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Population & demographics
All demographic data for Selargius: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Selargius.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Selargius.
Selargius is a medium-sized municipality in the province of Cagliari, Sardegna region. With a population of 28.272 inhabitants and a density of 1057 per km², it covers an area of 26.8 km². The average declared income is 24.486 €.
Selargius in numbers: the analysis
Among the 17 municipalities of the province of Cagliari, Selargius ranks 3 by population.
Selargius has grown substantially since 1951: from 6,916 inhabitants then to 28,272 in 2026, an increase of 308.8%.
The ageing index is one of the starkest signals: in Selargius there are 276 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 26,563 inhabitants for Selargius: an expected decline of 6% from today.
Few municipalities in Sardegna are larger: it ranks no. 8 by population out of 377.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 28.791 |
| 2020 | 28.737 |
| 2021 | 28.655 |
| 2022 | 28.648 |
| 2023 | 28.504 |
| 2024 | 28.437 |
| 2025 | 28.377 |
| 2026 | 28.272 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 13.599 | 48.1% |
| Women | 14.673 | 51.9% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 139 |
| 2022 | 142 |
| 2023 | 146 |
| 2024 | 108 |
| 2025 | 119 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 6916 |
| 1961 | 8768 |
| 1971 | 12.110 |
| 1981 | 18.245 |
| 1991 | 23.237 |
| 2001 | 27.440 |
| 2011 | 28.684 |
| 2019 | 28.791 |
| 2020 | 28.737 |
| 2021 | 28.655 |
| 2022 | 28.648 |
| 2023 | 28.504 |
| 2024 | 28.437 |
| 2025 | 28.377 |
| 2026 | 28.272 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 25.920 | 45.7% |
| Married | 24.820 | 43.7% |
| Divorced | 2410 | 4.2% |
| Widowed | 3588 | 6.3% |
School-Age Population (2026)
Total 0-18 years: 3698
| Valore | |
|---|---|
| Nido (0-2) | 380 |
| Infanzia (3-5) | 456 |
| Primaria (6-10) | 911 |
| Medie (11-13) | 665 |
| Superiori (14-18) | 1286 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Selargius population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/selargius-092068" title="Population pyramid of Selargius — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/selargius-092068" alt="Population pyramid of Selargius — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>