Castiadas: 1740 inhabitants (2026)
ISTAT Code: 111011
39.2756°N, 9.5236°E
Explore related data
Jump from local statistics to linked rankings and territorial pages.
Region page
Open the full profile page for Sardegna.
Province page
Open the full profile page for the province of Sud Sardegna.
Income overview
Explore the income map and the municipalities with the highest and lowest values.
Regional income ranking
View the municipalities in Sardegna ranked by average income.
Provincial population ranking
View the municipalities in the province of Sud Sardegna ranked by population.
Compare this municipality
Open the comparison page with this municipality preselected.
Population & demographics
All demographic data for Castiadas: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Castiadas.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Castiadas.
Castiadas is a small municipality in the province of Sud Sardegna, Sardegna region. With a population of 1740 inhabitants and a density of 17 per km², it covers an area of 104.2 km². The average declared income is 19.302 €.
Castiadas in numbers: the analysis
Looking ahead to 2050, projections give Castiadas about 2,127 inhabitants, up 22.2% from today.
The ageing index is one of the starkest signals: in Castiadas there are 266 residents over 65 for every 100 under 14, well above the national average.
Castiadas has grown substantially since 2019: from 1,641 inhabitants then to 1,740 in 2026, an increase of 6%.
Among the 107 municipalities of the province of Sud Sardegna, Castiadas ranks 55 by population.
Compared with the provincial average of Sud Sardegna (about 3,058 residents per municipality), Castiadas is a markedly smaller centre.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 1641 |
| 2020 | 1664 |
| 2021 | 1652 |
| 2022 | 1661 |
| 2023 | 1698 |
| 2024 | 1707 |
| 2025 | 1724 |
| 2026 | 1740 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 890 | 51.1% |
| Women | 850 | 48.9% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 9 |
| 2022 | 15 |
| 2023 | 6 |
| 2024 | 10 |
| 2025 | 12 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 2019 | 1641 |
| 2020 | 1664 |
| 2021 | 1652 |
| 2022 | 1661 |
| 2023 | 1698 |
| 2024 | 1707 |
| 2025 | 1724 |
| 2026 | 1740 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 1542 | 44.7% |
| Married | 1606 | 46.6% |
| Divorced | 126 | 3.7% |
| Widowed | 174 | 5.0% |
School-Age Population (2026)
Total 0-18 years: 235
| Valore | |
|---|---|
| Nido (0-2) | 32 |
| Infanzia (3-5) | 36 |
| Primaria (6-10) | 62 |
| Medie (11-13) | 37 |
| Superiori (14-18) | 68 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Castiadas population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/castiadas-111011" title="Population pyramid of Castiadas — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/castiadas-111011" alt="Population pyramid of Castiadas — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>