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Population & demographics
All demographic data for Thiesi: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Thiesi.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Thiesi.
Thiesi is a small municipality in the province of Sassari, Sardegna region. With a population of 2635 inhabitants and a density of 41 per km², it covers an area of 64.3 km². The average declared income is 20.559 €.
Thiesi in numbers: the analysis
Demographic projections to 2050 estimate about 1,957 inhabitants for Thiesi: an expected decline of 25.7% from today.
Compared with the provincial average of Sassari (about 5,115 residents per municipality), Thiesi is a markedly smaller centre.
Among the 92 municipalities of the province of Sassari, Thiesi ranks 31 by population.
The census record tells a story of long decline: in 1951 Thiesi had 3,455 inhabitants; today (2026) it has 2,635 — 23.7% fewer.
The ageing index is one of the starkest signals: in Thiesi there are 344 residents over 65 for every 100 under 14, well above the national average.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 2874 |
| 2020 | 2850 |
| 2021 | 2826 |
| 2022 | 2814 |
| 2023 | 2777 |
| 2024 | 2715 |
| 2025 | 2662 |
| 2026 | 2635 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 1329 | 50.4% |
| Women | 1306 | 49.6% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 14 |
| 2022 | 10 |
| 2023 | 10 |
| 2024 | 11 |
| 2025 | 13 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 3455 |
| 1961 | 3498 |
| 1971 | 3330 |
| 1981 | 3297 |
| 1991 | 3344 |
| 2001 | 3165 |
| 2011 | 3005 |
| 2019 | 2874 |
| 2020 | 2850 |
| 2021 | 2826 |
| 2022 | 2814 |
| 2023 | 2777 |
| 2024 | 2715 |
| 2025 | 2662 |
| 2026 | 2635 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 2384 | 44.8% |
| Married | 2454 | 46.1% |
| Divorced | 158 | 3.0% |
| Widowed | 328 | 6.2% |
School-Age Population (2026)
Total 0-18 years: 344
| Valore | |
|---|---|
| Nido (0-2) | 36 |
| Infanzia (3-5) | 39 |
| Primaria (6-10) | 88 |
| Medie (11-13) | 58 |
| Superiori (14-18) | 123 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Thiesi population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/thiesi-090071" title="Population pyramid of Thiesi — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/thiesi-090071" alt="Population pyramid of Thiesi — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>