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Population & demographics
All demographic data for Osiglia: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Osiglia.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Osiglia.
Osiglia is a small municipality in the province of Savona, Liguria region. With a population of 401 inhabitants and a density of 14 per km², it covers an area of 27.9 km². The average declared income is 20.238 €.
Osiglia in numbers: the analysis
Demographic projections to 2050 estimate about 250 inhabitants for Osiglia: an expected decline of 37.7% from today.
Compared with the provincial average of Savona (about 3,868 residents per municipality), Osiglia is a markedly smaller centre.
Among the 69 municipalities of the province of Savona, Osiglia ranks 58 by population.
The census record tells a story of long decline: in 1951 Osiglia had 1,018 inhabitants; today (2026) it has 401 — 60.6% fewer.
The ageing index is one of the starkest signals: in Osiglia there are 497 residents over 65 for every 100 under 14, well above the national average.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 460 |
| 2020 | 447 |
| 2021 | 439 |
| 2022 | 443 |
| 2023 | 430 |
| 2024 | 434 |
| 2025 | 433 |
| 2026 | 401 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 201 | 50.1% |
| Women | 200 | 49.9% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 0 |
| 2022 | 1 |
| 2023 | 0 |
| 2024 | 2 |
| 2025 | 3 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 1018 |
| 1961 | 803 |
| 1971 | 686 |
| 1981 | 572 |
| 1991 | 504 |
| 2001 | 470 |
| 2011 | 469 |
| 2019 | 460 |
| 2020 | 447 |
| 2021 | 439 |
| 2022 | 443 |
| 2023 | 430 |
| 2024 | 434 |
| 2025 | 433 |
| 2026 | 401 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 330 | 38.1% |
| Married | 416 | 48.0% |
| Divorced | 40 | 4.6% |
| Widowed | 80 | 9.2% |
School-Age Population (2026)
Total 0-18 years: 44
| Valore | |
|---|---|
| Nido (0-2) | 6 |
| Infanzia (3-5) | 8 |
| Primaria (6-10) | 8 |
| Medie (11-13) | 9 |
| Superiori (14-18) | 13 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Osiglia population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/osiglia-009046" title="Population pyramid of Osiglia — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/osiglia-009046" alt="Population pyramid of Osiglia — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>