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Population & demographics
All demographic data for Arnasco: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Arnasco.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Arnasco.
Arnasco is a small municipality in the province of Savona, Liguria region. With a population of 529 inhabitants and a density of 83 per km², it covers an area of 6.4 km². The average declared income is 19.972 €.
Arnasco in numbers: the analysis
Compared with the provincial average of Savona (about 3,868 residents per municipality), Arnasco is a markedly smaller centre.
Among the 69 municipalities of the province of Savona, Arnasco ranks 54 by population.
Arnasco has grown substantially since 1951: from 418 inhabitants then to 529 in 2026, an increase of 26.6%.
The ageing index is one of the starkest signals: in Arnasco there are 391 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 336 inhabitants for Arnasco: an expected decline of 36.5% from today.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 604 |
| 2020 | 590 |
| 2021 | 585 |
| 2022 | 573 |
| 2023 | 554 |
| 2024 | 554 |
| 2025 | 548 |
| 2026 | 529 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 271 | 51.2% |
| Women | 258 | 48.8% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 1 |
| 2022 | 3 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 0 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 418 |
| 1961 | 403 |
| 1971 | 427 |
| 1981 | 448 |
| 1991 | 477 |
| 2001 | 563 |
| 2011 | 630 |
| 2019 | 604 |
| 2020 | 590 |
| 2021 | 585 |
| 2022 | 573 |
| 2023 | 554 |
| 2024 | 554 |
| 2025 | 548 |
| 2026 | 529 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 426 | 38.9% |
| Married | 502 | 45.8% |
| Divorced | 60 | 5.5% |
| Widowed | 108 | 9.9% |
School-Age Population (2026)
Total 0-18 years: 67
| Valore | |
|---|---|
| Nido (0-2) | 4 |
| Infanzia (3-5) | 5 |
| Primaria (6-10) | 14 |
| Medie (11-13) | 12 |
| Superiori (14-18) | 32 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Arnasco population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/arnasco-009007" title="Population pyramid of Arnasco — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/arnasco-009007" alt="Population pyramid of Arnasco — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>