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Population & demographics
All demographic data for Marigliano: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Marigliano.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Marigliano.
Marigliano is a medium-sized municipality in the province of Napoli, Campania region. With a population of 29.496 inhabitants and a density of 1312 per km², it covers an area of 22.5 km². The average declared income is 21.291 €.
Marigliano in numbers: the analysis
The generational balance is in line with the norm: the ageing index of Marigliano is 150 (over-65s per 100 under-14s).
For 2050 the projections point to an essentially unchanged population: about 30,939 inhabitants.
Few municipalities in Campania are larger: it ranks no. 43 by population out of 550.
Among the 92 municipalities of the province of Napoli, Marigliano ranks 26 by population.
Marigliano has grown substantially since 1951: from 18,538 inhabitants then to 29,496 in 2026, an increase of 59.1%.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 29.088 |
| 2020 | 28.939 |
| 2021 | 29.182 |
| 2022 | 29.166 |
| 2023 | 29.166 |
| 2024 | 29.302 |
| 2025 | 29.351 |
| 2026 | 29.496 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 14.272 | 48.4% |
| Women | 15.224 | 51.6% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 238 |
| 2022 | 224 |
| 2023 | 212 |
| 2024 | 219 |
| 2025 | 246 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 18.538 |
| 1961 | 19.412 |
| 1971 | 21.138 |
| 1981 | 25.163 |
| 1991 | 28.517 |
| 2001 | 30.083 |
| 2011 | 30.247 |
| 2019 | 29.088 |
| 2020 | 28.939 |
| 2021 | 29.182 |
| 2022 | 29.166 |
| 2023 | 29.166 |
| 2024 | 29.302 |
| 2025 | 29.351 |
| 2026 | 29.496 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 25.340 | 43.2% |
| Married | 29.164 | 49.7% |
| Divorced | 1080 | 1.8% |
| Widowed | 3104 | 5.3% |
School-Age Population (2026)
Total 0-18 years: 5306
| Valore | |
|---|---|
| Nido (0-2) | 692 |
| Infanzia (3-5) | 753 |
| Primaria (6-10) | 1354 |
| Medie (11-13) | 890 |
| Superiori (14-18) | 1617 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Marigliano population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/marigliano-063043" title="Population pyramid of Marigliano — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/marigliano-063043" alt="Population pyramid of Marigliano — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>