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Population & demographics
All demographic data for Melzo: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Melzo.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Melzo.
Melzo is a medium-sized municipality in the province of Milano, Lombardia region. With a population of 18.540 inhabitants and a density of 1856 per km², it covers an area of 10.0 km². The average declared income is 27.582 €.
Melzo in numbers: the analysis
Among the 133 municipalities of the province of Milano, Melzo ranks 36 by population.
Melzo has grown substantially since 1951: from 8,719 inhabitants then to 18,540 in 2026, an increase of 112.6%.
The generational balance is in line with the norm: the ageing index of Melzo is 219 (over-65s per 100 under-14s).
For 2050 the projections point to an essentially unchanged population: about 19,260 inhabitants.
Few municipalities in Lombardia are larger: it ranks no. 84 by population out of 1502.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 18.335 |
| 2020 | 18.345 |
| 2021 | 18.566 |
| 2022 | 18.503 |
| 2023 | 18.370 |
| 2024 | 18.386 |
| 2025 | 18.330 |
| 2026 | 18.540 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 9027 | 48.7% |
| Women | 9513 | 51.3% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 125 |
| 2022 | 114 |
| 2023 | 122 |
| 2024 | 122 |
| 2025 | 112 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 8719 |
| 1961 | 12.797 |
| 1971 | 17.092 |
| 1981 | 17.996 |
| 1991 | 18.430 |
| 2001 | 18.546 |
| 2011 | 18.203 |
| 2019 | 18.335 |
| 2020 | 18.345 |
| 2021 | 18.566 |
| 2022 | 18.503 |
| 2023 | 18.370 |
| 2024 | 18.386 |
| 2025 | 18.330 |
| 2026 | 18.540 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 16.040 | 43.8% |
| Married | 16.120 | 44.0% |
| Divorced | 1544 | 4.2% |
| Widowed | 2956 | 8.1% |
School-Age Population (2026)
Total 0-18 years: 2906
| Valore | |
|---|---|
| Nido (0-2) | 366 |
| Infanzia (3-5) | 388 |
| Primaria (6-10) | 792 |
| Medie (11-13) | 489 |
| Superiori (14-18) | 871 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Melzo population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/melzo-015142" title="Population pyramid of Melzo — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/melzo-015142" alt="Population pyramid of Melzo — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>