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Population & demographics
All demographic data for Sennariolo: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Sennariolo.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Sennariolo.
Sennariolo is a small municipality in the province of Oristano, Sardegna region. With a population of 153 inhabitants and a density of 10 per km², it covers an area of 15.6 km². The average declared income is 14.578 €.
Sennariolo in numbers: the analysis
Among the 87 municipalities of the province of Oristano, Sennariolo ranks 82 by population.
The census record tells a story of long decline: in 1951 Sennariolo had 415 inhabitants; today (2026) it has 153 — 63.1% fewer.
The ageing index is one of the starkest signals: in Sennariolo there are 622 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 89 inhabitants for Sennariolo: an expected decline of 41.8% from today.
Compared with the provincial average of Oristano (about 1,687 residents per municipality), Sennariolo is a markedly smaller centre.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 179 |
| 2020 | 162 |
| 2021 | 159 |
| 2022 | 155 |
| 2023 | 156 |
| 2024 | 153 |
| 2025 | 154 |
| 2026 | 153 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 77 | 50.3% |
| Women | 76 | 49.7% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 0 |
| 2022 | 3 |
| 2023 | 0 |
| 2024 | 2 |
| 2025 | 0 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 415 |
| 1961 | 356 |
| 1971 | 261 |
| 1981 | 272 |
| 1991 | 204 |
| 2001 | 173 |
| 2011 | 183 |
| 2019 | 179 |
| 2020 | 162 |
| 2021 | 159 |
| 2022 | 155 |
| 2023 | 156 |
| 2024 | 153 |
| 2025 | 154 |
| 2026 | 153 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 134 | 43.5% |
| Married | 120 | 39.0% |
| Divorced | 14 | 4.5% |
| Widowed | 40 | 13.0% |
School-Age Population (2026)
Total 0-18 years: 15
| Valore | |
|---|---|
| Nido (0-2) | 2 |
| Infanzia (3-5) | 3 |
| Primaria (6-10) | 4 |
| Medie (11-13) | 0 |
| Superiori (14-18) | 6 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Sennariolo population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/sennariolo-095055" title="Population pyramid of Sennariolo — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/sennariolo-095055" alt="Population pyramid of Sennariolo — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>