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Population & demographics
All demographic data for Volterra: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Volterra.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Volterra.
Volterra is a medium-sized municipality in the province of Pisa, Toscana region. With a population of 9362 inhabitants and a density of 37 per km², it covers an area of 252,9 km². The average declared income is 23.492 €.
Volterra in numbers: the analysis
Among the 37 municipalities of the province of Pisa, Volterra ranks 14 by population.
The census record tells a story of long decline: in 1951 Volterra had 17,840 inhabitants; today (2026) it has 9,362 — 47.5% fewer.
The ageing index is one of the starkest signals: in Volterra there are 390 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 7,049 inhabitants for Volterra: an expected decline of 24.7% 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: 1103
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Volterra population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/volterra-050039" title="Population pyramid of Volterra — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/volterra-050039" alt="Population pyramid of Volterra — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>