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Population & demographics
All demographic data for Bulzi: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Bulzi.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Bulzi.
Bulzi is a small municipality in the province of Sassari, Sardegna region. With a population of 507 inhabitants and a density of 23 per km², it covers an area of 21.7 km². The average declared income is 16.015 €.
Bulzi in numbers: the analysis
Looking ahead to 2050, projections give Bulzi about 562 inhabitants, up 10.8% from today.
Compared with the provincial average of Sassari (about 5,115 residents per municipality), Bulzi is a markedly smaller centre.
Among the 92 municipalities of the province of Sassari, Bulzi ranks 82 by population.
The census record tells a story of long decline: in 1951 Bulzi had 850 inhabitants; today (2026) it has 507 — 40.4% fewer.
The ageing index is one of the starkest signals: in Bulzi there are 456 residents over 65 for every 100 under 14, well above the national average.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 492 |
| 2020 | 480 |
| 2021 | 475 |
| 2022 | 470 |
| 2023 | 452 |
| 2024 | 459 |
| 2025 | 488 |
| 2026 | 507 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 262 | 51.7% |
| Women | 245 | 48.3% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 2 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 850 |
| 1961 | 903 |
| 1971 | 809 |
| 1981 | 746 |
| 1991 | 689 |
| 2001 | 634 |
| 2011 | 552 |
| 2019 | 492 |
| 2020 | 480 |
| 2021 | 475 |
| 2022 | 470 |
| 2023 | 452 |
| 2024 | 459 |
| 2025 | 488 |
| 2026 | 507 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 466 | 47.7% |
| Married | 404 | 41.4% |
| Divorced | 8 | 0.8% |
| Widowed | 98 | 10.0% |
School-Age Population (2026)
Total 0-18 years: 51
| Valore | |
|---|---|
| Nido (0-2) | 9 |
| Infanzia (3-5) | 4 |
| Primaria (6-10) | 13 |
| Medie (11-13) | 11 |
| Superiori (14-18) | 14 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Bulzi population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/bulzi-090019" title="Population pyramid of Bulzi — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/bulzi-090019" alt="Population pyramid of Bulzi — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>