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Population & demographics
All demographic data for Osnago: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Osnago.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Osnago.
Osnago is a small municipality in the province of Lecco, Lombardia region. With a population of 4831 inhabitants and a density of 1175 per km², it covers an area of 4.1 km². The average declared income is 29.225 €.
Osnago in numbers: the analysis
The generational balance is in line with the norm: the ageing index of Osnago is 218 (over-65s per 100 under-14s).
Looking ahead to 2050, projections give Osnago about 5,168 inhabitants, up 7% from today.
Among the 84 municipalities of the province of Lecco, Osnago ranks 18 by population.
Osnago has grown substantially since 1951: from 3,359 inhabitants then to 4,831 in 2026, an increase of 43.8%.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 4737 |
| 2020 | 4787 |
| 2021 | 4771 |
| 2022 | 4742 |
| 2023 | 4735 |
| 2024 | 4712 |
| 2025 | 4769 |
| 2026 | 4831 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 2337 | 48.4% |
| Women | 2494 | 51.6% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 23 |
| 2022 | 35 |
| 2023 | 25 |
| 2024 | 37 |
| 2025 | 33 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 3359 |
| 1961 | 3255 |
| 1971 | 3520 |
| 1981 | 3768 |
| 1991 | 3755 |
| 2001 | 4357 |
| 2011 | 4807 |
| 2019 | 4737 |
| 2020 | 4787 |
| 2021 | 4771 |
| 2022 | 4742 |
| 2023 | 4735 |
| 2024 | 4712 |
| 2025 | 4769 |
| 2026 | 4831 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 4126 | 43.3% |
| Married | 4350 | 45.6% |
| Divorced | 354 | 3.7% |
| Widowed | 708 | 7.4% |
School-Age Population (2026)
Total 0-18 years: 728
| Valore | |
|---|---|
| Nido (0-2) | 103 |
| Infanzia (3-5) | 102 |
| Primaria (6-10) | 187 |
| Medie (11-13) | 122 |
| Superiori (14-18) | 214 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Osnago population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/osnago-097061" title="Population pyramid of Osnago — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/osnago-097061" alt="Population pyramid of Osnago — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>