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Population & demographics
All demographic data for Arenzano: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Arenzano.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Arenzano.
Arenzano is a medium-sized municipality in the province of Genova, Liguria region. With a population of 11.134 inhabitants and a density of 460 per km², it covers an area of 24.2 km². The average declared income is 33.509 €.
Arenzano in numbers: the analysis
Arenzano has grown substantially since 1951: from 5,562 inhabitants then to 11,134 in 2026, an increase of 100.2%.
By population, Arenzano ranks no. 6 among the 67 municipalities of the province of Genova.
Few municipalities in Liguria are larger: it ranks no. 16 by population out of 234.
Demographic projections to 2050 estimate about 10,424 inhabitants for Arenzano: an expected decline of 6.4% from today.
The ageing index is one of the starkest signals: in Arenzano there are 336 residents over 65 for every 100 under 14, well above the national average.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 11.350 |
| 2020 | 11.248 |
| 2021 | 11.219 |
| 2022 | 11.163 |
| 2023 | 11.076 |
| 2024 | 11.150 |
| 2025 | 11.156 |
| 2026 | 11.134 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 5316 | 47.7% |
| Women | 5818 | 52.3% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 60 |
| 2022 | 53 |
| 2023 | 59 |
| 2024 | 45 |
| 2025 | 66 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 5562 |
| 1961 | 6511 |
| 1971 | 9466 |
| 1981 | 10.973 |
| 1991 | 11.181 |
| 2001 | 11.431 |
| 2011 | 11.584 |
| 2019 | 11.350 |
| 2020 | 11.248 |
| 2021 | 11.219 |
| 2022 | 11.163 |
| 2023 | 11.076 |
| 2024 | 11.150 |
| 2025 | 11.156 |
| 2026 | 11.134 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 8604 | 38.6% |
| Married | 10.568 | 47.4% |
| Divorced | 1166 | 5.2% |
| Widowed | 1974 | 8.8% |
School-Age Population (2026)
Total 0-18 years: 1488
| Valore | |
|---|---|
| Nido (0-2) | 175 |
| Infanzia (3-5) | 195 |
| Primaria (6-10) | 353 |
| Medie (11-13) | 268 |
| Superiori (14-18) | 497 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Arenzano population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/arenzano-010001" title="Population pyramid of Arenzano — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/arenzano-010001" alt="Population pyramid of Arenzano — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>