Montechiaro d'Acqui: 509 inhabitants (2026)
ISTAT Code: 006106
44.5950°N, 8.3797°E
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Population & demographics
All demographic data for Montechiaro d'Acqui: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Montechiaro d'Acqui.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Montechiaro d'Acqui.
Montechiaro d'Acqui is a small municipality in the province of Alessandria, Piemonte region. With a population of 509 inhabitants and a density of 30 per km², it covers an area of 17.1 km². The average declared income is 22.122 €.
Montechiaro d'Acqui in numbers: the analysis
The ageing index is one of the starkest signals: in Montechiaro d'Acqui there are 308 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 410 inhabitants for Montechiaro d'Acqui: an expected decline of 19.4% from today.
Compared with the provincial average of Alessandria (about 2,182 residents per municipality), Montechiaro d'Acqui is a markedly smaller centre.
Among the 187 municipalities of the province of Alessandria, Montechiaro d'Acqui ranks 116 by population.
The census record tells a story of long decline: in 1951 Montechiaro d'Acqui had 960 inhabitants; today (2026) it has 509 — 47% fewer.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 542 |
| 2020 | 531 |
| 2021 | 513 |
| 2022 | 501 |
| 2023 | 506 |
| 2024 | 507 |
| 2025 | 512 |
| 2026 | 509 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 277 | 54.4% |
| Women | 232 | 45.6% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 2 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 960 |
| 1961 | 847 |
| 1971 | 686 |
| 1981 | 614 |
| 1991 | 585 |
| 2001 | 585 |
| 2011 | 568 |
| 2019 | 542 |
| 2020 | 531 |
| 2021 | 513 |
| 2022 | 501 |
| 2023 | 506 |
| 2024 | 507 |
| 2025 | 512 |
| 2026 | 509 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 406 | 39.6% |
| Married | 480 | 46.9% |
| Divorced | 40 | 3.9% |
| Widowed | 98 | 9.6% |
School-Age Population (2026)
Total 0-18 years: 63
| Valore | |
|---|---|
| Nido (0-2) | 6 |
| Infanzia (3-5) | 6 |
| Primaria (6-10) | 21 |
| Medie (11-13) | 8 |
| Superiori (14-18) | 22 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Montechiaro d'Acqui population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/montechiaro-d-acqui-006106" title="Population pyramid of Montechiaro d'Acqui — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/montechiaro-d-acqui-006106" alt="Population pyramid of Montechiaro d'Acqui — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>