Mongiardino Ligure: what to know before buying a home
A municipality in the province of Alessandria, Piemonte. Official data on earthquakes, population, services and transport.
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Search for an address in Mongiardino Ligure
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: Frazione Salata 1, Mongiardino Ligure.
Mongiardino Ligure, Piedmont's Apennines on the way to Genoa
Despite the name, Mongiardino Ligure is in Piedmont, in the province of Alessandria. It lies in the Apennines around the Val Borbera, at about six hundred metres, and the name recalls the historic ties between these valleys and Genoa. The landscape is Apennine mountain country: dense woods, hamlets scattered across the slopes, and narrow, winding roads.
This is a place to choose with your eyes open. Basic services are some way off, and work is found in the valley towns or down on the plain, towards Novi Ligure and the rest of the Alessandria area. Several houses are used as second homes, often by families who originally came from the valley. For a buyer, what matters is winter access, the condition of stone or tiled roofs, damp and heating costs in climate zone E.
The population is elderly and shrinking: Istat, the national statistics office, counted 152 residents in 2023, 14.1% fewer than in 2011. Over-65s make up 43.4%, against 28.6% in the province, and the average age is 57.9. Households are very small, 1.46 people on average, and declared incomes are below the provincial average.
Mongiardino Ligure is in seismic zone 3 of the national classification, like 127 of the 187 municipalities in the province of Alessandria; the rest are in zone 4. Expected ground acceleration is about 0.096 g. For a stone house, check how any extensions or added storeys were built.
The Revenue Agency (Agenzia delle Entrate) publishes cadastral maps here. On Apennine slopes, landslide hazard must be checked for the exact address, and the report does this with the official maps.
Key points
- Piedmont municipality in the Apennines, around the Val Borbera.
- 152 residents in 2023, over-65s at 43.4%.
- Seismic zone 3, like 127 municipalities in the province.
- Mountain homes: check winter access, roofs and heating.
Overview
Mongiardino Ligure is a municipality in the province of Alessandria, in Piemonte. At the end of 2023 it had 152 residents, among the smallest in the province (179 of 187).
Earthquakes
For Italy's Civil Protection Department, Mongiardino Ligure is in seismic zone 3, a zone where strong earthquakes are possible but rare. Most municipalities in the province (127 of 187) are in the same zone.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.096 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 14.1%. The estimated average age is 58 years, higher than the province average (49). 43% of residents are over 65 (the regional figure is 27%). Foreign residents make up 2.0% of the population. On average, a household has 1.5 members.
Income and climate
In tax year 2024, taxpayers in Mongiardino Ligure declared an average taxable income of 19,480 euros, below the provincial average (25,143 euros). The Italian average is 24,895 euros.
Mongiardino Ligure is in climate zone E, with 2,986 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 600 metres above sea level.
Services
The data shows no schools within the municipality, against a provincial average of 1.0 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 1.3% of the land in Mongiardino Ligure, compared with 7.2% in the province and 6.7% in the region. In 2024 built-up land stayed almost the same.
Radon and contaminated sites
Mongiardino Ligure is not among the radon priority areas designated by the Regione Piemonte in 2023. According to the ISPRA map, the estimated radon emission in the municipality is low. 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 contaminated sites in Mongiardino Ligure.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Mongiardino Ligure: 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 Mongiardino Ligure 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 28 inhabited census areas in Mongiardino Ligure. Half of the residents live in areas scoring 56 or more.
Residents by band
- fair 100.0%
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.
- 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 Piemonte, national list compiled by ARPA Lombardia. Licence Atto pubblico (art. 5 L. 633/1941), 2023.
- Contaminated sites, Regione Piemonte, Anagrafe regionale dei siti contaminati (ASCO). Licence CC BY 4.0, updated to 9 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 006100. The text on this page is generated automatically from the data.