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Population & demographics
All demographic data for Tergu: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Tergu.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Tergu.
Tergu is a small municipality in the province of Sassari, Sardegna region. With a population of 612 inhabitants and a density of 17 per km², it covers an area of 36,9 km². The average declared income is 16.037 €.
Tergu in numbers: the analysis
Among the 92 municipalities of the province of Sassari, Tergu ranks 76 by population.
The census record tells a story of long decline: in 1951 Tergu had 654 inhabitants; today (2026) it has 612 — 6.4% fewer.
The ageing index is one of the starkest signals: in Tergu there are 259 residents over 65 for every 100 under 14, well above the national average.
For 2050 the projections point to an essentially unchanged population: about 626 inhabitants.
Compared with the provincial average of Sassari (about 5,115 residents per municipality), Tergu is a markedly smaller centre.
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: 80
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Tergu population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/tergu-090086" title="Population pyramid of Tergu — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/tergu-090086" alt="Population pyramid of Tergu — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>