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Population & demographics
All demographic data for San Gennaro Vesuviano: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for San Gennaro Vesuviano.
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Air quality (PM2.5, PM10, NO2) and land consumption data for San Gennaro Vesuviano.
San Gennaro Vesuviano is a medium-sized municipality in the province of Napoli, Campania region. With a population of 12.164 inhabitants and a density of 1760 per km², it covers an area of 6.9 km². The average declared income is 18.525 €.
San Gennaro Vesuviano in numbers: the analysis
Looking ahead to 2050, projections give San Gennaro Vesuviano about 13,539 inhabitants, up 11.3% from today.
Compared with the provincial average of Napoli (about 32,118 residents per municipality), San Gennaro Vesuviano is a markedly smaller centre.
Among the 92 municipalities of the province of Napoli, San Gennaro Vesuviano ranks 56 by population.
San Gennaro Vesuviano has grown substantially since 1951: from 5,588 inhabitants then to 12,164 in 2026, an increase of 117.7%.
San Gennaro Vesuviano is demographically young: the ageing index stops at 100 elderly residents per 100 children.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 11.790 |
| 2020 | 11.887 |
| 2021 | 12.183 |
| 2022 | 12.031 |
| 2023 | 12.080 |
| 2024 | 12.111 |
| 2025 | 12.092 |
| 2026 | 12.164 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 6297 | 51.8% |
| Women | 5867 | 48.2% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 116 |
| 2022 | 126 |
| 2023 | 117 |
| 2024 | 111 |
| 2025 | 105 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 5588 |
| 1961 | 6099 |
| 1971 | 6454 |
| 1981 | 7251 |
| 1991 | 8287 |
| 2001 | 10.035 |
| 2011 | 11.073 |
| 2019 | 11.790 |
| 2020 | 11.887 |
| 2021 | 12.183 |
| 2022 | 12.031 |
| 2023 | 12.080 |
| 2024 | 12.111 |
| 2025 | 12.092 |
| 2026 | 12.164 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 11.544 | 47.7% |
| Married | 11.232 | 46.4% |
| Divorced | 252 | 1.0% |
| Widowed | 1156 | 4.8% |
School-Age Population (2026)
Total 0-18 years: 2471
| Valore | |
|---|---|
| Nido (0-2) | 338 |
| Infanzia (3-5) | 386 |
| Primaria (6-10) | 631 |
| Medie (11-13) | 401 |
| Superiori (14-18) | 715 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the San Gennaro Vesuviano population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/san-gennaro-vesuviano-063066" title="Population pyramid of San Gennaro Vesuviano — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/san-gennaro-vesuviano-063066" alt="Population pyramid of San Gennaro Vesuviano — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>