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Population & demographics
All demographic data for Sordevolo: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Sordevolo.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Sordevolo.
Sordevolo is a small municipality in the province of Biella, Piemonte region. With a population of 1260 inhabitants and a density of 90 per km², it covers an area of 14.0 km². The average declared income is 24.818 €.
Sordevolo in numbers: the analysis
The ageing index is one of the starkest signals: in Sordevolo there are 288 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 1,020 inhabitants for Sordevolo: an expected decline of 19% from today.
Compared with the provincial average of Biella (about 2,273 residents per municipality), Sordevolo is a markedly smaller centre.
Among the 74 municipalities of the province of Biella, Sordevolo ranks 33 by population.
The census record tells a story of long decline: in 1951 Sordevolo had 1,696 inhabitants; today (2026) it has 1,260 — 25.7% fewer.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 1340 |
| 2020 | 1339 |
| 2021 | 1322 |
| 2022 | 1299 |
| 2023 | 1299 |
| 2024 | 1267 |
| 2025 | 1251 |
| 2026 | 1260 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 623 | 49.4% |
| Women | 637 | 50.6% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 10 |
| 2022 | 10 |
| 2023 | 3 |
| 2024 | 6 |
| 2025 | 6 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 1696 |
| 1961 | 1634 |
| 1971 | 1481 |
| 1981 | 1372 |
| 1991 | 1304 |
| 2001 | 1334 |
| 2011 | 1330 |
| 2019 | 1340 |
| 2020 | 1339 |
| 2021 | 1322 |
| 2022 | 1299 |
| 2023 | 1299 |
| 2024 | 1267 |
| 2025 | 1251 |
| 2026 | 1260 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 1092 | 43.6% |
| Married | 1062 | 42.4% |
| Divorced | 144 | 5.8% |
| Widowed | 204 | 8.2% |
School-Age Population (2026)
Total 0-18 years: 182
| Valore | |
|---|---|
| Nido (0-2) | 15 |
| Infanzia (3-5) | 29 |
| Primaria (6-10) | 36 |
| Medie (11-13) | 32 |
| Superiori (14-18) | 70 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Sordevolo population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/sordevolo-096063" title="Population pyramid of Sordevolo — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/sordevolo-096063" alt="Population pyramid of Sordevolo — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>