Ariano Irpino: what to know before buying a home
A municipality in the province of Avellino, Campania. Official data on earthquakes, population, services and transport.
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Search for an address in Ariano Irpino
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: Contrada Torana 1, Ariano Irpino.
Ariano Irpino, high in Irpinia on the old road to Puglia
Ariano Irpino is one of the highest towns in Campania: the town hall stands at around seven hundred and eighty metres, on a height in eastern Irpinia crossed by the old Puglia road that runs from Naples towards Foggia. The municipal area is very large, with dozens of scattered hamlets among wheat fields and pasture. By population it ranks 2 among the 118 municipalities of the province of Avellino.
Here earthquakes come first. Ariano is in seismic zone 1, the most hazardous class in the Civil Protection map, along with 57 other municipalities in Irpinia, and expected ground acceleration in the built-up area is about 0.249 g, a high value. Before buying, ask when the building went up, whether it was repaired or rebuilt after the 1980 earthquake under a structural design, and whether any strengthening was carried out using the government tax incentives.
The market falls into three parts. The old town at the top has old houses on steep lanes; the districts that grew after 1980 along the access roads offer newer blocks and flats; the hamlets have detached houses and small farms. Winters are long and cold and snow is not unusual, so insulation, the boiler and heating bills weigh on the budget as much as the purchase price.
Istat, the national statistics office, counts 20,889 residents in 2023, down 7.2% since 2011, or 1,628 fewer people, as in many inland towns. Over-65s make up 25.5%, against 20.9% for Campania, and foreign nationals 1.9%. There are 15 healthcare sites on record, more per resident than the provincial average, since Ariano has a hospital serving a wide area.
On the clay slopes landslides are a real issue, and the report checks gradient and the official hazard maps for the address. The land registry maps of the Revenue Agency (Agenzia delle Entrate) are published.
Key points
- Hill town in eastern Irpinia, with dozens of rural hamlets.
- Seismic zone 1, expected ground acceleration about 0.249 g.
- 20,889 residents, down 7.2% since 2011.
- Cold winters: insulation and heating add to running costs.
Overview
Ariano Irpino is a municipality in the province of Avellino, in Campania. At the end of 2023 it had 20,889 residents, the second most populous in the province.
Earthquakes
For Italy's Civil Protection Department, Ariano Irpino is in seismic zone 1, the highest-risk zone, where very strong earthquakes are possible. Only 58 of 118 municipalities in the province are in zone 1.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.249 g, a medium-high value: the level with a 10% probability of being exceeded in 50 years, on rock.
For anyone buying in Ariano Irpino, 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 7.2%. The estimated average age is 47 years, in line with the province. 26% of residents are over 65 (the regional figure is 21%). Foreign residents make up 1.9% of the population. On average, a household has 2.4 members.
Income and climate
In tax year 2024, taxpayers in Ariano Irpino declared an average taxable income of 19,248 euros, in line with the province (19,951 euros). The Italian average is 24,895 euros.
Ariano Irpino is in climate zone E, with 2,410 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 778 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Ariano Irpino has 27 schools and 7 pharmacies. The Overture Maps data also lists 12 grocery shops and supermarkets, 15 healthcare facilities, 10 sports facilities and 3 parks and green areas.
There are 0.7 healthcare facilities per 1,000 residents, more than the province average (0.5).
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 7.2% of the land in Ariano Irpino, compared with 7.4% in the province and 10.6% in the region. In 2024 built-up land grew by 22.7 hectares.
Radon and contaminated sites
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 2 contaminated sites, or sites still under investigation, in Ariano Irpino, and 2 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 Ariano Irpino: 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 Ariano Irpino 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 339 inhabited census areas in Ariano Irpino. Half of the residents live in areas scoring 60 or more.
Residents by band
- modest 10.8%
- fair 89.2%
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.
- 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 064005. The text on this page is generated automatically from the data.