Grimacco: what to know before buying a home
A municipality in the province of Udine, Friuli-Venezia Giulia. Official data on earthquakes, population, services and transport.
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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 Topolo` 1, Grimacco.
Grimacco, in the Natisone valleys near Slovenia
Grimacco is one of the municipalities of the Natisone valleys, an area of hills and narrow valleys east of Cividale del Friuli, right against the border with Slovenia. The territory is made up of small hamlets scattered over wooded slopes, and for centuries it has been home to a Slovene-speaking community with its own dialect and traditions, protected by law as a linguistic minority. Cividale is the town for services and schools, Udine the city for work and hospital.
In 2023 Istat, the national statistics office, counted 297 residents, 77 fewer than in 2011, a fall of 20.6%. The estimated average age is 55.6, against 48.5 for the province of Udine, and over-65s make up 41.8%, against 27.8%. Households average 1.78 people. Foreign residents account for 2.7%. Declared incomes are well below the provincial average.
Earthquake risk is a real issue in this part of Friuli. Grimacco is in seismic zone 2 under the Civil Protection classification, like 71 of the 134 municipalities in the province, and expected ground acceleration in the built-up area is about 0.244 g, a high value. With a stone house in one of the hamlets, ask whether the building was rebuilt or strengthened after the 1976 Friuli earthquake, to which design and with what paperwork.
Buying here means choosing among small hamlets and hillside roads, with sun and access varying greatly from one cluster of houses to the next. Winters are cold, in climate zone E, and a car is needed for everything.
On steep slopes, landslides have to be assessed plot by plot: the report for the address reads the official maps and, using the Revenue Agency's cadastral maps, traces the land parcel.
Key points
- Natisone valleys, east of Cividale towards Slovenia.
- Seismic zone 2, high expected acceleration (0.244 g).
- 297 residents, down 20.6% since 2011.
- Over-65s at 41.8%, against 27.8% in the province.
Overview
Grimacco is a municipality in the province of Udine, in Friuli-Venezia Giulia. At the end of 2023 it had 297 residents, among the smallest in the province (129 of 134).
Earthquakes
For Italy's Civil Protection Department, Grimacco is in seismic zone 2, a zone where strong earthquakes are possible. Most municipalities in the province (71 of 134) are in the same zone.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.244 g, a medium-high value: the level with a 10% probability of being exceeded in 50 years, on rock.
For anyone buying in Grimacco, the building matters a great deal: ask for the design year, whether it met the 2008 seismic standards, and whether any seismic retrofit has been carried out.
Population
Compared with the 2011 census, the resident population has fallen by 20.6%. The estimated average age is 56 years, higher than the province average (49). 42% of residents are over 65 (the regional figure is 27%). Foreign residents make up 2.7% of the population. On average, a household has 1.8 members.
Income and climate
In tax year 2024, taxpayers in Grimacco declared an average taxable income of 18,584 euros, below the provincial average (25,508 euros). The Italian average is 24,895 euros.
Grimacco is in climate zone E, with 2,788 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 253 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Grimacco has 1 pharmacy. The Overture Maps data also lists 1 green area.
The data shows no schools within the municipality, against a provincial average of 1.1 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 3.0% of the land in Grimacco, compared with 6.8% in the province and 8.1% in the region. In 2024 built-up land stayed almost the same.
Radon and contaminated sites
Grimacco is not among the radon priority areas designated by the Regione Friuli Venezia Giulia in 2024. 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 Grimacco.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Grimacco: 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 Grimacco 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 19 inhabited census areas in Grimacco. Half of the residents live in areas scoring 62 or more.
Residents by band
- fair 84.3%
- good 15.7%
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 Friuli Venezia Giulia, national list compiled by ARPA Lombardia. Licence Atto pubblico (art. 5 L. 633/1941), 2024.
- 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 030045. The text on this page is generated automatically from the data.