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Population & demographics
All demographic data for Castelnuovo Belbo: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Castelnuovo Belbo.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Castelnuovo Belbo.
Castelnuovo Belbo is a small municipality in the province of Asti, Piemonte region. With a population of 815 inhabitants and a density of 85 per km², it covers an area of 9,6 km². The average declared income is 20.984 €.
Castelnuovo Belbo in numbers: the analysis
Compared with the provincial average of Asti (about 1,770 residents per municipality), Castelnuovo Belbo is a markedly smaller centre.
Among the 117 municipalities of the province of Asti, Castelnuovo Belbo ranks 47 by population.
The census record tells a story of long decline: in 1951 Castelnuovo Belbo had 1,563 inhabitants; today (2026) it has 815 — 47.9% fewer.
The ageing index is one of the starkest signals: in Castelnuovo Belbo there are 289 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 723 inhabitants for Castelnuovo Belbo: an expected decline of 11.3% from today.
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: 119
Foreign residents
Foreign presence and top citizenships
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Use the Castelnuovo Belbo population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/castelnuovo-belbo-005029" title="Population pyramid of Castelnuovo Belbo — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/castelnuovo-belbo-005029" alt="Population pyramid of Castelnuovo Belbo — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>