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Population & demographics
All demographic data for Castelnuovo Berardenga: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Castelnuovo Berardenga.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Castelnuovo Berardenga.
Castelnuovo Berardenga is a medium-sized municipality in the province of Siena, Toscana region. With a population of 8764 inhabitants and a density of 49 per km², it covers an area of 177,1 km². The average declared income is 29.220 €.
Castelnuovo Berardenga in numbers: the analysis
Among the 35 municipalities of the province of Siena, Castelnuovo Berardenga ranks 9 by population.
The census record tells a story of long decline: in 1951 Castelnuovo Berardenga had 9,937 inhabitants; today (2026) it has 8,764 — 11.8% fewer.
The generational balance is in line with the norm: the ageing index of Castelnuovo Berardenga is 218 (over-65s per 100 under-14s).
Demographic projections to 2050 estimate about 8,231 inhabitants for Castelnuovo Berardenga: an expected decline of 6.1% 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: 1354
Foreign residents
Foreign presence and top citizenships
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Use the Castelnuovo Berardenga population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/castelnuovo-berardenga-052006" title="Population pyramid of Castelnuovo Berardenga — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/castelnuovo-berardenga-052006" alt="Population pyramid of Castelnuovo Berardenga — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>