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Population & demographics
All demographic data for Opera: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Opera.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Opera.
Opera is a medium-sized municipality in the province of Milano, Lombardia region. With a population of 14.463 inhabitants and a density of 1965 per km², it covers an area of 7.4 km². The average declared income is 31.666 €.
Opera in numbers: the analysis
Among the 133 municipalities of the province of Milano, Opera ranks 44 by population.
Opera has grown substantially since 1951: from 2,529 inhabitants then to 14,463 in 2026, an increase of 471.9%.
The generational balance is in line with the norm: the ageing index of Opera is 228 (over-65s per 100 under-14s).
Looking ahead to 2050, projections give Opera about 16,799 inhabitants, up 16.2% from today.
Compared with the provincial average of Milano (about 24,459 residents per municipality), Opera is a markedly smaller centre.
Few municipalities in Lombardia are larger: it ranks no. 120 by population out of 1502.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 13.845 |
| 2020 | 13.963 |
| 2021 | 14.100 |
| 2022 | 14.152 |
| 2023 | 14.295 |
| 2024 | 14.340 |
| 2025 | 14.396 |
| 2026 | 14.463 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 6927 | 47.9% |
| Women | 7536 | 52.1% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 105 |
| 2022 | 83 |
| 2023 | 93 |
| 2024 | 84 |
| 2025 | 102 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 2529 |
| 1961 | 3249 |
| 1971 | 5457 |
| 1981 | 11.485 |
| 1991 | 13.245 |
| 2001 | 13.373 |
| 2011 | 13.226 |
| 2019 | 13.845 |
| 2020 | 13.963 |
| 2021 | 14.100 |
| 2022 | 14.152 |
| 2023 | 14.295 |
| 2024 | 14.340 |
| 2025 | 14.396 |
| 2026 | 14.463 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 12.418 | 43.1% |
| Married | 12.950 | 45.0% |
| Divorced | 1342 | 4.7% |
| Widowed | 2082 | 7.2% |
School-Age Population (2026)
Total 0-18 years: 2287
| Valore | |
|---|---|
| Nido (0-2) | 279 |
| Infanzia (3-5) | 287 |
| Primaria (6-10) | 591 |
| Medie (11-13) | 422 |
| Superiori (14-18) | 708 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Opera population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/opera-015159" title="Population pyramid of Opera — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/opera-015159" alt="Population pyramid of Opera — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>