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Population & demographics
All demographic data for Fossa: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Fossa.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Fossa.
Fossa is a small municipality in the province of L'Aquila, Abruzzo region. With a population of 682 inhabitants and a density of 76 per km², it covers an area of 9.0 km². The average declared income is 23.418 €.
Fossa in numbers: the analysis
Among the 108 municipalities of the province of L'Aquila, Fossa ranks 64 by population.
The census record tells a story of long decline: in 1951 Fossa had 1,210 inhabitants; today (2026) it has 682 — 43.6% fewer.
The generational balance is in line with the norm: the ageing index of Fossa is 228 (over-65s per 100 under-14s).
Demographic projections to 2050 estimate about 574 inhabitants for Fossa: an expected decline of 15.8% from today.
Compared with the provincial average of L'Aquila (about 2,655 residents per municipality), Fossa is a markedly smaller centre.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 717 |
| 2020 | 697 |
| 2021 | 695 |
| 2022 | 698 |
| 2023 | 672 |
| 2024 | 658 |
| 2025 | 669 |
| 2026 | 682 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 336 | 49.3% |
| Women | 346 | 50.7% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 3 |
| 2022 | 5 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 7 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 1210 |
| 1961 | 896 |
| 1971 | 709 |
| 1981 | 652 |
| 1991 | 630 |
| 2001 | 661 |
| 2011 | 690 |
| 2019 | 717 |
| 2020 | 697 |
| 2021 | 695 |
| 2022 | 698 |
| 2023 | 672 |
| 2024 | 658 |
| 2025 | 669 |
| 2026 | 682 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 612 | 45.7% |
| Married | 604 | 45.1% |
| Divorced | 32 | 2.4% |
| Widowed | 90 | 6.7% |
School-Age Population (2026)
Total 0-18 years: 96
| Valore | |
|---|---|
| Nido (0-2) | 14 |
| Infanzia (3-5) | 10 |
| Primaria (6-10) | 31 |
| Medie (11-13) | 17 |
| Superiori (14-18) | 24 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Fossa population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/fossa-066044" title="Population pyramid of Fossa — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/fossa-066044" alt="Population pyramid of Fossa — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>