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Population & demographics
All demographic data for Terno d'Isola: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Terno d'Isola.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Terno d'Isola.
Terno d'Isola is a medium-sized municipality in the province of Bergamo, Lombardia region. With a population of 7976 inhabitants and a density of 1922 per km², it covers an area of 4.2 km². The average declared income is 24.570 €.
Terno d'Isola in numbers: the analysis
The generational balance is in line with the norm: the ageing index of Terno d'Isola is 129 (over-65s per 100 under-14s).
For 2050 the projections point to an essentially unchanged population: about 7,810 inhabitants.
The average municipality in the province of Bergamo has about 4,606 residents: Terno d'Isola has 1.7 times as many.
Among the 243 municipalities of the province of Bergamo, Terno d'Isola ranks 35 by population.
Terno d'Isola has grown substantially since 1951: from 2,094 inhabitants then to 7,976 in 2026, an increase of 280.9%.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 8025 |
| 2020 | 8015 |
| 2021 | 8014 |
| 2022 | 8016 |
| 2023 | 8008 |
| 2024 | 8014 |
| 2025 | 7970 |
| 2026 | 7976 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 4026 | 50.5% |
| Women | 3950 | 49.5% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 70 |
| 2022 | 58 |
| 2023 | 59 |
| 2024 | 59 |
| 2025 | 53 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 2094 |
| 1961 | 2360 |
| 1971 | 2789 |
| 1981 | 3213 |
| 1991 | 3471 |
| 2001 | 4995 |
| 2011 | 7665 |
| 2019 | 8025 |
| 2020 | 8015 |
| 2021 | 8014 |
| 2022 | 8016 |
| 2023 | 8008 |
| 2024 | 8014 |
| 2025 | 7970 |
| 2026 | 7976 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 7548 | 47.4% |
| Married | 6926 | 43.5% |
| Divorced | 650 | 4.1% |
| Widowed | 816 | 5.1% |
School-Age Population (2026)
Total 0-18 years: 1459
| Valore | |
|---|---|
| Nido (0-2) | 163 |
| Infanzia (3-5) | 185 |
| Primaria (6-10) | 360 |
| Medie (11-13) | 258 |
| Superiori (14-18) | 493 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Terno d'Isola population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/terno-d-isola-016213" title="Population pyramid of Terno d'Isola — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/terno-d-isola-016213" alt="Population pyramid of Terno d'Isola — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>