Sant'Antioco: 10.404 inhabitants (2026)
ISTAT Code: 111071
39.0667°N, 8.4551°E
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Population & demographics
All demographic data for Sant'Antioco: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Sant'Antioco.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Sant'Antioco.
Sant'Antioco is a medium-sized municipality in the province of Sud Sardegna, Sardegna region. With a population of 10.404 inhabitants and a density of 117 per km², it covers an area of 89.0 km². The average declared income is 18.496 €.
Sant'Antioco in numbers: the analysis
The ageing index is one of the starkest signals: in Sant'Antioco there are 405 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 8,684 inhabitants for Sant'Antioco: an expected decline of 16.5% from today.
The average municipality in the province of Sud Sardegna has about 3,058 residents: Sant'Antioco has 3.4 times as many.
Few municipalities in Sardegna are larger: it ranks no. 26 by population out of 377.
By population, Sant'Antioco ranks no. 5 among the 107 municipalities of the province of Sud Sardegna.
The census record tells a story of long decline: in 2019 Sant'Antioco had 10,967 inhabitants; today (2026) it has 10,404 — 5.1% fewer.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 10.967 |
| 2020 | 10.854 |
| 2021 | 10.767 |
| 2022 | 10.756 |
| 2023 | 10.668 |
| 2024 | 10.601 |
| 2025 | 10.490 |
| 2026 | 10.404 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 5097 | 49.0% |
| Women | 5307 | 51.0% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 43 |
| 2022 | 40 |
| 2023 | 30 |
| 2024 | 35 |
| 2025 | 32 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 2019 | 10.967 |
| 2020 | 10.854 |
| 2021 | 10.767 |
| 2022 | 10.756 |
| 2023 | 10.668 |
| 2024 | 10.601 |
| 2025 | 10.490 |
| 2026 | 10.404 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 8952 | 42.7% |
| Married | 8968 | 42.7% |
| Divorced | 1126 | 5.4% |
| Widowed | 1934 | 9.2% |
School-Age Population (2026)
Total 0-18 years: 1155
| Valore | |
|---|---|
| Nido (0-2) | 101 |
| Infanzia (3-5) | 139 |
| Primaria (6-10) | 304 |
| Medie (11-13) | 224 |
| Superiori (14-18) | 387 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Sant'Antioco population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/sant-antioco-111071" title="Population pyramid of Sant'Antioco — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/sant-antioco-111071" alt="Population pyramid of Sant'Antioco — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>