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Population & demographics
All demographic data for Cagliari: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Cagliari.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Cagliari.
Cagliari is a large municipality in the province of Cagliari, Sardegna region. With a population of 145.981 inhabitants and a density of 1737 per km², it covers an area of 84.0 km². The average declared income is 29.277 €.
Cagliari in numbers: the analysis
The average municipality in the province of Cagliari has about 24,463 residents: Cagliari has 6 times as many.
Cagliari is among Italy's major centres: the country's no. 27 municipality by population out of 7896.
At the regional level it sits near the very top: no. 1 most populous of the 377 municipalities in Sardegna.
Cagliari is the most populous municipality in the province of Cagliari, out of 17 in total.
Cagliari has grown substantially since 1951: from 117,292 inhabitants then to 145,981 in 2026, an increase of 24.5%.
The ageing index is one of the starkest signals: in Cagliari there are 369 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 128,529 inhabitants for Cagliari: an expected decline of 12% from today.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 151.504 |
| 2020 | 151.005 |
| 2021 | 149.572 |
| 2022 | 149.092 |
| 2023 | 148.296 |
| 2024 | 147.411 |
| 2025 | 146.692 |
| 2026 | 145.981 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 68.229 | 46.7% |
| Women | 77.752 | 53.3% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 676 |
| 2022 | 671 |
| 2023 | 586 |
| 2024 | 627 |
| 2025 | 518 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 117.292 |
| 1961 | 155.931 |
| 1971 | 189.957 |
| 1981 | 197.517 |
| 1991 | 183.659 |
| 2001 | 164.249 |
| 2011 | 149.883 |
| 2019 | 151.504 |
| 2020 | 151.005 |
| 2021 | 149.572 |
| 2022 | 149.092 |
| 2023 | 148.296 |
| 2024 | 147.411 |
| 2025 | 146.692 |
| 2026 | 145.981 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 140.418 | 47.9% |
| Married | 114.774 | 39.2% |
| Divorced | 13.724 | 4.7% |
| Widowed | 24.170 | 8.2% |
School-Age Population (2026)
Total 0-18 years: 16.724
| Valore | |
|---|---|
| Nido (0-2) | 1703 |
| Infanzia (3-5) | 2104 |
| Primaria (6-10) | 4128 |
| Medie (11-13) | 3086 |
| Superiori (14-18) | 5703 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Cagliari population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/cagliari-092009" title="Population pyramid of Cagliari — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/cagliari-092009" alt="Population pyramid of Cagliari — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>