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Population & demographics
All demographic data for Arienzo: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Arienzo.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Arienzo.
Arienzo is a medium-sized municipality in the province of Caserta, Campania region. With a population of 5399 inhabitants and a density of 385 per km², it covers an area of 14 km². The average declared income is 17.177 €.
Arienzo in numbers: the analysis
The generational balance is in line with the norm: the ageing index of Arienzo is 131 (over-65s per 100 under-14s).
Looking ahead to 2050, projections give Arienzo about 5,712 inhabitants, up 5.8% from today.
Compared with the provincial average of Caserta (about 8,745 residents per municipality), Arienzo is a markedly smaller centre.
Among the 104 municipalities of the province of Caserta, Arienzo ranks 53 by population.
Arienzo has grown substantially since 1951: from 4,629 inhabitants then to 5,399 in 2026, an increase of 16.6%.
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: 1031
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Arienzo population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/arienzo-061004" title="Population pyramid of Arienzo — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/arienzo-061004" alt="Population pyramid of Arienzo — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>