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ISTAT Code: 108023
45.6201°N, 9.2088°E
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Population & demographics
All demographic data for Desio: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Desio.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Desio.
Desio is a medium-sized municipality in the province of Monza e della Brianza, Lombardia region. With a population of 41.872 inhabitants and a density of 2845 per km², it covers an area of 14.7 km². The average declared income is 27.206 €.
Desio in numbers: the analysis
By population, Desio ranks no. 4 among the 55 municipalities of the province of Monza e della Brianza.
Desio has grown substantially since 1951: from 16,824 inhabitants then to 41,872 in 2026, an increase of 148.9%.
The generational balance is in line with the norm: the ageing index of Desio is 189 (over-65s per 100 under-14s).
For 2050 the projections point to an essentially unchanged population: about 42,485 inhabitants.
The average municipality in the province of Monza e della Brianza has about 16,062 residents: Desio has 2.6 times as many.
Desio is among Italy's major centres: the country's no. 188 municipality by population out of 7896.
Few municipalities in Lombardia are larger: it ranks no. 23 by population out of 1502.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 41.695 |
| 2020 | 41.748 |
| 2021 | 41.646 |
| 2022 | 41.668 |
| 2023 | 41.555 |
| 2024 | 41.570 |
| 2025 | 41.662 |
| 2026 | 41.872 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 20.683 | 49.4% |
| Women | 21.189 | 50.6% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 324 |
| 2022 | 284 |
| 2023 | 263 |
| 2024 | 288 |
| 2025 | 283 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 16.824 |
| 1961 | 23.750 |
| 1971 | 30.499 |
| 1981 | 33.282 |
| 1991 | 34.085 |
| 2001 | 35.069 |
| 2011 | 40.397 |
| 2019 | 41.695 |
| 2020 | 41.748 |
| 2021 | 41.646 |
| 2022 | 41.668 |
| 2023 | 41.555 |
| 2024 | 41.570 |
| 2025 | 41.662 |
| 2026 | 41.872 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 36.616 | 44.0% |
| Married | 37.784 | 45.4% |
| Divorced | 3338 | 4.0% |
| Widowed | 5496 | 6.6% |
School-Age Population (2026)
Total 0-18 years: 6901
| Valore | |
|---|---|
| Nido (0-2) | 839 |
| Infanzia (3-5) | 950 |
| Primaria (6-10) | 1820 |
| Medie (11-13) | 1219 |
| Superiori (14-18) | 2073 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Desio population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/desio-108023" title="Population pyramid of Desio — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/desio-108023" alt="Population pyramid of Desio — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>Municipalities near Desio
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