














Explore related data
Jump from local statistics to linked rankings and territorial pages.
Region page
Open the full profile page for Lazio.
Province page
Open the full profile page for the province of Frosinone.
Income overview
Explore the income map and the municipalities with the highest and lowest values.
Regional income ranking
View the municipalities in Lazio ranked by average income.
Provincial population ranking
View the municipalities in the province of Frosinone ranked by population.
Compare this municipality
Open the comparison page with this municipality preselected.
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>