Castiglione Olona is a medium-sized municipality in the province of Varese, Lombardia region. With a population of 7454 inhabitants and a density of 0 per km², it covers an area of 0.0 km². The average declared income is 25.469 €.

Population Trend

Male/Female Ratio

7454Totale
Men
Women

Demographic Statistics

Men3715
Women3739
Year2026

Demographic Indices

-0.12%
Annual change
change from the previous year
228.2
Ageing index
65+ / 0-14 × 100
61.4
Dependency ratio
(0-14 + 65+) / 15-64 × 100
154.1
Workforce replacement
60-64 / 15-19 × 100
146.7
Workforce structure
40-64 / 15-39 × 100
18
Child dependency
0-4 / women 15-49 × 100
47.44
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: 1155

Foreign residents

Foreign presence and top citizenships

Main citizenships
Foreign residents
375
Foreign-resident share: 5.02%
Main citizenships
Albania117
Ucraina51
Romania44
Marocco23
Cina22
Source: ISTAT 2025, MEF 2023, ISPRA 2024, EEA 2022 · Year: 2025