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Population & demographics
All demographic data for Costa Serina: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Costa Serina.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Costa Serina.
Costa Serina is a small municipality in the province of Bergamo, Lombardia region. With a population of 910 inhabitants and a density of 75 per km², it covers an area of 12.2 km². The average declared income is 23.193 €.
Costa Serina in numbers: the analysis
Compared with the provincial average of Bergamo (about 4,606 residents per municipality), Costa Serina is a markedly smaller centre.
Among the 243 municipalities of the province of Bergamo, Costa Serina ranks 195 by population.
The census record tells a story of long decline: in 1951 Costa Serina had 1,560 inhabitants; today (2026) it has 910 — 41.7% fewer.
The ageing index is one of the starkest signals: in Costa Serina there are 377 residents over 65 for every 100 under 14, well above the national average.
For 2050 the projections point to an essentially unchanged population: about 924 inhabitants.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 906 |
| 2020 | 904 |
| 2021 | 874 |
| 2022 | 866 |
| 2023 | 878 |
| 2024 | 894 |
| 2025 | 900 |
| 2026 | 910 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 479 | 52.6% |
| Women | 431 | 47.4% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 3 |
| 2022 | 8 |
| 2023 | 5 |
| 2024 | 3 |
| 2025 | 3 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 1560 |
| 1961 | 1348 |
| 1971 | 993 |
| 1981 | 911 |
| 1991 | 888 |
| 2001 | 914 |
| 2011 | 973 |
| 2019 | 906 |
| 2020 | 904 |
| 2021 | 874 |
| 2022 | 866 |
| 2023 | 878 |
| 2024 | 894 |
| 2025 | 900 |
| 2026 | 910 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 716 | 39.8% |
| Married | 864 | 48.0% |
| Divorced | 76 | 4.2% |
| Widowed | 144 | 8.0% |
School-Age Population (2026)
Total 0-18 years: 108
| Valore | |
|---|---|
| Nido (0-2) | 12 |
| Infanzia (3-5) | 19 |
| Primaria (6-10) | 25 |
| Medie (11-13) | 17 |
| Superiori (14-18) | 35 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Costa Serina population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/costa-serina-016247" title="Population pyramid of Costa Serina — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/costa-serina-016247" alt="Population pyramid of Costa Serina — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>