














Explore related data
Jump from local statistics to linked rankings and territorial pages.
Region page
Open the full profile page for Campania.
Province page
Open the full profile page for the province of Napoli.
Income overview
Explore the income map and the municipalities with the highest and lowest values.
Regional income ranking
View the municipalities in Campania ranked by average income.
Provincial population ranking
View the municipalities in the province of Napoli ranked by population.
Compare this municipality
Open the comparison page with this municipality preselected.
Population & demographics
All demographic data for Terzigno: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Terzigno.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Terzigno.
Terzigno is a medium-sized municipality in the province of Napoli, Campania region. With a population of 17.373 inhabitants and a density of 735 per km², it covers an area of 23.6 km². The average declared income is 16.238 €.
Terzigno in numbers: the analysis
Terzigno has grown substantially since 1951: from 8,541 inhabitants then to 17,373 in 2026, an increase of 103.4%.
The generational balance is in line with the norm: the ageing index of Terzigno is 125 (over-65s per 100 under-14s).
Demographic projections to 2050 estimate about 15,379 inhabitants for Terzigno: an expected decline of 11.5% from today.
Compared with the provincial average of Napoli (about 32,118 residents per municipality), Terzigno is a markedly smaller centre.
Among the 92 municipalities of the province of Napoli, Terzigno ranks 43 by population.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 18.002 |
| 2020 | 17.811 |
| 2021 | 17.482 |
| 2022 | 17.256 |
| 2023 | 17.318 |
| 2024 | 17.298 |
| 2025 | 17.260 |
| 2026 | 17.373 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 8802 | 50.7% |
| Women | 8571 | 49.3% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 143 |
| 2022 | 153 |
| 2023 | 124 |
| 2024 | 120 |
| 2025 | 141 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 8541 |
| 1961 | 10.160 |
| 1971 | 10.947 |
| 1981 | 10.915 |
| 1991 | 13.653 |
| 2001 | 15.870 |
| 2011 | 17.367 |
| 2019 | 18.002 |
| 2020 | 17.811 |
| 2021 | 17.482 |
| 2022 | 17.256 |
| 2023 | 17.318 |
| 2024 | 17.298 |
| 2025 | 17.260 |
| 2026 | 17.373 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 16.240 | 47.0% |
| Married | 16.170 | 46.8% |
| Divorced | 348 | 1.0% |
| Widowed | 1762 | 5.1% |
School-Age Population (2026)
Total 0-18 years: 3269
| Valore | |
|---|---|
| Nido (0-2) | 396 |
| Infanzia (3-5) | 443 |
| Primaria (6-10) | 853 |
| Medie (11-13) | 537 |
| Superiori (14-18) | 1040 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Terzigno population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/terzigno-063082" title="Population pyramid of Terzigno — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/terzigno-063082" alt="Population pyramid of Terzigno — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>