Ploaghe is a small municipality in the province of Sassari, Sardegna region. With a population of 4201 inhabitants and a density of 44 per km², it covers an area of 96.3 km². The average declared income is 20.994 €.
Ploaghe in numbers: the analysis
Among the 92 municipalities of the province of Sassari, Ploaghe ranks 19 by population.
The census record tells a story of long decline: in 1951 Ploaghe had 4,972 inhabitants; today (2026) it has 4,201 — 15.5% fewer.
The ageing index is one of the starkest signals: in Ploaghe there are 261 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 3,411 inhabitants for Ploaghe: an expected decline of 18.8% from today.
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Population & demographics
All demographic data for Ploaghe: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Ploaghe.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Ploaghe.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 4464 |
| 2020 | 4427 |
| 2021 | 4383 |
| 2022 | 4350 |
| 2023 | 4285 |
| 2024 | 4242 |
| 2025 | 4222 |
| 2026 | 4201 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 2093 | 49.8% |
| Women | 2108 | 50.2% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 27 |
| 2022 | 19 |
| 2023 | 19 |
| 2024 | 31 |
| 2025 | 27 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 4972 |
| 1961 | 4952 |
| 1971 | 4520 |
| 1981 | 4676 |
| 1991 | 4861 |
| 2001 | 4816 |
| 2011 | 4653 |
| 2019 | 4464 |
| 2020 | 4427 |
| 2021 | 4383 |
| 2022 | 4350 |
| 2023 | 4285 |
| 2024 | 4242 |
| 2025 | 4222 |
| 2026 | 4201 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 3840 | 45.5% |
| Married | 3710 | 43.9% |
| Divorced | 238 | 2.8% |
| Widowed | 656 | 7.8% |
School-Age Population (2026)
Total 0-18 years: 628
| Valore | |
|---|---|
| Nido (0-2) | 77 |
| Infanzia (3-5) | 80 |
| Primaria (6-10) | 169 |
| Medie (11-13) | 103 |
| Superiori (14-18) | 199 |
Foreign residents
Foreign presence and top citizenships