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Population & demographics
All demographic data for Buonconvento: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Buonconvento.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Buonconvento.
Buonconvento is a small municipality in the province of Siena, Toscana region. With a population of 2936 inhabitants and a density of 45 per km², it covers an area of 64,8 km². The average declared income is 24.384 €.
Buonconvento in numbers: the analysis
The census record tells a story of long decline: in 1951 Buonconvento had 4,444 inhabitants; today (2026) it has 2,936 — 33.9% fewer.
Among the 35 municipalities of the province of Siena, Buonconvento ranks 21 by population.
Compared with the provincial average of Siena (about 7,414 residents per municipality), Buonconvento is a markedly smaller centre.
Demographic projections to 2050 estimate about 2,392 inhabitants for Buonconvento: an expected decline of 18.5% from today.
The generational balance is in line with the norm: the ageing index of Buonconvento is 236 (over-65s per 100 under-14s).
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: 467
Foreign residents
Foreign presence and top citizenships
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Use the Buonconvento population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/buonconvento-052003" title="Population pyramid of Buonconvento — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/buonconvento-052003" alt="Population pyramid of Buonconvento — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>