Treppo Ligosullo: 654 inhabitants (2026)
ISTAT Code: 030191
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Population & demographics
All demographic data for Treppo Ligosullo: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Treppo Ligosullo.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Treppo Ligosullo.
Treppo Ligosullo is a small municipality in the province of Udine, Friuli-Venezia Giulia region. With a population of 654 inhabitants and a density of 18 per km², it covers an area of 35.4 km². The average declared income is 20.444 €.
Treppo Ligosullo in numbers: the analysis
Compared with the provincial average of Udine (about 3,849 residents per municipality), Treppo Ligosullo is a markedly smaller centre.
Among the 134 municipalities of the province of Udine, Treppo Ligosullo ranks 113 by population.
The census record tells a story of long decline: in 2019 Treppo Ligosullo had 711 inhabitants; today (2026) it has 654 — 8% fewer.
The ageing index is one of the starkest signals: in Treppo Ligosullo there are 353 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 491 inhabitants for Treppo Ligosullo: an expected decline of 24.9% from today.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 711 |
| 2020 | 711 |
| 2021 | 702 |
| 2022 | 682 |
| 2023 | 681 |
| 2024 | 677 |
| 2025 | 661 |
| 2026 | 654 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 337 | 51.5% |
| Women | 317 | 48.5% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 2 |
| 2022 | 6 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 1 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 2019 | 711 |
| 2020 | 711 |
| 2021 | 702 |
| 2022 | 682 |
| 2023 | 681 |
| 2024 | 677 |
| 2025 | 661 |
| 2026 | 654 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 552 | 41.8% |
| Married | 566 | 42.8% |
| Divorced | 68 | 5.1% |
| Widowed | 136 | 10.3% |
School-Age Population (2026)
Total 0-18 years: 86
| Valore | |
|---|---|
| Nido (0-2) | 5 |
| Infanzia (3-5) | 14 |
| Primaria (6-10) | 23 |
| Medie (11-13) | 14 |
| Superiori (14-18) | 30 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Treppo Ligosullo population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/treppo-ligosullo-030191" title="Population pyramid of Treppo Ligosullo — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/treppo-ligosullo-030191" alt="Population pyramid of Treppo Ligosullo — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>