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Population & demographics
All demographic data for Castellazzo Novarese: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Castellazzo Novarese.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Castellazzo Novarese.
Castellazzo Novarese is a small municipality in the province of Novara, Piemonte region. With a population of 331 inhabitants and a density of 31 per km², it covers an area of 10,8 km². The average declared income is 22.060 €.
Castellazzo Novarese in numbers: the analysis
Looking ahead to 2050, projections give Castellazzo Novarese about 376 inhabitants, up 13.6% from today.
The generational balance is in line with the norm: the ageing index of Castellazzo Novarese is 122 (over-65s per 100 under-14s).
The census record tells a story of long decline: in 1951 Castellazzo Novarese had 655 inhabitants; today (2026) it has 331 — 49.5% fewer.
Among the 87 municipalities of the province of Novara, Castellazzo Novarese ranks 86 by population.
Compared with the provincial average of Novara (about 4,206 residents per municipality), Castellazzo Novarese is a markedly smaller centre.
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: 66
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Castellazzo Novarese population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/castellazzo-novarese-003042" title="Population pyramid of Castellazzo Novarese — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/castellazzo-novarese-003042" alt="Population pyramid of Castellazzo Novarese — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>