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Population & demographics
All demographic data for Costa Masnaga: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Costa Masnaga.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Costa Masnaga.
Costa Masnaga is a small municipality in the province of Lecco, Lombardia region. With a population of 4738 inhabitants and a density of 798 per km², it covers an area of 5.9 km². The average declared income is 27.062 €.
Costa Masnaga in numbers: the analysis
Costa Masnaga has grown substantially since 1951: from 3,199 inhabitants then to 4,738 in 2026, an increase of 48.1%.
The generational balance is in line with the norm: the ageing index of Costa Masnaga is 179 (over-65s per 100 under-14s).
For 2050 the projections point to an essentially unchanged population: about 4,613 inhabitants.
Among the 84 municipalities of the province of Lecco, Costa Masnaga ranks 19 by population.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 4775 |
| 2020 | 4769 |
| 2021 | 4761 |
| 2022 | 4758 |
| 2023 | 4758 |
| 2024 | 4772 |
| 2025 | 4751 |
| 2026 | 4738 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 2390 | 50.4% |
| Women | 2348 | 49.6% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 31 |
| 2022 | 37 |
| 2023 | 33 |
| 2024 | 43 |
| 2025 | 19 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 3199 |
| 1961 | 3387 |
| 1971 | 3834 |
| 1981 | 4177 |
| 1991 | 4331 |
| 2001 | 4385 |
| 2011 | 4751 |
| 2019 | 4775 |
| 2020 | 4769 |
| 2021 | 4761 |
| 2022 | 4758 |
| 2023 | 4758 |
| 2024 | 4772 |
| 2025 | 4751 |
| 2026 | 4738 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 4192 | 44.1% |
| Married | 4372 | 46.0% |
| Divorced | 280 | 2.9% |
| Widowed | 658 | 6.9% |
School-Age Population (2026)
Total 0-18 years: 830
| Valore | |
|---|---|
| Nido (0-2) | 97 |
| Infanzia (3-5) | 103 |
| Primaria (6-10) | 220 |
| Medie (11-13) | 162 |
| Superiori (14-18) | 248 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Costa Masnaga population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/costa-masnaga-097026" title="Population pyramid of Costa Masnaga — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/costa-masnaga-097026" alt="Population pyramid of Costa Masnaga — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>