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Population & demographics
All demographic data for Tarzo: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Tarzo.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Tarzo.
Tarzo is a small municipality in the province of Treviso, Veneto region. With a population of 4119 inhabitants and a density of 175 per km², it covers an area of 23.6 km². The average declared income is 22.065 €.
Tarzo in numbers: the analysis
The ageing index is one of the starkest signals: in Tarzo there are 302 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 3,482 inhabitants for Tarzo: an expected decline of 15.5% from today.
Compared with the provincial average of Treviso (about 9,344 residents per municipality), Tarzo is a markedly smaller centre.
Among the 94 municipalities of the province of Treviso, Tarzo ranks 72 by population.
The census record tells a story of long decline: in 1951 Tarzo had 4,768 inhabitants; today (2026) it has 4,119 — 13.6% fewer.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 4326 |
| 2020 | 4262 |
| 2021 | 4228 |
| 2022 | 4226 |
| 2023 | 4190 |
| 2024 | 4160 |
| 2025 | 4151 |
| 2026 | 4119 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 2036 | 49.4% |
| Women | 2083 | 50.6% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 29 |
| 2022 | 22 |
| 2023 | 16 |
| 2024 | 19 |
| 2025 | 22 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 4768 |
| 1961 | 4253 |
| 1971 | 4276 |
| 1981 | 4321 |
| 1991 | 4382 |
| 2001 | 4537 |
| 2011 | 4583 |
| 2019 | 4326 |
| 2020 | 4262 |
| 2021 | 4228 |
| 2022 | 4226 |
| 2023 | 4190 |
| 2024 | 4160 |
| 2025 | 4151 |
| 2026 | 4119 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 3606 | 43.4% |
| Married | 3570 | 43.0% |
| Divorced | 378 | 4.6% |
| Widowed | 748 | 9.0% |
School-Age Population (2026)
Total 0-18 years: 563
| Valore | |
|---|---|
| Nido (0-2) | 54 |
| Infanzia (3-5) | 80 |
| Primaria (6-10) | 146 |
| Medie (11-13) | 95 |
| Superiori (14-18) | 188 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Tarzo population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/tarzo-026084" title="Population pyramid of Tarzo — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/tarzo-026084" alt="Population pyramid of Tarzo — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>