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Population & demographics
All demographic data for Nettuno: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Nettuno.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Nettuno.
Nettuno is a medium-sized municipality in the province of Roma, Lazio region. With a population of 48.111 inhabitants and a density of 674 per km², it covers an area of 71.4 km². The average declared income is 22.059 €.
Nettuno in numbers: the analysis
Nettuno has grown substantially since 1951: from 13,893 inhabitants then to 48,111 in 2026, an increase of 246.3%.
The generational balance is in line with the norm: the ageing index of Nettuno is 221 (over-65s per 100 under-14s).
For 2050 the projections point to an essentially unchanged population: about 48,859 inhabitants.
Nettuno is among Italy's major centres: the country's no. 150 municipality by population out of 7896.
Few municipalities in Lazio are larger: it ranks no. 13 by population out of 378.
By population, Nettuno ranks no. 10 among the 121 municipalities of the province of Roma.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 47.895 |
| 2020 | 47.754 |
| 2021 | 48.500 |
| 2022 | 48.159 |
| 2023 | 48.392 |
| 2024 | 48.237 |
| 2025 | 48.145 |
| 2026 | 48.111 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 23.804 | 49.5% |
| Women | 24.307 | 50.5% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 311 |
| 2022 | 323 |
| 2023 | 269 |
| 2024 | 260 |
| 2025 | 255 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 13.893 |
| 1961 | 18.620 |
| 1971 | 24.811 |
| 1981 | 29.423 |
| 1991 | 33.827 |
| 2001 | 36.080 |
| 2011 | 45.460 |
| 2019 | 47.895 |
| 2020 | 47.754 |
| 2021 | 48.500 |
| 2022 | 48.159 |
| 2023 | 48.392 |
| 2024 | 48.237 |
| 2025 | 48.145 |
| 2026 | 48.111 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 41.944 | 43.6% |
| Married | 43.704 | 45.4% |
| Divorced | 4098 | 4.3% |
| Widowed | 6480 | 6.7% |
School-Age Population (2026)
Total 0-18 years: 7211
| Valore | |
|---|---|
| Nido (0-2) | 776 |
| Infanzia (3-5) | 1008 |
| Primaria (6-10) | 1768 |
| Medie (11-13) | 1259 |
| Superiori (14-18) | 2400 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Nettuno population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/nettuno-058072" title="Population pyramid of Nettuno — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/nettuno-058072" alt="Population pyramid of Nettuno — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>