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Population & demographics
All demographic data for Castell'Alfero: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Castell'Alfero.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Castell'Alfero.
Castell'Alfero is a small municipality in the province of Asti, Piemonte region. With a population of 2588 inhabitants and a density of 130 per km², it covers an area of 20.0 km². The average declared income is 26.843 €.
Castell'Alfero in numbers: the analysis
Castell'Alfero has grown substantially since 1951: from 2,280 inhabitants then to 2,588 in 2026, an increase of 13.5%.
The ageing index is one of the starkest signals: in Castell'Alfero there are 272 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 2,328 inhabitants for Castell'Alfero: an expected decline of 10% from today.
By population, Castell'Alfero ranks no. 11 among the 117 municipalities of the province of Asti.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 2669 |
| 2020 | 2679 |
| 2021 | 2657 |
| 2022 | 2637 |
| 2023 | 2616 |
| 2024 | 2603 |
| 2025 | 2610 |
| 2026 | 2588 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 1276 | 49.3% |
| Women | 1312 | 50.7% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 12 |
| 2022 | 11 |
| 2023 | 7 |
| 2024 | 10 |
| 2025 | 9 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 2280 |
| 1961 | 2150 |
| 1971 | 2167 |
| 1981 | 2513 |
| 1991 | 2580 |
| 2001 | 2691 |
| 2011 | 2750 |
| 2019 | 2669 |
| 2020 | 2679 |
| 2021 | 2657 |
| 2022 | 2637 |
| 2023 | 2616 |
| 2024 | 2603 |
| 2025 | 2610 |
| 2026 | 2588 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 2026 | 38.8% |
| Married | 2544 | 48.7% |
| Divorced | 230 | 4.4% |
| Widowed | 420 | 8.0% |
School-Age Population (2026)
Total 0-18 years: 348
| Valore | |
|---|---|
| Nido (0-2) | 30 |
| Infanzia (3-5) | 49 |
| Primaria (6-10) | 103 |
| Medie (11-13) | 59 |
| Superiori (14-18) | 107 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Castell'Alfero population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/castell-alfero-005025" title="Population pyramid of Castell'Alfero — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/castell-alfero-005025" alt="Population pyramid of Castell'Alfero — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>