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Population & demographics
All demographic data for Biella: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Biella.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Biella.
Biella is a medium-sized municipality in the province of Biella, Piemonte region. With a population of 43.356 inhabitants and a density of 935 per km², it covers an area of 46.4 km². The average declared income is 27.040 €.
Biella in numbers: the analysis
Few municipalities in Piemonte are larger: it ranks no. 12 by population out of 1180.
Biella is the most populous municipality in the province of Biella, out of 74 in total.
Over the long run the population of Biella has stayed essentially stable: 42,791 inhabitants in 1951, 43,356 in 2026 (less than 5% change).
The ageing index is one of the starkest signals: in Biella there are 303 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 40,220 inhabitants for Biella: an expected decline of 7.2% from today.
The average municipality in the province of Biella has about 2,273 residents: Biella has 19.1 times as many.
Biella is among Italy's major centres: the country's no. 180 municipality by population out of 7896.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 44.316 |
| 2020 | 44.208 |
| 2021 | 42.943 |
| 2022 | 42.783 |
| 2023 | 42.677 |
| 2024 | 42.850 |
| 2025 | 43.181 |
| 2026 | 43.356 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 20.754 | 47.9% |
| Women | 22.602 | 52.1% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 242 |
| 2022 | 227 |
| 2023 | 228 |
| 2024 | 231 |
| 2025 | 231 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 42.791 |
| 1961 | 50.209 |
| 1971 | 54.076 |
| 1981 | 53.714 |
| 1991 | 48.324 |
| 2001 | 45.740 |
| 2011 | 43.818 |
| 2019 | 44.316 |
| 2020 | 44.208 |
| 2021 | 42.943 |
| 2022 | 42.783 |
| 2023 | 42.677 |
| 2024 | 42.850 |
| 2025 | 43.181 |
| 2026 | 43.356 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 37.116 | 43.0% |
| Married | 35.402 | 41.0% |
| Divorced | 5738 | 6.7% |
| Widowed | 7998 | 9.3% |
School-Age Population (2026)
Total 0-18 years: 5771
| Valore | |
|---|---|
| Nido (0-2) | 706 |
| Infanzia (3-5) | 763 |
| Primaria (6-10) | 1418 |
| Medie (11-13) | 1024 |
| Superiori (14-18) | 1860 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Biella population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/biella-096004" title="Population pyramid of Biella — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/biella-096004" alt="Population pyramid of Biella — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>