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Population & demographics
All demographic data for Sandigliano: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Sandigliano.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Sandigliano.
Sandigliano is a small municipality in the province of Biella, Piemonte region. With a population of 2563 inhabitants and a density of 251 per km², it covers an area of 10,2 km². The average declared income is 25.609 €.
Sandigliano in numbers: the analysis
Demographic projections to 2050 estimate about 2,257 inhabitants for Sandigliano: an expected decline of 11.9% from today.
The ageing index is one of the starkest signals: in Sandigliano there are 337 residents over 65 for every 100 under 14, well above the national average.
Sandigliano has grown substantially since 1951: from 1,728 inhabitants then to 2,563 in 2026, an increase of 48.3%.
Among the 74 municipalities of the province of Biella, Sandigliano ranks 14 by population.
Population Trend
Male/Female Ratio
Demographic Statistics
Demographic Indices
Births (recent years)
Historical Population (1951-present)
Marital Status (2025)
School-Age Population (2026)
Total 0-18 years: 309
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Sandigliano population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/sandigliano-096059" title="Population pyramid of Sandigliano — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/sandigliano-096059" alt="Population pyramid of Sandigliano — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>