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Population & demographics
All demographic data for Dorzano: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Dorzano.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Dorzano.
Dorzano is a small municipality in the province of Biella, Piemonte region. With a population of 528 inhabitants and a density of 107 per km², it covers an area of 4.9 km². The average declared income is 23.373 €.
Dorzano in numbers: the analysis
The ageing index is one of the starkest signals: in Dorzano there are 307 residents over 65 for every 100 under 14, well above the national average.
For 2050 the projections point to an essentially unchanged population: about 525 inhabitants.
Compared with the provincial average of Biella (about 2,273 residents per municipality), Dorzano is a markedly smaller centre.
Among the 74 municipalities of the province of Biella, Dorzano ranks 54 by population.
Dorzano has grown substantially since 1951: from 452 inhabitants then to 528 in 2026, an increase of 16.8%.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 529 |
| 2020 | 543 |
| 2021 | 539 |
| 2022 | 528 |
| 2023 | 530 |
| 2024 | 532 |
| 2025 | 535 |
| 2026 | 528 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 272 | 51.5% |
| Women | 256 | 48.5% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 1 |
| 2024 | 5 |
| 2025 | 2 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 452 |
| 1961 | 443 |
| 1971 | 331 |
| 1981 | 379 |
| 1991 | 387 |
| 2001 | 446 |
| 2011 | 508 |
| 2019 | 529 |
| 2020 | 543 |
| 2021 | 539 |
| 2022 | 528 |
| 2023 | 530 |
| 2024 | 532 |
| 2025 | 535 |
| 2026 | 528 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 470 | 43.9% |
| Married | 444 | 41.5% |
| Divorced | 62 | 5.8% |
| Widowed | 94 | 8.8% |
School-Age Population (2026)
Total 0-18 years: 67
| Valore | |
|---|---|
| Nido (0-2) | 7 |
| Infanzia (3-5) | 6 |
| Primaria (6-10) | 19 |
| Medie (11-13) | 11 |
| Superiori (14-18) | 24 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Dorzano population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/dorzano-096025" title="Population pyramid of Dorzano — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/dorzano-096025" alt="Population pyramid of Dorzano — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>