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Population & demographics
All demographic data for Castana: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Castana.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Castana.
Castana is a small municipality in the province of Pavia, Lombardia region. With a population of 707 inhabitants and a density of 138 per km², it covers an area of 5.1 km². The average declared income is 23.084 €.
Castana in numbers: the analysis
The ageing index is one of the starkest signals: in Castana there are 424 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 607 inhabitants for Castana: an expected decline of 14.1% from today.
Compared with the provincial average of Pavia (about 2,951 residents per municipality), Castana is a markedly smaller centre.
Among the 185 municipalities of the province of Pavia, Castana ranks 129 by population.
The census record tells a story of long decline: in 1951 Castana had 1,289 inhabitants; today (2026) it has 707 — 45.2% fewer.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 739 |
| 2020 | 726 |
| 2021 | 721 |
| 2022 | 710 |
| 2023 | 725 |
| 2024 | 717 |
| 2025 | 700 |
| 2026 | 707 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 343 | 48.5% |
| Women | 364 | 51.5% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 3 |
| 2022 | 6 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 3 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 1289 |
| 1961 | 1185 |
| 1971 | 949 |
| 1981 | 811 |
| 1991 | 771 |
| 2001 | 754 |
| 2011 | 744 |
| 2019 | 739 |
| 2020 | 726 |
| 2021 | 721 |
| 2022 | 710 |
| 2023 | 725 |
| 2024 | 717 |
| 2025 | 700 |
| 2026 | 707 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 536 | 38.3% |
| Married | 640 | 45.7% |
| Divorced | 78 | 5.6% |
| Widowed | 146 | 10.4% |
School-Age Population (2026)
Total 0-18 years: 78
| Valore | |
|---|---|
| Nido (0-2) | 9 |
| Infanzia (3-5) | 8 |
| Primaria (6-10) | 25 |
| Medie (11-13) | 10 |
| Superiori (14-18) | 26 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Castana population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/castana-018036" title="Population pyramid of Castana — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/castana-018036" alt="Population pyramid of Castana — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>