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Population & demographics
All demographic data for Treviolo: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Treviolo.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Treviolo.
Treviolo is a medium-sized municipality in the province of Bergamo, Lombardia region. With a population of 10.923 inhabitants and a density of 1291 per km², it covers an area of 8.5 km². The average declared income is 30.372 €.
Treviolo in numbers: the analysis
The generational balance is in line with the norm: the ageing index of Treviolo is 183 (over-65s per 100 under-14s).
Looking ahead to 2050, projections give Treviolo about 11,600 inhabitants, up 6.2% from today.
The average municipality in the province of Bergamo has about 4,606 residents: Treviolo has 2.4 times as many.
By population, Treviolo ranks no. 15 among the 243 municipalities of the province of Bergamo.
Treviolo has grown substantially since 1951: from 5,500 inhabitants then to 10,923 in 2026, an increase of 98.6%.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 10.733 |
| 2020 | 10.771 |
| 2021 | 10.819 |
| 2022 | 10.857 |
| 2023 | 10.795 |
| 2024 | 10.823 |
| 2025 | 10.870 |
| 2026 | 10.923 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 5321 | 48.7% |
| Women | 5602 | 51.3% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 87 |
| 2022 | 63 |
| 2023 | 49 |
| 2024 | 72 |
| 2025 | 59 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 5500 |
| 1961 | 5557 |
| 1971 | 6084 |
| 1981 | 6697 |
| 1991 | 7752 |
| 2001 | 8618 |
| 2011 | 10.302 |
| 2019 | 10.733 |
| 2020 | 10.771 |
| 2021 | 10.819 |
| 2022 | 10.857 |
| 2023 | 10.795 |
| 2024 | 10.823 |
| 2025 | 10.870 |
| 2026 | 10.923 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 9642 | 44.4% |
| Married | 9844 | 45.3% |
| Divorced | 742 | 3.4% |
| Widowed | 1512 | 7.0% |
School-Age Population (2026)
Total 0-18 years: 1816
| Valore | |
|---|---|
| Nido (0-2) | 195 |
| Infanzia (3-5) | 251 |
| Primaria (6-10) | 433 |
| Medie (11-13) | 329 |
| Superiori (14-18) | 608 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Treviolo population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/treviolo-016220" title="Population pyramid of Treviolo — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/treviolo-016220" alt="Population pyramid of Treviolo — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>