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Population & demographics
All demographic data for Alghero: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Alghero.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Alghero.
Alghero is a medium-sized municipality in the province of Sassari, Sardegna region. With a population of 41.765 inhabitants and a density of 185 per km², it covers an area of 225.3 km². The average declared income is 22.643 €.
Alghero in numbers: the analysis
Alghero has grown substantially since 1951: from 21,374 inhabitants then to 41,765 in 2026, an increase of 95.4%.
The ageing index is one of the starkest signals: in Alghero there are 337 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 38,526 inhabitants for Alghero: an expected decline of 7.8% from today.
The average municipality in the province of Sassari has about 5,115 residents: Alghero has 8.2 times as many.
Alghero is among Italy's major centres: the country's no. 189 municipality by population out of 7896.
Few municipalities in Sardegna are larger: it ranks no. 5 by population out of 377.
By population, Alghero ranks no. 3 among the 92 municipalities of the province of Sassari.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 42.760 |
| 2020 | 42.580 |
| 2021 | 42.325 |
| 2022 | 42.458 |
| 2023 | 42.420 |
| 2024 | 42.281 |
| 2025 | 41.989 |
| 2026 | 41.765 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 20.088 | 48.1% |
| Women | 21.677 | 51.9% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 227 |
| 2022 | 214 |
| 2023 | 183 |
| 2024 | 168 |
| 2025 | 156 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 21.374 |
| 1961 | 26.688 |
| 1971 | 32.187 |
| 1981 | 36.508 |
| 1991 | 39.026 |
| 2001 | 38.404 |
| 2011 | 40.641 |
| 2019 | 42.760 |
| 2020 | 42.580 |
| 2021 | 42.325 |
| 2022 | 42.458 |
| 2023 | 42.420 |
| 2024 | 42.281 |
| 2025 | 41.989 |
| 2026 | 41.765 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 37.116 | 44.2% |
| Married | 36.418 | 43.4% |
| Divorced | 4026 | 4.8% |
| Widowed | 6378 | 7.6% |
School-Age Population (2026)
Total 0-18 years: 4935
| Valore | |
|---|---|
| Nido (0-2) | 498 |
| Infanzia (3-5) | 641 |
| Primaria (6-10) | 1266 |
| Medie (11-13) | 902 |
| Superiori (14-18) | 1628 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Alghero population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/alghero-090003" title="Population pyramid of Alghero — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/alghero-090003" alt="Population pyramid of Alghero — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>