Calci: what to know before buying a home
A municipality in the province of Pisa, Toscana. Official data on earthquakes, population, services and transport.
Liveability index free for any address
Land sheet 6 free checks
Search for an address in Calci
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 Bruno Buozzi 1, Calci.
Calci, the Val Graziosa below Monte Pisano
Calci fills the Val Graziosa, the valley that opens on the Pisa side of Monte Pisano, about ten kilometres east of the city. Its best-known building is the Certosa, a large former Carthusian monastery that now also houses the University of Pisa's natural history museum. The village grew up along the Zambra stream, and its land rises from the valley floor to Monte Serra through terraced olive groves and woods.
For anyone working in Pisa, at the university or at Cisanello hospital, which sits right on the east side of the city, Calci is a convenient choice. On the valley floor, just above the Arno plain, there are village houses and detached homes; higher up you find scattered houses and smallholdings on narrow roads with hairpin bends. Declared incomes are above the average for the province of Pisa. There is no railway, so people travel by car or bus.
In 2023 Istat, the national statistics office, counted 6,312 residents, slightly down, by 1.5%, on 2011. The average age is 47.7 against 46.9 in the province, and over-65s make up 26.9%, against 25.3%. Foreign residents account for 4.8%. Overture Maps records 8 sports facilities, a little above the provincial average per head.
All 37 municipalities in the province of Pisa are in seismic zone 3, as classified by Italy's Civil Protection Department. In Calci the expected ground acceleration in the built-up area is about 0.120 g: a moderate hazard, though older stone houses still deserve a check of walls, floors and roof.
The main hazard here comes from the hillsides. Abandoned terraces and steep slopes can give way after heavy rain, the Zambra and its tributaries can overflow, and the woods on the mountain are exposed to summer fires. The report checks landslide and flood hazard for the address and, using the Revenue Agency (Agenzia delle Entrate) cadastral maps, identifies the plot.
Key points
- The Val Graziosa and its Certosa, about ten kilometres from Pisa.
- Incomes above the average for the province of Pisa.
- Seismic zone 3, expected acceleration about 0.120 g.
- Terraced slopes and the Zambra stream: landslides checked plot by plot.
Overview
Calci is a municipality in the province of Pisa, in Toscana. At the end of 2023 it had 6,312 residents, ranked 18 of 37 municipalities in the province.
Earthquakes
For Italy's Civil Protection Department, Calci is in seismic zone 3, a zone where strong earthquakes are possible but rare. All 37 municipalities in the province are in the same zone.
In the built-up area, the expected ground shaking (peak ground acceleration, PGA) is about 0.120 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 1.5%. The estimated average age is 48 years, in line with the province. 27% of residents are over 65 (the regional figure is 26%). Foreign residents make up 4.8% of the population. On average, a household has 2.2 members.
Income and climate
In tax year 2024, taxpayers in Calci declared an average taxable income of 27,961 euros, above the provincial average (25,727 euros). The Italian average is 24,895 euros.
Calci is in climate zone D, with 1,628 heating degree days: heating may be switched on from 1 November to 15 April, for up to 12 hours a day. The same table puts the town hall at 50 metres above sea level.
Services
In the official Ministry of Education and Ministry of Health lists, Calci has 4 schools and 2 pharmacies. The Overture Maps data also lists 4 grocery shops and supermarkets, 4 healthcare facilities, 8 sports facilities and 1 green area.
There are 0.6 healthcare facilities per 1,000 residents, fewer than the province average (1.0).
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 7.9% of the land in Calci, compared with 7.0% in the province and 6.2% in the region. In 2024 built-up land stayed almost the same.
Radon and contaminated sites
Calci is not among the radon priority areas designated by the Regione Toscana in 2025. 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 Calci; one has been cleaned up or closed.
Landslides and flooding
Landslide and flood hazard changes from one street to the next even within Calci: 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 Calci 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 33 inhabited census areas in Calci. Half of the residents live in areas scoring 64 or more.
Residents by band
- fair 56.2%
- good 43.8%
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 Toscana, national list compiled by ARPA Lombardia. Licence Atto pubblico (art. 5 L. 633/1941), 2025.
- 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 050003. The text on this page is generated automatically from the data.