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Population & demographics
All demographic data for Trezzone: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Trezzone.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Trezzone.
Trezzone is a small municipality in the province of Como, Lombardia region. With a population of 231 inhabitants and a density of 59 per km², it covers an area of 3,9 km². The average declared income is 24.598 €.
Trezzone in numbers: the analysis
The generational balance is in line with the norm: the ageing index of Trezzone is 197 (over-65s per 100 under-14s).
For 2050 the projections point to an essentially unchanged population: about 231 inhabitants.
Compared with the provincial average of Como (about 4,072 residents per municipality), Trezzone is a markedly smaller centre.
Among the 147 municipalities of the province of Como, Trezzone ranks 138 by population.
Over the long run the population of Trezzone has stayed essentially stable: 226 inhabitants in 1951, 231 in 2026 (less than 5% change).
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: 43
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Trezzone population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/trezzone-013226" title="Population pyramid of Trezzone — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/trezzone-013226" alt="Population pyramid of Trezzone — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>