Montresta is a small municipality in the province of Oristano, Sardegna region. With a population of 434 inhabitants and a density of 14 per km², it covers an area of 31.2 km². The average declared income is 15.094 €.
Montresta in numbers: the analysis
Among the 87 municipalities of the province of Oristano, Montresta ranks 57 by population.
Compared with the provincial average of Oristano (about 1,687 residents per municipality), Montresta is a markedly smaller centre.
Demographic projections to 2050 estimate about 361 inhabitants for Montresta: an expected decline of 16.8% from today.
The ageing index is one of the starkest signals: in Montresta there are 385 residents over 65 for every 100 under 14, well above the national average.
The census record tells a story of long decline: in 1951 Montresta had 1,469 inhabitants; today (2026) it has 434 — 70.5% fewer.
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Population & demographics
All demographic data for Montresta: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Montresta.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Montresta.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 458 |
| 2020 | 455 |
| 2021 | 445 |
| 2022 | 440 |
| 2023 | 438 |
| 2024 | 443 |
| 2025 | 435 |
| 2026 | 434 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 218 | 50.2% |
| Women | 216 | 49.8% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 4 |
| 2025 | 1 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 1469 |
| 1961 | 1389 |
| 1971 | 1130 |
| 1981 | 982 |
| 1991 | 802 |
| 2001 | 650 |
| 2011 | 535 |
| 2019 | 458 |
| 2020 | 455 |
| 2021 | 445 |
| 2022 | 440 |
| 2023 | 438 |
| 2024 | 443 |
| 2025 | 435 |
| 2026 | 434 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 332 | 38.2% |
| Married | 398 | 45.7% |
| Divorced | 18 | 2.1% |
| Widowed | 122 | 14.0% |
School-Age Population (2026)
Total 0-18 years: 58
| Valore | |
|---|---|
| Nido (0-2) | 7 |
| Infanzia (3-5) | 7 |
| Primaria (6-10) | 15 |
| Medie (11-13) | 5 |
| Superiori (14-18) | 24 |
Foreign residents
Foreign presence and top citizenships