Isili: 2429 inhabitants (2026)
ISTAT Code: 111036
39.7418°N, 9.1067°E
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Population & demographics
All demographic data for Isili: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Isili.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Isili.
Isili is a small municipality in the province of Sud Sardegna, Sardegna region. With a population of 2429 inhabitants and a density of 36 per km², it covers an area of 68.1 km². The average declared income is 20.564 €.
Isili in numbers: the analysis
The census record tells a story of long decline: in 2019 Isili had 2,584 inhabitants; today (2026) it has 2,429 — 6% fewer.
The ageing index is one of the starkest signals: in Isili there are 391 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 1,965 inhabitants for Isili: an expected decline of 19.1% from today.
Among the 107 municipalities of the province of Sud Sardegna, Isili ranks 41 by population.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 2584 |
| 2020 | 2552 |
| 2021 | 2551 |
| 2022 | 2503 |
| 2023 | 2452 |
| 2024 | 2443 |
| 2025 | 2428 |
| 2026 | 2429 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 1220 | 50.2% |
| Women | 1209 | 49.8% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 16 |
| 2022 | 8 |
| 2023 | 14 |
| 2024 | 8 |
| 2025 | 12 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 2019 | 2584 |
| 2020 | 2552 |
| 2021 | 2551 |
| 2022 | 2503 |
| 2023 | 2452 |
| 2024 | 2443 |
| 2025 | 2428 |
| 2026 | 2429 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 2156 | 44.4% |
| Married | 2156 | 44.4% |
| Divorced | 108 | 2.2% |
| Widowed | 436 | 9.0% |
School-Age Population (2026)
Total 0-18 years: 294
| Valore | |
|---|---|
| Nido (0-2) | 34 |
| Infanzia (3-5) | 34 |
| Primaria (6-10) | 73 |
| Medie (11-13) | 47 |
| Superiori (14-18) | 106 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Isili population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/isili-111036" title="Population pyramid of Isili — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/isili-111036" alt="Population pyramid of Isili — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>