Sinnai is a medium-sized municipality in the province of Cagliari, Sardegna region. With a population of 17.447 inhabitants and a density of 0 per km², it covers an area of 0.0 km². The average declared income is 20.457 €.

Population Trend

Male/Female Ratio

17.447Totale
Men
Women

Demographic Statistics

Men8750
Women8697
Year2026

Demographic Indices

+0.5%
Annual change
change from the previous year
211.7
Ageing index
65+ / 0-14 × 100
49.8
Dependency ratio
(0-14 + 65+) / 15-64 × 100
158.4
Workforce replacement
60-64 / 15-19 × 100
163.5
Workforce structure
40-64 / 15-39 × 100
12.2
Child dependency
0-4 / women 15-49 × 100
46.33
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: 2539

Foreign residents

Foreign presence and top citizenships

Main citizenships
Foreign residents
347
Foreign-resident share: 2%
Main citizenships
Pakistan61
Marocco26
Bangladesh21
Nepal20
Romania20
Source: ISTAT 2025, MEF 2023, ISPRA 2024, EEA 2022 · Year: 2025