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Population & demographics
All demographic data for Zumaglia: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Zumaglia.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Zumaglia.
Zumaglia is a small municipality in the province of Biella, Piemonte region. With a population of 959 inhabitants and a density of 340 per km², it covers an area of 2.8 km². The average declared income is 24.867 €.
Zumaglia in numbers: the analysis
Zumaglia has grown substantially since 1951: from 871 inhabitants then to 959 in 2026, an increase of 10.1%.
The ageing index is one of the starkest signals: in Zumaglia there are 361 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 768 inhabitants for Zumaglia: an expected decline of 19.9% from today.
Compared with the provincial average of Biella (about 2,273 residents per municipality), Zumaglia is a markedly smaller centre.
Among the 74 municipalities of the province of Biella, Zumaglia ranks 39 by population.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 1023 |
| 2020 | 982 |
| 2021 | 988 |
| 2022 | 983 |
| 2023 | 978 |
| 2024 | 961 |
| 2025 | 961 |
| 2026 | 959 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 462 | 48.2% |
| Women | 497 | 51.8% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 6 |
| 2022 | 7 |
| 2023 | 4 |
| 2024 | 5 |
| 2025 | 3 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 871 |
| 1961 | 944 |
| 1971 | 926 |
| 1981 | 942 |
| 1991 | 989 |
| 2001 | 1073 |
| 2011 | 1129 |
| 2019 | 1023 |
| 2020 | 982 |
| 2021 | 988 |
| 2022 | 983 |
| 2023 | 978 |
| 2024 | 961 |
| 2025 | 961 |
| 2026 | 959 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 794 | 41.3% |
| Married | 886 | 46.1% |
| Divorced | 68 | 3.5% |
| Widowed | 174 | 9.1% |
School-Age Population (2026)
Total 0-18 years: 119
| Valore | |
|---|---|
| Nido (0-2) | 14 |
| Infanzia (3-5) | 20 |
| Primaria (6-10) | 30 |
| Medie (11-13) | 15 |
| Superiori (14-18) | 40 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Zumaglia population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/zumaglia-096083" title="Population pyramid of Zumaglia — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/zumaglia-096083" alt="Population pyramid of Zumaglia — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>