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Population & demographics
All demographic data for Arzano: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Arzano.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Arzano.
Arzano is a medium-sized municipality in the province of Napoli, Campania region. With a population of 31.613 inhabitants and a density of 6260 per km², it covers an area of 5.0 km². The average declared income is 18.497 €.
Arzano in numbers: the analysis
The generational balance is in line with the norm: the ageing index of Arzano is 157 (over-65s per 100 under-14s).
Demographic projections to 2050 estimate about 24,648 inhabitants for Arzano: an expected decline of 22% from today.
Few municipalities in Campania are larger: it ranks no. 38 by population out of 550.
Among the 92 municipalities of the province of Napoli, Arzano ranks 23 by population.
Arzano has grown substantially since 1951: from 13,225 inhabitants then to 31,613 in 2026, an increase of 139%.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 33.993 |
| 2020 | 33.756 |
| 2021 | 32.750 |
| 2022 | 32.465 |
| 2023 | 32.057 |
| 2024 | 31.938 |
| 2025 | 31.797 |
| 2026 | 31.613 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 15.468 | 48.9% |
| Women | 16.145 | 51.1% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 254 |
| 2022 | 258 |
| 2023 | 236 |
| 2024 | 216 |
| 2025 | 221 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 13.225 |
| 1961 | 15.842 |
| 1971 | 24.035 |
| 1981 | 34.961 |
| 1991 | 40.098 |
| 2001 | 38.510 |
| 2011 | 34.933 |
| 2019 | 33.993 |
| 2020 | 33.756 |
| 2021 | 32.750 |
| 2022 | 32.465 |
| 2023 | 32.057 |
| 2024 | 31.938 |
| 2025 | 31.797 |
| 2026 | 31.613 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 27.300 | 42.9% |
| Married | 31.074 | 48.9% |
| Divorced | 874 | 1.4% |
| Widowed | 4332 | 6.8% |
School-Age Population (2026)
Total 0-18 years: 5841
| Valore | |
|---|---|
| Nido (0-2) | 677 |
| Infanzia (3-5) | 756 |
| Primaria (6-10) | 1496 |
| Medie (11-13) | 1025 |
| Superiori (14-18) | 1887 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Arzano population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/arzano-063005" title="Population pyramid of Arzano — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/arzano-063005" alt="Population pyramid of Arzano — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>