Castel del Rio: 1224 inhabitants (2026)
ISTAT Code: 037014
44.2132°N, 11.5044°E
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Population & demographics
All demographic data for Castel del Rio: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Castel del Rio.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Castel del Rio.
Castel del Rio is a small municipality in the province of Bologna, Emilia-Romagna region. With a population of 1224 inhabitants and a density of 23 per km², it covers an area of 53.2 km². The average declared income is 23.179 €.
Castel del Rio in numbers: the analysis
Among the 55 municipalities of the province of Bologna, Castel del Rio ranks 55 by population.
The census record tells a story of long decline: in 1951 Castel del Rio had 2,831 inhabitants; today (2026) it has 1,224 — 56.8% fewer.
The ageing index is one of the starkest signals: in Castel del Rio there are 317 residents over 65 for every 100 under 14, well above the national average.
For 2050 the projections point to an essentially unchanged population: about 1,214 inhabitants.
Compared with the provincial average of Bologna (about 18,623 residents per municipality), Castel del Rio is a markedly smaller centre.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 1227 |
| 2020 | 1213 |
| 2021 | 1189 |
| 2022 | 1186 |
| 2023 | 1209 |
| 2024 | 1214 |
| 2025 | 1214 |
| 2026 | 1224 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 597 | 48.8% |
| Women | 627 | 51.2% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 3 |
| 2022 | 7 |
| 2023 | 7 |
| 2024 | 5 |
| 2025 | 9 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 2831 |
| 1961 | 2010 |
| 1971 | 1331 |
| 1981 | 1153 |
| 1991 | 1095 |
| 2001 | 1252 |
| 2011 | 1230 |
| 2019 | 1227 |
| 2020 | 1213 |
| 2021 | 1189 |
| 2022 | 1186 |
| 2023 | 1209 |
| 2024 | 1214 |
| 2025 | 1214 |
| 2026 | 1224 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 1064 | 43.8% |
| Married | 1002 | 41.3% |
| Divorced | 122 | 5.0% |
| Widowed | 240 | 9.9% |
School-Age Population (2026)
Total 0-18 years: 157
| Valore | |
|---|---|
| Nido (0-2) | 20 |
| Infanzia (3-5) | 15 |
| Primaria (6-10) | 41 |
| Medie (11-13) | 29 |
| Superiori (14-18) | 52 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Castel del Rio population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/castel-del-rio-037014" title="Population pyramid of Castel del Rio — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/castel-del-rio-037014" alt="Population pyramid of Castel del Rio — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>