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Population & demographics
All demographic data for Castiglione Olona: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Castiglione Olona.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Castiglione Olona.
Castiglione Olona is a medium-sized municipality in the province of Varese, Lombardia region. With a population of 7454 inhabitants and a density of 1143 per km², it covers an area of 6.5 km². The average declared income is 25.469 €.
Castiglione Olona in numbers: the analysis
Among the 136 municipalities of the province of Varese, Castiglione Olona ranks 32 by population.
Castiglione Olona has grown substantially since 1951: from 3,640 inhabitants then to 7,454 in 2026, an increase of 104.8%.
The generational balance is in line with the norm: the ageing index of Castiglione Olona is 228 (over-65s per 100 under-14s).
Demographic projections to 2050 estimate about 6,884 inhabitants for Castiglione Olona: an expected decline of 7.6% from today.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 7629 |
| 2020 | 7641 |
| 2021 | 7635 |
| 2022 | 7582 |
| 2023 | 7533 |
| 2024 | 7463 |
| 2025 | 7463 |
| 2026 | 7454 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 3715 | 49.8% |
| Women | 3739 | 50.2% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 44 |
| 2022 | 51 |
| 2023 | 41 |
| 2024 | 45 |
| 2025 | 54 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 3640 |
| 1961 | 4815 |
| 1971 | 6201 |
| 1981 | 7171 |
| 1991 | 7434 |
| 2001 | 7696 |
| 2011 | 7836 |
| 2019 | 7629 |
| 2020 | 7641 |
| 2021 | 7635 |
| 2022 | 7582 |
| 2023 | 7533 |
| 2024 | 7463 |
| 2025 | 7463 |
| 2026 | 7454 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 6312 | 42.3% |
| Married | 6792 | 45.5% |
| Divorced | 716 | 4.8% |
| Widowed | 1106 | 7.4% |
School-Age Population (2026)
Total 0-18 years: 1155
| Valore | |
|---|---|
| Nido (0-2) | 135 |
| Infanzia (3-5) | 151 |
| Primaria (6-10) | 307 |
| Medie (11-13) | 205 |
| Superiori (14-18) | 357 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Castiglione Olona population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/castiglione-olona-012046" title="Population pyramid of Castiglione Olona — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/castiglione-olona-012046" alt="Population pyramid of Castiglione Olona — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>