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Population & demographics
All demographic data for Castelmassa: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Castelmassa.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Castelmassa.
Castelmassa is a small municipality in the province of Rovigo, Veneto region. With a population of 4026 inhabitants and a density of 339 per km², it covers an area of 11.9 km². The average declared income is 24.457 €.
Castelmassa in numbers: the analysis
For 2050 the projections point to an essentially unchanged population: about 4,047 inhabitants.
Among the 50 municipalities of the province of Rovigo, Castelmassa ranks 11 by population.
The census record tells a story of long decline: in 1951 Castelmassa had 4,616 inhabitants; today (2026) it has 4,026 — 12.8% fewer.
The generational balance is in line with the norm: the ageing index of Castelmassa is 236 (over-65s per 100 under-14s).
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 4020 |
| 2020 | 3991 |
| 2021 | 4016 |
| 2022 | 3997 |
| 2023 | 3994 |
| 2024 | 3985 |
| 2025 | 4012 |
| 2026 | 4026 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 1972 | 49.0% |
| Women | 2054 | 51.0% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 22 |
| 2022 | 23 |
| 2023 | 32 |
| 2024 | 21 |
| 2025 | 22 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 4616 |
| 1961 | 4898 |
| 1971 | 5015 |
| 1981 | 5169 |
| 1991 | 4724 |
| 2001 | 4312 |
| 2011 | 4291 |
| 2019 | 4020 |
| 2020 | 3991 |
| 2021 | 4016 |
| 2022 | 3997 |
| 2023 | 3994 |
| 2024 | 3985 |
| 2025 | 4012 |
| 2026 | 4026 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 3414 | 42.5% |
| Married | 3526 | 43.9% |
| Divorced | 374 | 4.7% |
| Widowed | 710 | 8.8% |
School-Age Population (2026)
Total 0-18 years: 628
| Valore | |
|---|---|
| Nido (0-2) | 73 |
| Infanzia (3-5) | 82 |
| Primaria (6-10) | 163 |
| Medie (11-13) | 113 |
| Superiori (14-18) | 197 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Castelmassa population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/castelmassa-029012" title="Population pyramid of Castelmassa — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/castelmassa-029012" alt="Population pyramid of Castelmassa — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>