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Population & demographics
All demographic data for Oleggio Castello: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Oleggio Castello.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Oleggio Castello.
Oleggio Castello is a small municipality in the province of Novara, Piemonte region. With a population of 2225 inhabitants and a density of 408 per km², it covers an area of 5.5 km². The average declared income is 30.345 €.
Oleggio Castello in numbers: the analysis
Among the 87 municipalities of the province of Novara, Oleggio Castello ranks 30 by population.
Oleggio Castello has grown substantially since 1951: from 1,084 inhabitants then to 2,225 in 2026, an increase of 105.3%.
The generational balance is in line with the norm: the ageing index of Oleggio Castello is 226 (over-65s per 100 under-14s).
Looking ahead to 2050, projections give Oleggio Castello about 2,432 inhabitants, up 9.3% from today.
Compared with the provincial average of Novara (about 4,206 residents per municipality), Oleggio Castello is a markedly smaller centre.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 2168 |
| 2020 | 2166 |
| 2021 | 2149 |
| 2022 | 2203 |
| 2023 | 2224 |
| 2024 | 2208 |
| 2025 | 2223 |
| 2026 | 2225 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 1124 | 50.5% |
| Women | 1101 | 49.5% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 13 |
| 2022 | 11 |
| 2023 | 10 |
| 2024 | 7 |
| 2025 | 16 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 1084 |
| 1961 | 1183 |
| 1971 | 1223 |
| 1981 | 1355 |
| 1991 | 1398 |
| 2001 | 1729 |
| 2011 | 1968 |
| 2019 | 2168 |
| 2020 | 2166 |
| 2021 | 2149 |
| 2022 | 2203 |
| 2023 | 2224 |
| 2024 | 2208 |
| 2025 | 2223 |
| 2026 | 2225 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 1888 | 42.5% |
| Married | 2054 | 46.2% |
| Divorced | 222 | 5.0% |
| Widowed | 282 | 6.3% |
School-Age Population (2026)
Total 0-18 years: 346
| Valore | |
|---|---|
| Nido (0-2) | 32 |
| Infanzia (3-5) | 45 |
| Primaria (6-10) | 97 |
| Medie (11-13) | 68 |
| Superiori (14-18) | 104 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Oleggio Castello population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/oleggio-castello-003109" title="Population pyramid of Oleggio Castello — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/oleggio-castello-003109" alt="Population pyramid of Oleggio Castello — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>