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Population & demographics
All demographic data for Castel San Pietro Romano: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Castel San Pietro Romano.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Castel San Pietro Romano.
Castel San Pietro Romano is a small municipality in the province of Roma, Lazio region. With a population of 838 inhabitants and a density of 57 per km², it covers an area of 14.8 km². The average declared income is 21.343 €.
Castel San Pietro Romano in numbers: the analysis
The generational balance is in line with the norm: the ageing index of Castel San Pietro Romano is 241 (over-65s per 100 under-14s).
Demographic projections to 2050 estimate about 792 inhabitants for Castel San Pietro Romano: an expected decline of 5.5% from today.
Compared with the provincial average of Roma (about 34,917 residents per municipality), Castel San Pietro Romano is a markedly smaller centre.
Among the 121 municipalities of the province of Roma, Castel San Pietro Romano ranks 99 by population.
Castel San Pietro Romano has grown substantially since 1951: from 666 inhabitants then to 838 in 2026, an increase of 25.8%.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 852 |
| 2020 | 845 |
| 2021 | 839 |
| 2022 | 841 |
| 2023 | 846 |
| 2024 | 844 |
| 2025 | 850 |
| 2026 | 838 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 410 | 48.9% |
| Women | 428 | 51.1% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 2 |
| 2022 | 4 |
| 2023 | 2 |
| 2024 | 3 |
| 2025 | 2 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 666 |
| 1961 | 688 |
| 1971 | 636 |
| 1981 | 631 |
| 1991 | 698 |
| 2001 | 743 |
| 2011 | 855 |
| 2019 | 852 |
| 2020 | 845 |
| 2021 | 839 |
| 2022 | 841 |
| 2023 | 846 |
| 2024 | 844 |
| 2025 | 850 |
| 2026 | 838 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 758 | 44.6% |
| Married | 784 | 46.1% |
| Divorced | 60 | 3.5% |
| Widowed | 98 | 5.8% |
School-Age Population (2026)
Total 0-18 years: 101
| Valore | |
|---|---|
| Nido (0-2) | 7 |
| Infanzia (3-5) | 15 |
| Primaria (6-10) | 28 |
| Medie (11-13) | 18 |
| Superiori (14-18) | 33 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Castel San Pietro Romano population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/castel-san-pietro-romano-058025" title="Population pyramid of Castel San Pietro Romano — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/castel-san-pietro-romano-058025" alt="Population pyramid of Castel San Pietro Romano — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>