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Population & demographics
All demographic data for Colonno: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Colonno.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Colonno.
Colonno is a small municipality in the province of Como, Lombardia region. With a population of 432 inhabitants and a density of 73 per km², it covers an area of 5.9 km². The average declared income is 24.231 €.
Colonno in numbers: the analysis
The ageing index is one of the starkest signals: in Colonno there are 531 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 265 inhabitants for Colonno: an expected decline of 38.7% from today.
Compared with the provincial average of Como (about 4,072 residents per municipality), Colonno is a markedly smaller centre.
Among the 147 municipalities of the province of Como, Colonno ranks 130 by population.
The census record tells a story of long decline: in 1951 Colonno had 899 inhabitants; today (2026) it has 432 — 51.9% fewer.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 498 |
| 2020 | 493 |
| 2021 | 469 |
| 2022 | 447 |
| 2023 | 453 |
| 2024 | 434 |
| 2025 | 425 |
| 2026 | 432 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 217 | 50.2% |
| Women | 215 | 49.8% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 0 |
| 2024 | 4 |
| 2025 | 3 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 899 |
| 1961 | 863 |
| 1971 | 816 |
| 1981 | 666 |
| 1991 | 583 |
| 2001 | 561 |
| 2011 | 529 |
| 2019 | 498 |
| 2020 | 493 |
| 2021 | 469 |
| 2022 | 447 |
| 2023 | 453 |
| 2024 | 434 |
| 2025 | 425 |
| 2026 | 432 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 348 | 40.9% |
| Married | 400 | 47.1% |
| Divorced | 36 | 4.2% |
| Widowed | 66 | 7.8% |
School-Age Population (2026)
Total 0-18 years: 41
| Valore | |
|---|---|
| Nido (0-2) | 7 |
| Infanzia (3-5) | 3 |
| Primaria (6-10) | 7 |
| Medie (11-13) | 8 |
| Superiori (14-18) | 16 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Colonno population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/colonno-013074" title="Population pyramid of Colonno — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/colonno-013074" alt="Population pyramid of Colonno — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>