53.2k
Inhabitants
31.287 €
Average Income
13.79 µg/m³
PM2.5
12,3%
Land Consumption
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Population & demographics
All demographic data for Siena: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Siena.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Siena.
Population Trend
Male/Female Ratio
53.180Totale
Men
Women
Demographic Statistics
Men24.914
Women28.266
Year2026
Demographic Indices
+0.36%
Annual change
change from the previous year
279.4
Ageing index
65+ / 0-14 × 100
63
Dependency ratio
(0-14 + 65+) / 15-64 × 100
163.3
Workforce replacement
60-64 / 15-19 × 100
136.4
Workforce structure
40-64 / 15-39 × 100
15.3
Child dependency
0-4 / women 15-49 × 100
48.56
Average age
weighted average age
Births (recent years)
Historical Population (1951-present)
Marital Status (2026)
0Totale
Single
Married
Divorced
Widowed
School-Age Population (2026)
Total 0-18 years: 7405
Foreign residents
Foreign presence and top citizenships
Foreign residents
5524
Foreign-resident share: 10.42%
Main citizenships
Romania723
Albania433
Ucraina383
Pakistan366
Perù277
Source: ISTAT 2025, MEF 2023, ISPRA 2024, EEA 2022 · Year: 2025