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Population & demographics
All demographic data for Belmonte del Sannio: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Belmonte del Sannio.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Belmonte del Sannio.
Belmonte del Sannio is a small municipality in the province of Isernia, Molise region. With a population of 602 inhabitants and a density of 29 per km², it covers an area of 20.8 km². The average declared income is 15.701 €.
Belmonte del Sannio in numbers: the analysis
Demographic projections to 2050 estimate about 347 inhabitants for Belmonte del Sannio: an expected decline of 42.4% from today.
Compared with the provincial average of Isernia (about 1,504 residents per municipality), Belmonte del Sannio is a markedly smaller centre.
Among the 52 municipalities of the province of Isernia, Belmonte del Sannio ranks 32 by population.
The census record tells a story of long decline: in 1951 Belmonte del Sannio had 1,497 inhabitants; today (2026) it has 602 — 59.8% fewer.
The ageing index is one of the starkest signals: in Belmonte del Sannio there are 377 residents over 65 for every 100 under 14, well above the national average.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 707 |
| 2020 | 700 |
| 2021 | 675 |
| 2022 | 646 |
| 2023 | 638 |
| 2024 | 626 |
| 2025 | 610 |
| 2026 | 602 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 287 | 47.7% |
| Women | 315 | 52.3% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 3 |
| 2022 | 6 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 3 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 1497 |
| 1961 | 1537 |
| 1971 | 1346 |
| 1981 | 1188 |
| 1991 | 1048 |
| 2001 | 921 |
| 2011 | 810 |
| 2019 | 707 |
| 2020 | 700 |
| 2021 | 675 |
| 2022 | 646 |
| 2023 | 638 |
| 2024 | 626 |
| 2025 | 610 |
| 2026 | 602 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 474 | 38.9% |
| Married | 538 | 44.1% |
| Divorced | 24 | 2.0% |
| Widowed | 184 | 15.1% |
School-Age Population (2026)
Total 0-18 years: 71
| Valore | |
|---|---|
| Nido (0-2) | 7 |
| Infanzia (3-5) | 11 |
| Primaria (6-10) | 13 |
| Medie (11-13) | 18 |
| Superiori (14-18) | 22 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Belmonte del Sannio population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/belmonte-del-sannio-094004" title="Population pyramid of Belmonte del Sannio — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/belmonte-del-sannio-094004" alt="Population pyramid of Belmonte del Sannio — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>