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Population & demographics
All demographic data for Castel d'Ario: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Castel d'Ario.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Castel d'Ario.
Castel d'Ario is a small municipality in the province of Mantova, Lombardia region. With a population of 4663 inhabitants and a density of 206 per km², it covers an area of 22.6 km². The average declared income is 23.580 €.
Castel d'Ario in numbers: the analysis
The census record tells a story of long decline: in 1951 Castel d'Ario had 4,964 inhabitants; today (2026) it has 4,663 — 6.1% fewer.
Among the 64 municipalities of the province of Mantova, Castel d'Ario ranks 31 by population.
Looking ahead to 2050, projections give Castel d'Ario about 5,076 inhabitants, up 8.9% from today.
The generational balance is in line with the norm: the ageing index of Castel d'Ario is 201 (over-65s per 100 under-14s).
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 4549 |
| 2020 | 4493 |
| 2021 | 4519 |
| 2022 | 4594 |
| 2023 | 4622 |
| 2024 | 4650 |
| 2025 | 4634 |
| 2026 | 4663 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 2318 | 49.7% |
| Women | 2345 | 50.3% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 37 |
| 2022 | 29 |
| 2023 | 26 |
| 2024 | 29 |
| 2025 | 29 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 4964 |
| 1961 | 4322 |
| 1971 | 4117 |
| 1981 | 3990 |
| 1991 | 3929 |
| 2001 | 4231 |
| 2011 | 4787 |
| 2019 | 4549 |
| 2020 | 4493 |
| 2021 | 4519 |
| 2022 | 4594 |
| 2023 | 4622 |
| 2024 | 4650 |
| 2025 | 4634 |
| 2026 | 4663 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 3984 | 43.0% |
| Married | 4180 | 45.1% |
| Divorced | 440 | 4.7% |
| Widowed | 664 | 7.2% |
School-Age Population (2026)
Total 0-18 years: 753
| Valore | |
|---|---|
| Nido (0-2) | 90 |
| Infanzia (3-5) | 108 |
| Primaria (6-10) | 189 |
| Medie (11-13) | 117 |
| Superiori (14-18) | 249 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Castel d'Ario population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/castel-d-ario-020014" title="Population pyramid of Castel d'Ario — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/castel-d-ario-020014" alt="Population pyramid of Castel d'Ario — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>