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Population & demographics
All demographic data for Castrocielo: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Castrocielo.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Castrocielo.
Castrocielo is a small municipality in the province of Frosinone, Lazio region. With a population of 3727 inhabitants and a density of 135 per km², it covers an area of 27.6 km². The average declared income is 22.080 €.
Castrocielo in numbers: the analysis
The generational balance is in line with the norm: the ageing index of Castrocielo is 206 (over-65s per 100 under-14s).
Castrocielo has grown substantially since 1951: from 3,192 inhabitants then to 3,727 in 2026, an increase of 16.8%.
Among the 91 municipalities of the province of Frosinone, Castrocielo ranks 31 by population.
Demographic projections to 2050 estimate about 3,143 inhabitants for Castrocielo: an expected decline of 15.7% from today.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 3917 |
| 2020 | 3874 |
| 2021 | 3841 |
| 2022 | 3848 |
| 2023 | 3783 |
| 2024 | 3784 |
| 2025 | 3733 |
| 2026 | 3727 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 1800 | 48.3% |
| Women | 1927 | 51.7% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 24 |
| 2022 | 27 |
| 2023 | 33 |
| 2024 | 16 |
| 2025 | 22 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 3192 |
| 1961 | 2859 |
| 1971 | 2913 |
| 1981 | 3528 |
| 1991 | 3710 |
| 2001 | 3750 |
| 2011 | 3969 |
| 2019 | 3917 |
| 2020 | 3874 |
| 2021 | 3841 |
| 2022 | 3848 |
| 2023 | 3783 |
| 2024 | 3784 |
| 2025 | 3733 |
| 2026 | 3727 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 2974 | 39.8% |
| Married | 3804 | 51.0% |
| Divorced | 178 | 2.4% |
| Widowed | 510 | 6.8% |
School-Age Population (2026)
Total 0-18 years: 629
| Valore | |
|---|---|
| Nido (0-2) | 71 |
| Infanzia (3-5) | 79 |
| Primaria (6-10) | 168 |
| Medie (11-13) | 111 |
| Superiori (14-18) | 200 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Castrocielo population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/castrocielo-060022" title="Population pyramid of Castrocielo — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/castrocielo-060022" alt="Population pyramid of Castrocielo — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>