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Population & demographics
All demographic data for Gaiarine: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Gaiarine.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Gaiarine.
Gaiarine is a medium-sized municipality in the province of Treviso, Veneto region. With a population of 5826 inhabitants and a density of 202 per km², it covers an area of 28.8 km². The average declared income is 24.582 €.
Gaiarine in numbers: the analysis
Among the 94 municipalities of the province of Treviso, Gaiarine ranks 57 by population.
The census record tells a story of long decline: in 1951 Gaiarine had 6,213 inhabitants; today (2026) it has 5,826 — 6.2% fewer.
The generational balance is in line with the norm: the ageing index of Gaiarine is 248 (over-65s per 100 under-14s).
Demographic projections to 2050 estimate about 5,374 inhabitants for Gaiarine: an expected decline of 7.8% from today.
Compared with the provincial average of Treviso (about 9,344 residents per municipality), Gaiarine is a markedly smaller centre.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 5965 |
| 2020 | 5991 |
| 2021 | 6021 |
| 2022 | 6025 |
| 2023 | 5959 |
| 2024 | 5910 |
| 2025 | 5942 |
| 2026 | 5826 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 2959 | 50.8% |
| Women | 2867 | 49.2% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 32 |
| 2022 | 31 |
| 2023 | 33 |
| 2024 | 38 |
| 2025 | 39 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 6213 |
| 1961 | 5880 |
| 1971 | 5977 |
| 1981 | 6225 |
| 1991 | 6276 |
| 2001 | 6161 |
| 2011 | 6136 |
| 2019 | 5965 |
| 2020 | 5991 |
| 2021 | 6021 |
| 2022 | 6025 |
| 2023 | 5959 |
| 2024 | 5910 |
| 2025 | 5942 |
| 2026 | 5826 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 4800 | 40.4% |
| Married | 5906 | 49.7% |
| Divorced | 292 | 2.5% |
| Widowed | 886 | 7.5% |
School-Age Population (2026)
Total 0-18 years: 880
| Valore | |
|---|---|
| Nido (0-2) | 115 |
| Infanzia (3-5) | 113 |
| Primaria (6-10) | 229 |
| Medie (11-13) | 169 |
| Superiori (14-18) | 254 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Gaiarine population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/gaiarine-026031" title="Population pyramid of Gaiarine — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/gaiarine-026031" alt="Population pyramid of Gaiarine — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>