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Population & demographics
All demographic data for Ardenno: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Ardenno.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Ardenno.
Ardenno is a small municipality in the province of Sondrio, Lombardia region. With a population of 3228 inhabitants and a density of 188 per km², it covers an area of 17.1 km². The average declared income is 23.110 €.
Ardenno in numbers: the analysis
The ageing index is one of the starkest signals: in Ardenno there are 254 residents over 65 for every 100 under 14, well above the national average.
Ardenno has grown substantially since 1951: from 2,771 inhabitants then to 3,228 in 2026, an increase of 16.5%.
Among the 77 municipalities of the province of Sondrio, Ardenno ranks 17 by population.
For 2050 the projections point to an essentially unchanged population: about 3,144 inhabitants.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 3253 |
| 2020 | 3251 |
| 2021 | 3213 |
| 2022 | 3222 |
| 2023 | 3220 |
| 2024 | 3217 |
| 2025 | 3219 |
| 2026 | 3228 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 1638 | 50.7% |
| Women | 1590 | 49.3% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 22 |
| 2022 | 18 |
| 2023 | 22 |
| 2024 | 19 |
| 2025 | 11 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 2771 |
| 1961 | 2861 |
| 1971 | 2774 |
| 1981 | 2937 |
| 1991 | 3018 |
| 2001 | 3122 |
| 2011 | 3270 |
| 2019 | 3253 |
| 2020 | 3251 |
| 2021 | 3213 |
| 2022 | 3222 |
| 2023 | 3220 |
| 2024 | 3217 |
| 2025 | 3219 |
| 2026 | 3228 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 2746 | 42.7% |
| Married | 2984 | 46.3% |
| Divorced | 224 | 3.5% |
| Widowed | 484 | 7.5% |
School-Age Population (2026)
Total 0-18 years: 473
| Valore | |
|---|---|
| Nido (0-2) | 54 |
| Infanzia (3-5) | 68 |
| Primaria (6-10) | 122 |
| Medie (11-13) | 80 |
| Superiori (14-18) | 149 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Ardenno population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/ardenno-014005" title="Population pyramid of Ardenno — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/ardenno-014005" alt="Population pyramid of Ardenno — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>