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Population & demographics
All demographic data for Rosazza: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Rosazza.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Rosazza.
Rosazza is a small municipality in the province of Biella, Piemonte region. With a population of 95 inhabitants and a density of 11 per km², it covers an area of 8.7 km². The average declared income is 22.786 €.
Rosazza in numbers: the analysis
Looking ahead to 2050, projections give Rosazza about 114 inhabitants, up 20% from today.
Compared with the provincial average of Biella (about 2,273 residents per municipality), Rosazza is a markedly smaller centre.
Among the 74 municipalities of the province of Biella, Rosazza ranks 74 by population.
The census record tells a story of long decline: in 1951 Rosazza had 362 inhabitants; today (2026) it has 95 — 73.8% fewer.
The ageing index is one of the starkest signals: in Rosazza there are 1,800 residents over 65 for every 100 under 14, well above the national average.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 90 |
| 2020 | 90 |
| 2021 | 104 |
| 2022 | 104 |
| 2023 | 101 |
| 2024 | 97 |
| 2025 | 96 |
| 2026 | 95 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 45 | 47.4% |
| Women | 50 | 52.6% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 0 |
| 2022 | 0 |
| 2023 | 0 |
| 2024 | 0 |
| 2025 | 0 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 362 |
| 1961 | 322 |
| 1971 | 219 |
| 1981 | 141 |
| 1991 | 118 |
| 2001 | 89 |
| 2011 | 87 |
| 2019 | 90 |
| 2020 | 90 |
| 2021 | 104 |
| 2022 | 104 |
| 2023 | 101 |
| 2024 | 97 |
| 2025 | 96 |
| 2026 | 95 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 78 | 40.6% |
| Married | 90 | 46.9% |
| Divorced | 18 | 9.4% |
| Widowed | 6 | 3.1% |
School-Age Population (2026)
Total 0-18 years: 5
| Valore | |
|---|---|
| Nido (0-2) | 0 |
| Infanzia (3-5) | 0 |
| Primaria (6-10) | 0 |
| Medie (11-13) | 1 |
| Superiori (14-18) | 4 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Rosazza population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/rosazza-096055" title="Population pyramid of Rosazza — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/rosazza-096055" alt="Population pyramid of Rosazza — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>