Oggiona con Santo Stefano: what to know before buying a home
A municipality in the province of Varese, Lombardia. Official data on earthquakes, population, services and transport.
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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 Bonacalza 1, Oggiona con Santo Stefano.
Oggiona con Santo Stefano, two villages between Gallarate and Varese
The name explains the place: two villages, Oggiona and Santo Stefano, run as a single municipality in the densely built southern part of the province of Varese, between Gallarate and Varese. Houses, workshops and roads run almost continuously from one municipality to the next, and the share of land covered by buildings is very high even by local standards.
Buyers will mostly find detached houses, small blocks of flats and restored farmhouses around courtyards in the old centres. Many residents work elsewhere: Gallarate, Busto Arsizio, the Malpensa airport area or Milan. The public transport data show no stops within the municipality itself, so it is worth checking, from the exact address, how far the nearest convenient station and motorway junction are. The data list 30 services in the town in total.
The population is steady: 4,338 residents in 2023 according to Istat, the national statistics office, up 1.0% on 2011. The average age is 46.1, slightly below the provincial figure of 46.5; over-65s make up 24.0% and foreign residents 7.3%. Declared incomes are a little below the provincial average.
Earthquake risk is low. All 136 municipalities in the province are in seismic zone 4, the lowest level of the national classification, and the expected ground acceleration is around 0.038 g. In a house from the 1960s or 1970s, the wiring and heating, insulation and roof condition matter more. Where so much ground is sealed by buildings and tarmac, the report also checks the official flood maps for the precise address.
Key points
- Two villages, Oggiona and Santo Stefano, between Gallarate and Varese.
- 4,338 residents, up 1.0% since 2011.
- Seismic zone 4 like the whole province, acceleration about 0.038 g.
- Heavily built-up land: flood maps worth checking by address.
Overview
Oggiona con Santo Stefano is a municipality in the province of Varese, in Lombardia. At the end of 2023 it had 4,338 residents, ranked 58 of 136 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, Oggiona con Santo Stefano is in seismic zone 4, the lowest-risk zone, where strong earthquakes are very rare. All 136 municipalities in the province are in the same zone.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.038 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 resident population has grown by 1.0%. 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 7.3% of the population. On average, a household has 2.4 members.
Income and climate
In tax year 2024, taxpayers in Oggiona con Santo Stefano declared an average taxable income of 26,049 euros, in line with the province (27,186 euros). The Italian average is 24,895 euros.
Oggiona con Santo Stefano is in climate zone E, with 2,530 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 293 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Oggiona con Santo Stefano has 4 schools and 1 pharmacy. The Overture Maps data also lists 2 grocery shops and supermarkets, 2 healthcare facilities and 8 sports facilities.
There are 0.5 healthcare facilities per 1,000 residents, fewer than the province average (0.7).
Public transport
The open timetables available for the area do not list any stops within the territory of Oggiona con Santo Stefano.
How built-up it is
Buildings, roads, car parks and other sealed surfaces cover 45.0% of the land in Oggiona con Santo Stefano, compared with 21.1% in the province and 12.2% in the region. In 2024 built-up land stayed almost the same.
Radon and contaminated sites
Oggiona con Santo Stefano 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 no open contaminated sites in Oggiona con Santo Stefano; one has been cleaned up or closed.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Oggiona con Santo Stefano: 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 Oggiona con Santo Stefano 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 13 inhabited census areas in Oggiona con Santo Stefano. Half of the residents live in areas scoring 77 or more.
Residents by band
- fair 0.3%
- good 83.0%
- very good 16.6%
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 012107. The text on this page is generated automatically from the data.