97.1%

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 015201. The text on this page is generated automatically from the data.