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Population & demographics
All demographic data for Zelbio: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Zelbio.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Zelbio.
Zelbio is a small municipality in the province of Como, Lombardia region. With a population of 182 inhabitants and a density of 38 per km², it covers an area of 4.8 km². The average declared income is 26.340 €.
Zelbio in numbers: the analysis
The census record tells a story of long decline: in 1951 Zelbio had 383 inhabitants; today (2026) it has 182 — 52.5% fewer.
The ageing index is one of the starkest signals: in Zelbio there are 280 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 141 inhabitants for Zelbio: an expected decline of 22.5% from today.
Compared with the provincial average of Como (about 4,072 residents per municipality), Zelbio is a markedly smaller centre.
Among the 147 municipalities of the province of Como, Zelbio ranks 144 by population.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 196 |
| 2020 | 195 |
| 2021 | 186 |
| 2022 | 182 |
| 2023 | 188 |
| 2024 | 185 |
| 2025 | 184 |
| 2026 | 182 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 105 | 57.7% |
| Women | 77 | 42.3% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 0 |
| 2022 | 1 |
| 2023 | 0 |
| 2024 | 1 |
| 2025 | 0 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 383 |
| 1961 | 332 |
| 1971 | 259 |
| 1981 | 209 |
| 1991 | 182 |
| 2001 | 195 |
| 2011 | 220 |
| 2019 | 196 |
| 2020 | 195 |
| 2021 | 186 |
| 2022 | 182 |
| 2023 | 188 |
| 2024 | 185 |
| 2025 | 184 |
| 2026 | 182 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 182 | 49.5% |
| Married | 128 | 34.8% |
| Divorced | 24 | 6.5% |
| Widowed | 34 | 9.2% |
School-Age Population (2026)
Total 0-18 years: 25
| Valore | |
|---|---|
| Nido (0-2) | 1 |
| Infanzia (3-5) | 3 |
| Primaria (6-10) | 6 |
| Medie (11-13) | 1 |
| Superiori (14-18) | 14 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Zelbio population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/zelbio-013246" title="Population pyramid of Zelbio — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/zelbio-013246" alt="Population pyramid of Zelbio — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>