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Population & demographics
All demographic data for Ollastra: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Ollastra.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Ollastra.
Ollastra is a small municipality in the province of Oristano, Sardegna region. With a population of 1067 inhabitants and a density of 51 per km², it covers an area of 20.9 km². The average declared income is 17.326 €.
Ollastra in numbers: the analysis
Compared with the provincial average of Oristano (about 1,687 residents per municipality), Ollastra is a markedly smaller centre.
Among the 87 municipalities of the province of Oristano, Ollastra ranks 36 by population.
The census record tells a story of long decline: in 1951 Ollastra had 1,171 inhabitants; today (2026) it has 1,067 — 8.9% fewer.
The ageing index is one of the starkest signals: in Ollastra there are 327 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 701 inhabitants for Ollastra: an expected decline of 34.3% from today.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 1206 |
| 2020 | 1182 |
| 2021 | 1139 |
| 2022 | 1144 |
| 2023 | 1129 |
| 2024 | 1103 |
| 2025 | 1088 |
| 2026 | 1067 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 536 | 50.2% |
| Women | 531 | 49.8% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 5 |
| 2022 | 7 |
| 2023 | 6 |
| 2024 | 2 |
| 2025 | 4 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 1171 |
| 1961 | 1330 |
| 1971 | 1251 |
| 1981 | 1272 |
| 1991 | 1267 |
| 2001 | 1274 |
| 2011 | 1255 |
| 2019 | 1206 |
| 2020 | 1182 |
| 2021 | 1139 |
| 2022 | 1144 |
| 2023 | 1129 |
| 2024 | 1103 |
| 2025 | 1088 |
| 2026 | 1067 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 950 | 43.7% |
| Married | 990 | 45.5% |
| Divorced | 30 | 1.4% |
| Widowed | 206 | 9.5% |
School-Age Population (2026)
Total 0-18 years: 129
| Valore | |
|---|---|
| Nido (0-2) | 12 |
| Infanzia (3-5) | 25 |
| Primaria (6-10) | 26 |
| Medie (11-13) | 18 |
| Superiori (14-18) | 48 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Ollastra population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/ollastra-095037" title="Population pyramid of Ollastra — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/ollastra-095037" alt="Population pyramid of Ollastra — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>