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Delia: what to know before buying a home

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

Liveability index free for any address

Search for an address in Delia

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: Corso Umberto I 1, Delia.

Delia, farming hills in inland Caltanissetta

Delia lies in inland Sicily, in the south-western part of the province of Caltanissetta, towards the border with the province of Agrigento and the town of Canicattì. It is surrounded by hills planted with wheat, vines, almonds and olives, and lives mainly on farming. It is also known for cuddrireddra, a traditional fried pastry shaped like a ring.

For buyers, the market is that of an inland town: masonry houses of two or three floors in the centre, often family-owned and in need of updating, a few more recent blocks and scattered country houses. Average declared incomes are well below the provincial average. The climate is hot (climate zone C): in summer, roof insulation, shading and ventilation matter more than heating.

In 2023 there were 3,871 residents, down 10.5% from 4,325 in 2011, or 454 fewer people. The average age of 45.1 is the same as the province (45.2); over-65s make up 22.4%. Foreign residents account for 12.2%.

Seismic hazard is moderate. Delia is in zone 3, like 18 municipalities in the province, while 4 are in zone 2; the expected ground acceleration in the built-up area is about 0.063 g, a low value. For an old house, what matters most is the condition of the floors, roof and systems.

The hills of inland Caltanissetta are largely clay, and landslides on the slopes are possible. The report checks gradient and the official landslide and flood maps for the address and, using the Revenue Agency (Agenzia delle Entrate) cadastral maps, traces the plot.

Key points

  • Farming town in inland Caltanissetta, towards Canicattì.
  • 3,871 residents, down 10.5% since 2011.
  • Seismic zone 3, low expected acceleration of about 0.063 g.
  • Incomes well below the provincial average.

Overview

Delia is a municipality in the province of Caltanissetta, in Sicilia. At the end of 2023 it had 3,871 residents, ranked 12 of 22 municipalities in the province.

Earthquakes

For Italy's Civil Protection Department, Delia is in seismic zone 3, a zone where strong earthquakes are possible but rare. Most municipalities in the province (18 of 22) are in the same zone.

In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.063 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 10.5%. The estimated average age is 45 years, in line with the province. 22% of residents are over 65 (the regional figure is 23%). Foreign residents make up 12.2% of the population. On average, a household has 2.3 members.

Income and climate

In tax year 2024, taxpayers in Delia declared an average taxable income of 14,081 euros, below the provincial average (19,090 euros). The Italian average is 24,895 euros.

Delia is in climate zone C, with 1,298 heating degree days: heating may be switched on from 15 November to 31 March, for up to 10 hours a day. The same table puts the town hall at 420 metres above sea level.

Services

In the official Ministry of Education and Ministry of Health lists, Delia has 4 schools and 2 pharmacies. The Overture Maps data also lists 3 grocery shops and supermarkets, 1 healthcare facility and 1 green area.

There are 0.3 healthcare facilities per 1,000 residents, fewer than the province average (0.6).

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 8.6% of the land in Delia, compared with 4.8% in the province and 6.6% in the region. In 2024 built-up land stayed almost the same.

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 no open contaminated sites in Delia; one has been cleaned up or closed.

Landslides and flooding

Landslide and flood hazard changes from one street to the next even within Delia: 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 Delia 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 23 inhabited census areas in Delia. Half of the residents live in areas scoring 80 or more.

Residents by band

  • fair 1.1%
  • good 43.0%
  • very good 55.9%

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 085006. The text on this page is generated automatically from the data.