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Population & demographics
All demographic data for Marzano: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Marzano.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Marzano.
Marzano is a small municipality in the province of Pavia, Lombardia region. With a population of 1804 inhabitants and a density of 194 per km², it covers an area of 9,3 km². The average declared income is 22.866 €.
Marzano in numbers: the analysis
Marzano has grown substantially since 1951: from 1,209 inhabitants then to 1,804 in 2026, an increase of 49.2%.
The generational balance is in line with the norm: the ageing index of Marzano is 136 (over-65s per 100 under-14s).
Looking ahead to 2050, projections give Marzano about 2,414 inhabitants, up 33.8% from today.
Compared with the provincial average of Pavia (about 2,951 residents per municipality), Marzano is a markedly smaller centre.
Among the 185 municipalities of the province of Pavia, Marzano ranks 61 by population.
Population Trend
Male/Female Ratio
Demographic Statistics
Demographic Indices
Births (recent years)
Historical Population (1951-present)
Marital Status (2025)
School-Age Population (2026)
Total 0-18 years: 316
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Marzano population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/marzano-018087" title="Population pyramid of Marzano — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/marzano-018087" alt="Population pyramid of Marzano — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>