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Gromo: what to know before buying a home

A municipality in the province of Bergamo, Lombardia. Official data on earthquakes, population, services and transport.

Liveability index free for any address

Search for an address in Gromo

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 Spiazzi 1, Gromo.

Gromo, a medieval village in the upper Val Seriana

In the upper Val Seriana, where the valley narrows between steep mountains, Gromo keeps a medieval centre gathered around its square and castle. The village is at around 680 metres, and above it, at Spiazzi, there are ski runs that bring tourists and second-home owners in winter.

Buying in Gromo means choosing between three kinds of home: old stone houses in the village, with thick walls and often little outside space; more recent houses and blocks along the valley-floor road; and holiday flats higher up. For all of them the climate counts, zone F, with long, cold winters. Bergamo is at the bottom of the valley, a long drive, and for many services people go to Clusone.

The population is ageing. Istat, the national statistics office, counted 1,138 residents in 2023, 8.2% fewer than in 2011; the average age is 49.1, against 45.2 in the province, and 30.1% of residents are over 65, compared with 22.5% across the province of Bergamo. Foreign residents make up 2.5%. Declared incomes are below the provincial average.

Like all 243 municipalities in the province of Bergamo, Gromo is in seismic zone 3 on the Civil Protection Department scale, with expected ground acceleration in the village of 0.070 g. For the stone houses of the old centre, the roof, snow load and the state of timber floors matter most.

The Revenue Agency (Agenzia delle Entrate) publishes cadastral maps, so the report traces the plot from the address. Along the river Serio and on the slopes, floods, avalanches and landslides are checked on the official maps for the exact spot.

Key points

  • Medieval village in the upper Val Seriana, with its castle.
  • Ski runs at Spiazzi di Gromo.
  • Over-65s at 30.1%, against 22.5% in the province.
  • Seismic zone 3, like all 243 municipalities in the province.

Overview

Gromo is a municipality in the province of Bergamo, in Lombardia. At the end of 2023 it had 1,138 residents, ranked 177 of 243 municipalities in the province.

Earthquakes

For Italy's Civil Protection Department, Gromo is in seismic zone 3, a zone where strong earthquakes are possible but rare. All 243 municipalities in the province are in the same zone.

In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.070 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 8.2%. The estimated average age is 49 years, higher than the province average (45). 30% of residents are over 65 (the regional figure is 24%). Foreign residents make up 2.5% of the population. On average, a household has 2.1 members.

Income and climate

In tax year 2024, taxpayers in Gromo declared an average taxable income of 23,530 euros, below the provincial average (26,939 euros). The Italian average is 24,895 euros.

Gromo is in climate zone F, with 3,040 heating degree days, with no limits on when heating may be used. The same table puts the town hall at 676 metres above sea level.

Services

In the official Ministry of Education and Ministry of Health lists, Gromo has 3 schools and 1 pharmacy. The Overture Maps data also lists 2 healthcare facilities, 2 sports facilities and 1 green area.

The data shows no grocery shops and supermarkets within the municipality, against a provincial average of 0.5 per 1,000 residents.

Public transport

The open timetables available for the area do not list any stops within the territory of Gromo.

How built-up it is

Buildings, roads, car parks and other sealed surfaces cover 3.0% of the land in Gromo, compared with 12.0% in the province and 12.2% in the region. In 2024 built-up land stayed almost the same.

Radon and contaminated sites

Gromo is one of the municipalities designated as a radon priority area by the Regione Lombardia in 2023. 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 no contaminated sites in Gromo.

Landslides and flooding

Landslide and flood hazard changes from one street to the next even within Gromo: 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 Gromo 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 Gromo. Half of the residents live in areas scoring 61 or more.

Residents by band

  • fair 64.1%
  • good 35.9%

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 016118. The text on this page is generated automatically from the data.