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Population & demographics
All demographic data for Trecase: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Trecase.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Trecase.
Trecase is a medium-sized municipality in the province of Napoli, Campania region. With a population of 8522 inhabitants and a density of 1375 per km², it covers an area of 6.2 km². The average declared income is 21.785 €.
Trecase in numbers: the analysis
Compared with the provincial average of Napoli (about 32,118 residents per municipality), Trecase is a markedly smaller centre.
Among the 92 municipalities of the province of Napoli, Trecase ranks 66 by population.
Trecase has grown substantially since 1951: from 4,728 inhabitants then to 8,522 in 2026, an increase of 80.2%.
The generational balance is in line with the norm: the ageing index of Trecase is 173 (over-65s per 100 under-14s).
Demographic projections to 2050 estimate about 7,625 inhabitants for Trecase: an expected decline of 10.5% from today.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 8803 |
| 2020 | 8857 |
| 2021 | 8643 |
| 2022 | 8594 |
| 2023 | 8554 |
| 2024 | 8501 |
| 2025 | 8580 |
| 2026 | 8522 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 4177 | 49.0% |
| Women | 4345 | 51.0% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 55 |
| 2022 | 72 |
| 2023 | 59 |
| 2024 | 103 |
| 2025 | 64 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 4728 |
| 1961 | 4961 |
| 1971 | 7920 |
| 1981 | 9120 |
| 1991 | 9595 |
| 2001 | 9179 |
| 2011 | 9118 |
| 2019 | 8803 |
| 2020 | 8857 |
| 2021 | 8643 |
| 2022 | 8594 |
| 2023 | 8554 |
| 2024 | 8501 |
| 2025 | 8580 |
| 2026 | 8522 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 7308 | 42.6% |
| Married | 8218 | 47.9% |
| Divorced | 398 | 2.3% |
| Widowed | 1236 | 7.2% |
School-Age Population (2026)
Total 0-18 years: 1538
| Valore | |
|---|---|
| Nido (0-2) | 227 |
| Infanzia (3-5) | 205 |
| Primaria (6-10) | 381 |
| Medie (11-13) | 267 |
| Superiori (14-18) | 458 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Trecase population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/trecase-063091" title="Population pyramid of Trecase — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/trecase-063091" alt="Population pyramid of Trecase — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>