Delia: 3851 inhabitants (2026)
ISTAT Code: 085006
37.3561°N, 13.9276°E
Explore related data
Jump from local statistics to linked rankings and territorial pages.
Region page
Open the full profile page for Sicilia.
Province page
Open the full profile page for the province of Caltanissetta.
Income overview
Explore the income map and the municipalities with the highest and lowest values.
Regional income ranking
View the municipalities in Sicilia ranked by average income.
Provincial population ranking
View the municipalities in the province of Caltanissetta ranked by population.
Compare this municipality
Open the comparison page with this municipality preselected.
Population & demographics
All demographic data for Delia: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Delia.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Delia.
Delia is a small municipality in the province of Caltanissetta, Sicilia region. With a population of 3851 inhabitants and a density of 321 per km², it covers an area of 12.0 km². The average declared income is 13.675 €.
Delia in numbers: the analysis
Among the 22 municipalities of the province of Caltanissetta, Delia ranks 12 by population.
The census record tells a story of long decline: in 1951 Delia had 7,250 inhabitants; today (2026) it has 3,851 — 46.9% fewer.
The generational balance is in line with the norm: the ageing index of Delia is 198 (over-65s per 100 under-14s).
Demographic projections to 2050 estimate about 3,378 inhabitants for Delia: an expected decline of 12.3% from today.
Compared with the provincial average of Caltanissetta (about 11,068 residents per municipality), Delia is a markedly smaller centre.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 4001 |
| 2020 | 3984 |
| 2021 | 3958 |
| 2022 | 3903 |
| 2023 | 3883 |
| 2024 | 3871 |
| 2025 | 3849 |
| 2026 | 3851 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 1812 | 47.1% |
| Women | 2039 | 52.9% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 24 |
| 2022 | 24 |
| 2023 | 21 |
| 2024 | 25 |
| 2025 | 26 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 7250 |
| 1961 | 6673 |
| 1971 | 5122 |
| 1981 | 4855 |
| 1991 | 4537 |
| 2001 | 4350 |
| 2011 | 4325 |
| 2019 | 4001 |
| 2020 | 3984 |
| 2021 | 3958 |
| 2022 | 3903 |
| 2023 | 3883 |
| 2024 | 3871 |
| 2025 | 3849 |
| 2026 | 3851 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 3470 | 45.1% |
| Married | 3458 | 44.9% |
| Divorced | 204 | 2.7% |
| Widowed | 566 | 7.4% |
School-Age Population (2026)
Total 0-18 years: 604
| Valore | |
|---|---|
| Nido (0-2) | 76 |
| Infanzia (3-5) | 81 |
| Primaria (6-10) | 145 |
| Medie (11-13) | 114 |
| Superiori (14-18) | 188 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Delia population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/delia-085006" title="Population pyramid of Delia — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/delia-085006" alt="Population pyramid of Delia — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>