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Population & demographics
All demographic data for Custonaci: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Custonaci.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Custonaci.
Custonaci is a medium-sized municipality in the province of Trapani, Sicilia region. With a population of 5234 inhabitants and a density of 74 per km², it covers an area of 70.6 km². The average declared income is 17.004 €.
Custonaci in numbers: the analysis
The generational balance is in line with the norm: the ageing index of Custonaci is 192 (over-65s per 100 under-14s).
Demographic projections to 2050 estimate about 4,536 inhabitants for Custonaci: an expected decline of 13.3% from today.
Compared with the provincial average of Trapani (about 16,424 residents per municipality), Custonaci is a markedly smaller centre.
Among the 25 municipalities of the province of Trapani, Custonaci ranks 17 by population.
Custonaci has grown substantially since 1951: from 3,887 inhabitants then to 5,234 in 2026, an increase of 34.7%.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 5457 |
| 2020 | 5384 |
| 2021 | 5307 |
| 2022 | 5306 |
| 2023 | 5281 |
| 2024 | 5258 |
| 2025 | 5260 |
| 2026 | 5234 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 2607 | 49.8% |
| Women | 2627 | 50.2% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 44 |
| 2022 | 38 |
| 2023 | 40 |
| 2024 | 32 |
| 2025 | 36 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 3887 |
| 1961 | 4410 |
| 1971 | 4424 |
| 1981 | 4466 |
| 1991 | 4571 |
| 2001 | 4814 |
| 2011 | 5392 |
| 2019 | 5457 |
| 2020 | 5384 |
| 2021 | 5307 |
| 2022 | 5306 |
| 2023 | 5281 |
| 2024 | 5258 |
| 2025 | 5260 |
| 2026 | 5234 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 4290 | 40.8% |
| Married | 5218 | 49.6% |
| Divorced | 236 | 2.2% |
| Widowed | 776 | 7.4% |
School-Age Population (2026)
Total 0-18 years: 870
| Valore | |
|---|---|
| Nido (0-2) | 107 |
| Infanzia (3-5) | 124 |
| Primaria (6-10) | 221 |
| Medie (11-13) | 160 |
| Superiori (14-18) | 258 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Custonaci population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/custonaci-081007" title="Population pyramid of Custonaci — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/custonaci-081007" alt="Population pyramid of Custonaci — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>