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Population & demographics
All demographic data for Acquaviva d'Isernia: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Acquaviva d'Isernia.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Acquaviva d'Isernia.
Acquaviva d'Isernia is a small municipality in the province of Isernia, Molise region. With a population of 346 inhabitants and a density of 25 per km², it covers an area of 13.6 km². The average declared income is 19.372 €.
Acquaviva d'Isernia in numbers: the analysis
The census record tells a story of long decline: in 1951 Acquaviva d'Isernia had 749 inhabitants; today (2026) it has 346 — 53.8% fewer.
The ageing index is one of the starkest signals: in Acquaviva d'Isernia there are 479 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 200 inhabitants for Acquaviva d'Isernia: an expected decline of 42.2% from today.
Compared with the provincial average of Isernia (about 1,504 residents per municipality), Acquaviva d'Isernia is a markedly smaller centre.
Among the 52 municipalities of the province of Isernia, Acquaviva d'Isernia ranks 43 by population.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 406 |
| 2020 | 399 |
| 2021 | 395 |
| 2022 | 377 |
| 2023 | 369 |
| 2024 | 352 |
| 2025 | 347 |
| 2026 | 346 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 183 | 52.9% |
| Women | 163 | 47.1% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 0 |
| 2022 | 0 |
| 2023 | 1 |
| 2024 | 0 |
| 2025 | 0 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 749 |
| 1961 | 703 |
| 1971 | 652 |
| 1981 | 585 |
| 1991 | 531 |
| 2001 | 468 |
| 2011 | 455 |
| 2019 | 406 |
| 2020 | 399 |
| 2021 | 395 |
| 2022 | 377 |
| 2023 | 369 |
| 2024 | 352 |
| 2025 | 347 |
| 2026 | 346 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 292 | 42.1% |
| Married | 330 | 47.6% |
| Divorced | 8 | 1.2% |
| Widowed | 64 | 9.2% |
School-Age Population (2026)
Total 0-18 years: 30
| Valore | |
|---|---|
| Nido (0-2) | 0 |
| Infanzia (3-5) | 2 |
| Primaria (6-10) | 8 |
| Medie (11-13) | 6 |
| Superiori (14-18) | 14 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Acquaviva d'Isernia population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/acquaviva-d-isernia-094001" title="Population pyramid of Acquaviva d'Isernia — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/acquaviva-d-isernia-094001" alt="Population pyramid of Acquaviva d'Isernia — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>