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Arco: what to know before buying a home

A municipality in the province of Trento, Trentino-Alto Adige/Südtirol. Official data on earthquakes, population, services and transport.

Liveability index free for any address

Search for an address in Arco

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 Santa Caterina 2, Arco.

Arco, the castle on the crag and the Sarca plain

A limestone crag topped by the ruins of a castle towers over Arco, a town in the lower Sarca valley a few minutes from the northern shore of Lake Garda. In the nineteenth and early twentieth centuries, when Trentino belonged to Austria, Arco was a health resort favoured by the imperial nobility, and its villas, old hotels and gardens of Mediterranean plants date from that time. Today the rock faces around the valley have made it one of Europe's centres for sport climbing.

The plain is planted with olives and vines, and the municipality includes several hamlets, some on the flat along the Sarca, others on the slopes. Climbing and lake tourism create demand for flats to let, but Arco remains more residential than neighbouring Riva. Buyers should weigh up the position in relation to the river, closeness to the rock faces and, on the hillsides, how much winter sun the house gets.

In 2023 there were 17,754 residents, 5.2% more than in 2011, an increase of 883. The estimated average age, 45.4, matches the province (45.4); over-65s make up 23.0% and foreign residents 8.5%. Declared incomes are just above the provincial average.

As everywhere in Trentino, property is recorded in the land book (libro fondiario), the tavolare system inherited from Austria and kept by the offices of the Autonomous Province. The Revenue Agency (Agenzia delle Entrate) does not publish cadastral maps for Arco: the report says so and cannot trace the plot from that source. Title checks go through the notary and the land book entries.

Arco is in seismic zone 3 of the Civil Protection Department's classification, like 147 of Trentino's 166 municipalities, with expected ground acceleration in the built-up area of about 0.114 g. In old stone houses, ask what structural work has been done. At the foot of the crags rockfall is the concern, and along the Sarca flooding, both checked for the address.

Key points

  • Castle on a crag, former Austrian health resort, a climbing capital.
  • Population up 5.2% since 2011.
  • Land book (tavolare) system: no Revenue Agency cadastral maps.
  • Seismic zone 3, expected acceleration about 0.114 g.

Overview

Arco is a municipality in the province of Trento, in Trentino-Alto Adige/Südtirol. At the end of 2023 it had 17,754 residents, among the most populous in the province (5 of 166).

Earthquakes

For Italy's Civil Protection Department, Arco is in seismic zone 3, a zone where strong earthquakes are possible but rare. Most municipalities in the province (147 of 166) are in the same zone.

In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.114 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 grown by 5.2%. The estimated average age is 45 years, in line with the province. 23% of residents are over 65 (the regional figure is 22%). Foreign residents make up 8.5% of the population. On average, a household has 2.3 members.

Income and climate

In tax year 2024, taxpayers in Arco declared an average taxable income of 26,120 euros, in line with the province (25,718 euros). The Italian average is 24,895 euros.

Arco is in climate zone E, with 2,380 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 91 metres above sea level.

Services

In the official Ministry of Education and Ministry of Health lists, Arco has 9 schools and 5 pharmacies. The Overture Maps data also lists 17 grocery shops and supermarkets, 11 healthcare facilities, 22 sports facilities and 11 parks and green areas.

There are 0.5 schools per 1,000 residents, fewer than the province average (0.7).

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 7.6% of the land in Arco, compared with 3.1% in the province and 2.9% in the region. In 2024 built-up land grew by 1.9 hectares.

Radon and contaminated sites

Arco is not among the radon priority areas designated by the Provincia autonoma di Trento in 2026. 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 2 contaminated sites, or sites still under investigation, in Arco, and 5 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 Arco: 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

For Arco the Revenue Agency does not publish cadastral maps: the land registry here uses the tavolare (land book) system. The report cannot give a parcel reference, but it still checks risks, services and transport at the address and states this clearly.

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 129 inhabited census areas in Arco. Half of the residents live in areas scoring 67 or more.

Residents by band

  • fair 44.5%
  • good 55.5%

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 022006. The text on this page is generated automatically from the data.