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Population & demographics
All demographic data for Isola del Giglio: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Isola del Giglio.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Isola del Giglio.
Isola del Giglio is a small municipality in the province of Grosseto, Toscana region. With a population of 1279 inhabitants and a density of 53 per km², it covers an area of 24.1 km². The average declared income is 23.295 €.
Isola del Giglio in numbers: the analysis
Demographic projections to 2050 estimate about 931 inhabitants for Isola del Giglio: an expected decline of 27.2% from today.
Compared with the provincial average of Grosseto (about 7,674 residents per municipality), Isola del Giglio is a markedly smaller centre.
Among the 28 municipalities of the province of Grosseto, Isola del Giglio ranks 22 by population.
The census record tells a story of long decline: in 1951 Isola del Giglio had 2,356 inhabitants; today (2026) it has 1,279 — 45.7% fewer.
The ageing index is one of the starkest signals: in Isola del Giglio there are 512 residents over 65 for every 100 under 14, well above the national average.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 1403 |
| 2020 | 1371 |
| 2021 | 1345 |
| 2022 | 1344 |
| 2023 | 1322 |
| 2024 | 1294 |
| 2025 | 1271 |
| 2026 | 1279 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 691 | 54.0% |
| Women | 588 | 46.0% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 5 |
| 2022 | 4 |
| 2023 | 2 |
| 2024 | 5 |
| 2025 | 5 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 2356 |
| 1961 | 2259 |
| 1971 | 1711 |
| 1981 | 1660 |
| 1991 | 1558 |
| 2001 | 1406 |
| 2011 | 1418 |
| 2019 | 1403 |
| 2020 | 1371 |
| 2021 | 1345 |
| 2022 | 1344 |
| 2023 | 1322 |
| 2024 | 1294 |
| 2025 | 1271 |
| 2026 | 1279 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 1008 | 39.7% |
| Married | 1188 | 46.7% |
| Divorced | 144 | 5.7% |
| Widowed | 202 | 7.9% |
School-Age Population (2026)
Total 0-18 years: 111
| Valore | |
|---|---|
| Nido (0-2) | 15 |
| Infanzia (3-5) | 10 |
| Primaria (6-10) | 31 |
| Medie (11-13) | 21 |
| Superiori (14-18) | 34 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Isola del Giglio population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/isola-del-giglio-053012" title="Population pyramid of Isola del Giglio — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/isola-del-giglio-053012" alt="Population pyramid of Isola del Giglio — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>