Voltaggio is a small municipality in the province of Alessandria, Piemonte region. With a population of 649 inhabitants and a density of 0 per km², it covers an area of 0.0 km². The average declared income is 25.611 €.

Population Trend

Male/Female Ratio

649Totale
Men
Women

Demographic Statistics

Men311
Women338
Year2026

Demographic Indices

-1.37%
Annual change
change from the previous year
410.7
Ageing index
65+ / 0-14 × 100
78.8
Dependency ratio
(0-14 + 65+) / 15-64 × 100
200
Workforce replacement
60-64 / 15-19 × 100
215.7
Workforce structure
40-64 / 15-39 × 100
13.7
Child dependency
0-4 / women 15-49 × 100
53
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: 75

Foreign residents

Foreign presence and top citizenships

Main citizenships
Foreign residents
36
Foreign-resident share: 5.47%
Main citizenships
Romania10
Tunisia4
Ecuador3
Marocco3
Sri Lanka3
Source: ISTAT 2025, MEF 2023, ISPRA 2024, EEA 2022 · Year: 2025