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Population & demographics
All demographic data for Trecastagni: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Trecastagni.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Trecastagni.
Trecastagni is a medium-sized municipality in the province of Catania, Sicilia region. With a population of 11.396 inhabitants and a density of 592 per km², it covers an area of 19.3 km². The average declared income is 24.028 €.
Trecastagni in numbers: the analysis
The generational balance is in line with the norm: the ageing index of Trecastagni is 156 (over-65s per 100 under-14s).
Looking ahead to 2050, projections give Trecastagni about 13,216 inhabitants, up 16% from today.
Compared with the provincial average of Catania (about 18,406 residents per municipality), Trecastagni is a markedly smaller centre.
Among the 58 municipalities of the province of Catania, Trecastagni ranks 26 by population.
Trecastagni has grown substantially since 1951: from 3,581 inhabitants then to 11,396 in 2026, an increase of 218.2%.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 10.914 |
| 2020 | 11.000 |
| 2021 | 11.073 |
| 2022 | 11.230 |
| 2023 | 11.296 |
| 2024 | 11.313 |
| 2025 | 11.370 |
| 2026 | 11.396 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 5626 | 49.4% |
| Women | 5770 | 50.6% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 77 |
| 2022 | 82 |
| 2023 | 79 |
| 2024 | 76 |
| 2025 | 65 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 3581 |
| 1961 | 3957 |
| 1971 | 4090 |
| 1981 | 4699 |
| 1991 | 6960 |
| 2001 | 8212 |
| 2011 | 10.482 |
| 2019 | 10.914 |
| 2020 | 11.000 |
| 2021 | 11.073 |
| 2022 | 11.230 |
| 2023 | 11.296 |
| 2024 | 11.313 |
| 2025 | 11.370 |
| 2026 | 11.396 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 9804 | 43.1% |
| Married | 11.040 | 48.5% |
| Divorced | 690 | 3.0% |
| Widowed | 1206 | 5.3% |
School-Age Population (2026)
Total 0-18 years: 2067
| Valore | |
|---|---|
| Nido (0-2) | 230 |
| Infanzia (3-5) | 260 |
| Primaria (6-10) | 567 |
| Medie (11-13) | 381 |
| Superiori (14-18) | 629 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Trecastagni population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/trecastagni-087050" title="Population pyramid of Trecastagni — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/trecastagni-087050" alt="Population pyramid of Trecastagni — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>