Sezzadio: 1185 inhabitants (2026)
ISTAT Code: 006161
44.7856°N, 8.5727°E
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Population & demographics
All demographic data for Sezzadio: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Sezzadio.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Sezzadio.
Sezzadio is a small municipality in the province of Alessandria, Piemonte region. With a population of 1185 inhabitants and a density of 33 per km², it covers an area of 35.7 km². The average declared income is 22.527 €.
Sezzadio in numbers: the analysis
Compared with the provincial average of Alessandria (about 2,182 residents per municipality), Sezzadio is a markedly smaller centre.
Among the 187 municipalities of the province of Alessandria, Sezzadio ranks 64 by population.
The census record tells a story of long decline: in 1951 Sezzadio had 2,371 inhabitants; today (2026) it has 1,185 — 50% fewer.
The ageing index is one of the starkest signals: in Sezzadio there are 351 residents over 65 for every 100 under 14, well above the national average.
Demographic projections to 2050 estimate about 1,023 inhabitants for Sezzadio: an expected decline of 13.7% from today.
Population Trend
| Anno | Popolazione |
|---|---|
| 2019 | 1237 |
| 2020 | 1239 |
| 2021 | 1205 |
| 2022 | 1174 |
| 2023 | 1153 |
| 2024 | 1174 |
| 2025 | 1179 |
| 2026 | 1185 |
Male/Female Ratio
| Valore | % | |
|---|---|---|
| Men | 590 | 49.8% |
| Women | 595 | 50.2% |
Demographic Statistics
Demographic Indices
Births (recent years)
| Valore | |
|---|---|
| 2021 | 6 |
| 2022 | 6 |
| 2023 | 8 |
| 2024 | 7 |
| 2025 | 5 |
Historical Population (1951-present)
| Anno | Population |
|---|---|
| 1951 | 2371 |
| 1961 | 1942 |
| 1971 | 1751 |
| 1981 | 1623 |
| 1991 | 1445 |
| 2001 | 1291 |
| 2011 | 1294 |
| 2019 | 1237 |
| 2020 | 1239 |
| 2021 | 1205 |
| 2022 | 1174 |
| 2023 | 1153 |
| 2024 | 1174 |
| 2025 | 1179 |
| 2026 | 1185 |
Marital Status (2025)
| Valore | % | |
|---|---|---|
| Single | 992 | 42.1% |
| Married | 1008 | 42.7% |
| Divorced | 122 | 5.2% |
| Widowed | 236 | 10.0% |
School-Age Population (2026)
Total 0-18 years: 152
| Valore | |
|---|---|
| Nido (0-2) | 20 |
| Infanzia (3-5) | 17 |
| Primaria (6-10) | 40 |
| Medie (11-13) | 20 |
| Superiori (14-18) | 55 |
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Sezzadio population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/sezzadio-006161" title="Population pyramid of Sezzadio — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/sezzadio-006161" alt="Population pyramid of Sezzadio — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>