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Population & demographics
All demographic data for Roasio: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Roasio.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Roasio.
Roasio is a small municipality in the province of Vercelli, Piemonte region. With a population of 2142 inhabitants and a density of 76 per km², it covers an area of 28.2 km². The average declared income is 23.172 €.
Roasio in numbers: the analysis
The ageing index is one of the starkest signals: in Roasio there are 293 residents over 65 for every 100 under 14, well above the national average.
The census record tells a story of long decline: in 1951 Roasio had 2,717 inhabitants; today (2026) it has 2,142 — 21.2% fewer.
Among the 82 municipalities of the province of Vercelli, Roasio ranks 17 by population.
Demographic projections to 2050 estimate about 1,577 inhabitants for Roasio: an expected decline of 26.4% from today.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 2342 |
| 2020 | 2338 |
| 2021 | 2283 |
| 2022 | 2250 |
| 2023 | 2236 |
| 2024 | 2228 |
| 2025 | 2192 |
| 2026 | 2142 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 1030 | 48.1% |
| Women | 1112 | 51.9% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 14 |
| 2022 | 11 |
| 2023 | 13 |
| 2024 | 4 |
| 2025 | 8 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 2717 |
| 1961 | 2588 |
| 1971 | 2438 |
| 1981 | 2630 |
| 1991 | 2495 |
| 2001 | 2462 |
| 2011 | 2465 |
| 2019 | 2342 |
| 2020 | 2338 |
| 2021 | 2283 |
| 2022 | 2250 |
| 2023 | 2236 |
| 2024 | 2228 |
| 2025 | 2192 |
| 2026 | 2142 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 1816 | 41.4% |
| Married | 1914 | 43.7% |
| Divorced | 284 | 6.5% |
| Widowed | 370 | 8.4% |
School-Age Population (2026)
Total 0-18 years: 285
| Valore | |
|---|---|
| Nido (0-2) | 28 |
| Infanzia (3-5) | 37 |
| Primaria (6-10) | 66 |
| Medie (11-13) | 59 |
| Superiori (14-18) | 95 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Roasio population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/roasio-002116" title="Population pyramid of Roasio — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/roasio-002116" alt="Population pyramid of Roasio — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>