Explore related data
Jump from local statistics to linked rankings and territorial pages.
Region page
Open the full profile page for Sardegna.
Province page
Open the full profile page for the province of Oristano.
Income overview
Explore the income map and the municipalities with the highest and lowest values.
Regional income ranking
View the municipalities in Sardegna ranked by average income.
Provincial population ranking
View the municipalities in the province of Oristano ranked by population.
Compare this municipality
Open the comparison page with this municipality preselected.
Population & demographics
All demographic data for Siris: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Siris.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Siris.
Siris is a small municipality in the province of Oristano, Sardegna region. With a population of 227 inhabitants and a density of 38 per km², it covers an area of 6 km². The average declared income is 13.310 €.
Siris in numbers: the analysis
The census record tells a story of long decline: in 1951 Siris had 267 inhabitants; today (2026) it has 227 — 15% fewer.
The ageing index is one of the starkest signals: in Siris there are 411 residents over 65 for every 100 under 14, well above the national average.
For 2050 the projections point to an essentially unchanged population: about 230 inhabitants.
Compared with the provincial average of Oristano (about 1,687 residents per municipality), Siris is a markedly smaller centre.
Among the 87 municipalities of the province of Oristano, Siris ranks 77 by population.
Population Trend
Male/Female Ratio
Demographic Statistics
Demographic Indices
Births (recent years)
Historical Population (1951-present)
Marital Status (2025)
School-Age Population (2026)
Total 0-18 years: 26
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Siris population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/siris-095061" title="Population pyramid of Siris — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/siris-095061" alt="Population pyramid of Siris — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>