Isola Sant'Antonio: 654 inhabitants (2026)
ISTAT Code: 006087
45.0309°N, 8.8504°E
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Population & demographics
All demographic data for Isola Sant'Antonio: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Isola Sant'Antonio.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Isola Sant'Antonio.
Isola Sant'Antonio is a small municipality in the province of Alessandria, Piemonte region. With a population of 654 inhabitants and a density of 26 per km², it covers an area of 24.9 km². The average declared income is 21.782 €.
Isola Sant'Antonio in numbers: the analysis
The census record tells a story of long decline: in 1951 Isola Sant'Antonio had 1,246 inhabitants; today (2026) it has 654 — 47.5% fewer.
The ageing index is one of the starkest signals: in Isola Sant'Antonio there are 258 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 596 inhabitants for Isola Sant'Antonio: an expected decline of 8.9% from today.
Compared with the provincial average of Alessandria (about 2,182 residents per municipality), Isola Sant'Antonio is a markedly smaller centre.
Among the 187 municipalities of the province of Alessandria, Isola Sant'Antonio ranks 94 by population.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 672 |
| 2020 | 653 |
| 2021 | 651 |
| 2022 | 644 |
| 2023 | 620 |
| 2024 | 653 |
| 2025 | 649 |
| 2026 | 654 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 368 | 56.3% |
| Women | 286 | 43.7% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 3 |
| 2022 | 4 |
| 2023 | 5 |
| 2024 | 1 |
| 2025 | 2 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 1246 |
| 1961 | 1130 |
| 1971 | 1021 |
| 1981 | 873 |
| 1991 | 791 |
| 2001 | 766 |
| 2011 | 734 |
| 2019 | 672 |
| 2020 | 653 |
| 2021 | 651 |
| 2022 | 644 |
| 2023 | 620 |
| 2024 | 653 |
| 2025 | 649 |
| 2026 | 654 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 580 | 44.7% |
| Married | 574 | 44.2% |
| Divorced | 52 | 4.0% |
| Widowed | 92 | 7.1% |
School-Age Population (2026)
Total 0-18 years: 90
| Valore | |
|---|---|
| Nido (0-2) | 10 |
| Infanzia (3-5) | 14 |
| Primaria (6-10) | 30 |
| Medie (11-13) | 18 |
| Superiori (14-18) | 18 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Isola Sant'Antonio population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/isola-sant-antonio-006087" title="Population pyramid of Isola Sant'Antonio — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/isola-sant-antonio-006087" alt="Population pyramid of Isola Sant'Antonio — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>