Tonco: what to know before buying a home
A municipality in the province of Asti, Piemonte. Official data on earthquakes, population, services and transport.
Liveability index free for any address
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Search for an address in Tonco
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 Giuseppe Garibaldi 1, Tonco.
Tonco, a hill village in the Monferrato north of Asti
The hills of the Monferrato north of Asti are Tonco's setting: a hilltop village, with houses gathered around the old centre and farmland running down into the valleys on every side. Asti is the reference point for work, hospital care and secondary schools, and is reached by car.
The population has fallen sharply: there were 735 residents in 2023, 164 fewer than in 2011, a drop of 18.2% (Istat, the national statistics office). The average age is 50.2, above the 47.9 of the province of Asti, and over-65s are 31.0% against 27.3%. Foreign residents make up 10.1%. Average declared income is slightly above the provincial figure.
On the market you find village houses, farmsteads with land and villas in the hills, often brick-built and in need of renovation. The landscape cuts both ways for buyers: views and quiet on one side, and on the other steep roads, sloping plots and retaining walls that need checking. In old brick houses, damp in the ground-floor walls is a common defect. This is climate zone E, with cold winters.
Earthquakes are a minor factor. Tonco is in seismic zone 4, like 113 of the 117 municipalities in the province, with an expected ground acceleration of about 0.039 g. Budget instead for the roof, insulation and services.
The Revenue Agency (Agenzia delle Entrate) publishes Tonco's cadastral maps, so the report traces the address to its land parcel and shows the official landslide maps for the slope.
Key points
- Monferrato hill village north of Asti.
- 735 residents, down 18.2% since 2011.
- Over-65s at 31.0%, against 27.3% in the province.
- Seismic zone 4, expected acceleration about 0.039 g.
Overview
Tonco is a municipality in the province of Asti, in Piemonte. At the end of 2023 it had 735 residents, ranked 51 of 117 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, Tonco is in seismic zone 4, the lowest-risk zone, where strong earthquakes are very rare. Most municipalities in the province (113 of 117) 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 resident population has fallen by 18.2%. The estimated average age is 50 years, higher than the province average (48). 31% of residents are over 65 (the regional figure is 27%). Foreign residents make up 10.1% of the population. On average, a household has 2.1 members.
Income and climate
In tax year 2024, taxpayers in Tonco declared an average taxable income of 24,832 euros, in line with the province (24,302 euros). The Italian average is 24,895 euros.
Tonco is in climate zone E, with 2,710 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 271 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Tonco has 2 schools and 1 pharmacy. The Overture Maps data also lists 1 sports facility.
The data shows no grocery shops and supermarkets within the municipality, against a provincial average of 0.6 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 5.0% of the land in Tonco, compared with 7.3% in the province and 6.7% in the region. In 2024 built-up land stayed almost the same.
Radon and contaminated sites
Tonco 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 Tonco.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Tonco: 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 Tonco 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 10 inhabited census areas in Tonco. Half of the residents live in areas scoring 64 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 005109. The text on this page is generated automatically from the data.