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Population & demographics
All demographic data for Aci Castello: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Aci Castello.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Aci Castello.
Aci Castello is a medium-sized municipality in the province of Catania, Sicilia region. With a population of 17.482 inhabitants and a density of 1996 per km², it covers an area of 8.8 km². The average declared income is 27.706 €.
Aci Castello in numbers: the analysis
Among the 58 municipalities of the province of Catania, Aci Castello ranks 17 by population.
Aci Castello has grown substantially since 1951: from 7,804 inhabitants then to 17,482 in 2026, an increase of 124%.
The ageing index is one of the starkest signals: in Aci Castello there are 251 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 16,355 inhabitants for Aci Castello: an expected decline of 6.4% from today.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 17.825 |
| 2020 | 17.662 |
| 2021 | 17.987 |
| 2022 | 17.975 |
| 2023 | 17.880 |
| 2024 | 17.755 |
| 2025 | 17.713 |
| 2026 | 17.482 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 8419 | 48.2% |
| Women | 9063 | 51.8% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 130 |
| 2022 | 126 |
| 2023 | 114 |
| 2024 | 116 |
| 2025 | 102 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 7804 |
| 1961 | 9293 |
| 1971 | 10.437 |
| 1981 | 14.020 |
| 1991 | 17.927 |
| 2001 | 18.272 |
| 2011 | 18.122 |
| 2019 | 17.825 |
| 2020 | 17.662 |
| 2021 | 17.987 |
| 2022 | 17.975 |
| 2023 | 17.880 |
| 2024 | 17.755 |
| 2025 | 17.713 |
| 2026 | 17.482 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 14.814 | 41.8% |
| Married | 16.558 | 46.7% |
| Divorced | 1570 | 4.4% |
| Widowed | 2484 | 7.0% |
School-Age Population (2026)
Total 0-18 years: 2543
| Valore | |
|---|---|
| Nido (0-2) | 328 |
| Infanzia (3-5) | 339 |
| Primaria (6-10) | 657 |
| Medie (11-13) | 435 |
| Superiori (14-18) | 784 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Aci Castello population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/aci-castello-087002" title="Population pyramid of Aci Castello — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/aci-castello-087002" alt="Population pyramid of Aci Castello — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>