735
Inhabitants
18.917 €
Average Income
13.79 µg/m³
PM2.5
2,4%
Land Consumption
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Population & demographics
All demographic data for Siamanna: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Siamanna.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Siamanna.
Population Trend
Male/Female Ratio
735Totale
Men
Women
Demographic Statistics
Men370
Women365
Year2026
Demographic Indices
-2.13%
Annual change
change from the previous year
511.5
Ageing index
65+ / 0-14 × 100
76.3
Dependency ratio
(0-14 + 65+) / 15-64 × 100
157.9
Workforce replacement
60-64 / 15-19 × 100
154.3
Workforce structure
40-64 / 15-39 × 100
11.6
Child dependency
0-4 / women 15-49 × 100
52.4
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: 86
Foreign residents
Foreign presence and top citizenships
Foreign residents
11
Foreign-resident share: 1.46%
Main citizenships
Romania5
Brasile3
Dominica1
Federazione russa1
Senegal1
Municipalities in the same province
Source: ISTAT 2025, MEF 2023, ISPRA 2024, EEA 2022 · Year: 2025