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Population & demographics
All demographic data for Diano Castello: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Diano Castello.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Diano Castello.
Diano Castello is a small municipality in the province of Imperia, Liguria region. With a population of 2270 inhabitants and a density of 380 per km², it covers an area of 6.0 km². The average declared income is 23.327 €.
Diano Castello in numbers: the analysis
Diano Castello has grown substantially since 1951: from 920 inhabitants then to 2,270 in 2026, an increase of 146.7%.
The generational balance is in line with the norm: the ageing index of Diano Castello is 229 (over-65s per 100 under-14s).
Looking ahead to 2050, projections give Diano Castello about 2,387 inhabitants, up 5.2% from today.
Among the 66 municipalities of the province of Imperia, Diano Castello ranks 13 by population.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 2237 |
| 2020 | 2240 |
| 2021 | 2266 |
| 2022 | 2260 |
| 2023 | 2259 |
| 2024 | 2236 |
| 2025 | 2221 |
| 2026 | 2270 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 1094 | 48.2% |
| Women | 1176 | 51.8% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 11 |
| 2022 | 11 |
| 2023 | 9 |
| 2024 | 10 |
| 2025 | 9 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 920 |
| 1961 | 1097 |
| 1971 | 1201 |
| 1981 | 1204 |
| 1991 | 1506 |
| 2001 | 1885 |
| 2011 | 2257 |
| 2019 | 2237 |
| 2020 | 2240 |
| 2021 | 2266 |
| 2022 | 2260 |
| 2023 | 2259 |
| 2024 | 2236 |
| 2025 | 2221 |
| 2026 | 2270 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 1838 | 41.4% |
| Married | 2022 | 45.5% |
| Divorced | 236 | 5.3% |
| Widowed | 346 | 7.8% |
School-Age Population (2026)
Total 0-18 years: 319
| Valore | |
|---|---|
| Nido (0-2) | 29 |
| Infanzia (3-5) | 34 |
| Primaria (6-10) | 90 |
| Medie (11-13) | 69 |
| Superiori (14-18) | 97 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Diano Castello population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/diano-castello-008026" title="Population pyramid of Diano Castello — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/diano-castello-008026" alt="Population pyramid of Diano Castello — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>