Mignanego: what to know before buying a home
A municipality in the province of Genova, Liguria. Official data on earthquakes, population, services and transport.
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Search for an address in Mignanego
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 Angelo Gazzo 1, Mignanego.
Mignanego, the upper Polcevera valley below the Giovi pass
Heading up the Polcevera valley from Genoa towards the Giovi pass, you reach Mignanego, the last stretch of the valley before the watershed with the Po side of the Apennines. The valley is narrow and carries the A7 motorway to Milan, the Giovi railway and the old main road side by side. Above the village, on the mountain, stands the sanctuary of Nostra Signora della Vittoria, a pilgrimage site for the whole of Liguria.
Mignanego is a common choice for people who work in Genoa and want more space and lower prices, accepting the winding valley roads. The municipality is made up of several hamlets along the valley floor and on the slopes, with multi-storey masonry houses, small blocks and isolated homes reached by narrow lanes. Overture Maps data record 3 school sites, 1 pharmacy and 15 bars and restaurants; for hospital care and bigger shops, people go down towards Genoa.
Istat, the national statistics office, counted 3,538 residents in 2023, down 5.8% since 2011. The average age is 48.7, in one of the oldest provinces in Italy (49.0), and over-65s make up 27.7%. Foreign residents account for 5.3%. Average declared incomes are below the Genoa metropolitan average.
Earthquakes are a minor factor. Mignanego is in seismic zone 3 on the Civil Protection Department scale (the national emergency agency), like 63 other municipalities in the province, with an expected acceleration of about 0.084 g. In the Polcevera valley, damp in north-facing houses and a colder climate than on the coast, in climate zone D, matter more.
The real issue is water. The steep slopes slip during heavy rain and the valley's streams rise quickly, so the report checks the official landslide and flood maps for the address. The Revenue Agency (Agenzia delle Entrate) publishes the cadastral maps, and the plot is found from the address.
Key points
- Upper Polcevera valley, with the A7 and the Giovi railway.
- 3,538 residents in 2023, down 5.8% since 2011.
- Seismic zone 3, low expected acceleration, about 0.084 g.
- Steep slopes and streams: check landslides and floods.
Overview
Mignanego is a municipality in the province of Genova, in Liguria. At the end of 2023 it had 3,538 residents, ranked 22 of 67 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, Mignanego is in seismic zone 3, a zone where strong earthquakes are possible but rare. Most municipalities in the province (64 of 67) are in the same zone.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.084 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 5.8%. The estimated average age is 49 years, in line with the province. 28% of residents are over 65 (the regional figure is 29%). Foreign residents make up 5.3% of the population. On average, a household has 2.0 members.
Income and climate
In tax year 2024, taxpayers in Mignanego declared an average taxable income of 24,390 euros, below the provincial average (26,655 euros). The Italian average is 24,895 euros.
Mignanego is in climate zone D, with 1,962 heating degree days: heating may be switched on from 1 November to 15 April, for up to 12 hours a day. The same table puts the town hall at 170 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Mignanego has 3 schools and 1 pharmacy. The Overture Maps data also lists 1 grocery shop and 1 sports facility.
The data shows no healthcare facilities within the municipality, against a provincial average of 0.9 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 8.6% of the land in Mignanego, compared with 8.0% in the province and 7.3% in the region. In 2024 built-up land stayed almost the same.
Radon and contaminated sites
Mignanego is not among the radon priority areas designated by the Regione Liguria in 2026. Radon varies from building to building and can only be known by measuring it, especially on ground floors and in basements.
Official databases list one contaminated site, or site still under investigation, in Mignanego, and 2 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 Mignanego: 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 Mignanego 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 56 inhabited census areas in Mignanego. Half of the residents live in areas scoring 50 or more.
Residents by band
- modest 48.4%
- fair 51.6%
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.
- 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 Liguria, national list compiled by ARPA Lombardia. Licence Atto pubblico (art. 5 L. 633/1941), 2026.
- 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 010035. The text on this page is generated automatically from the data.