Mariano del Friuli: what to know before buying a home
A municipality in the province of Gorizia, Friuli-Venezia Giulia. Official data on earthquakes, population, services and transport.
Liveability index free for any address
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Search for an address in Mariano del Friuli
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 Alessandro Manzoni 1, Mariano del Friuli.
Mariano del Friuli, Isonzo plain vineyards near the border
Mariano del Friuli is a lowland municipality in the province of Gorizia, in the wine country between Cormons and the river Isonzo. The land is flat, with the village and fields of vines and maize. Gorizia, Udine and Monfalcone are the towns people look to for work and services.
Housing is mainly village houses built around a courtyard, some renovated, and newer detached houses on the edges. On flat land the practical concerns are damp and cellars; in older houses also roofs and floors. Climate zone E brings cold winters, and the bora wind sometimes reaches this far.
Istat, the national statistics office, counts 1,447 residents in 2023, down 9.6% since 2011. The population is older than the provincial average: an average age of 50.4 against 48.0, with over-65s at 31.2%. Foreign residents make up 4.6%.
The province of Gorizia has 15 municipalities in seismic zone 3: Mariano is one of them, with an expected ground acceleration of 0.175 g. Friuli has a well-known earthquake history, so for a masonry building it is worth knowing whether it was strengthened after the 1970s.
This area uses the tavolare system, a land register inherited from Austria: ownership is recorded in the tavolare register, but the Revenue Agency (Agenzia delle Entrate) still publishes the cadastral maps, so the report reaches the land parcel. For the address it also checks the official flood maps.
Key points
- Isonzo plain, in the vineyards near Cormons.
- Over-65s at 31.2%, above the province.
- Seismic zone 3, expected acceleration 0.175 g.
- Tavolare register, but Revenue Agency maps available.
Overview
Mariano del Friuli is a municipality in the province of Gorizia, in Friuli-Venezia Giulia. At the end of 2023 it had 1,447 residents, ranked 20 of 25 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, Mariano del Friuli is in seismic zone 3, a zone where strong earthquakes are possible but rare. Most municipalities in the province (15 of 25) are in the same zone.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.175 g, a medium-high 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 9.6%. 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 4.6% of the population. On average, a household has 2.1 members.
Income and climate
In tax year 2024, taxpayers in Mariano del Friuli declared an average taxable income of 24,227 euros, in line with the province (24,418 euros). The Italian average is 24,895 euros.
Mariano del Friuli is in climate zone E, with 2,258 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 32 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Mariano del Friuli has 3 schools and 1 pharmacy. The Overture Maps data also lists 1 grocery shop and 1 sports facility.
The data shows no healthcare facilities within the municipality, against a provincial average of 0.7 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 13.8% of the land in Mariano del Friuli, compared with 13.0% in the province and 8.1% in the region. In 2024 built-up land grew by 4.2 hectares.
Radon and contaminated sites
Mariano del Friuli is not among the radon priority areas designated by the Regione Friuli Venezia Giulia in 2024. 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 open contaminated sites in Mariano del Friuli; one has been cleaned up or closed.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Mariano del Friuli: 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
Mariano del Friuli uses the tavolare (land book) system, but the Revenue Agency still publishes the maps: the report finds the building's parcel, that is its sheet and parcel number, starting from the address.
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 8 inhabited census areas in Mariano del Friuli. Half of the residents live in areas scoring 71 or more.
Residents by band
- fair 19.2%
- good 80.8%
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 031010. The text on this page is generated automatically from the data.