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Population & demographics
All demographic data for Sant'Arpino: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Sant'Arpino.
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Air quality (PM2.5, PM10, NO2) and land consumption data for Sant'Arpino.
Sant'Arpino is a medium-sized municipality in the province of Caserta, Campania region. With a population of 15.567 inhabitants and a density of 4865 per km², it covers an area of 3,2 km². The average declared income is 19.169 €.
Sant'Arpino in numbers: the analysis
Among the 104 municipalities of the province of Caserta, Sant'Arpino ranks 16 by population.
Sant'Arpino has grown substantially since 1951: from 3,909 inhabitants then to 15,567 in 2026, an increase of 298.2%.
Sant'Arpino is demographically young: the ageing index stops at 106 elderly residents per 100 children.
Looking ahead to 2050, projections give Sant'Arpino about 18,469 inhabitants, up 18.6% from today.
The average municipality in the province of Caserta has about 8,745 residents: Sant'Arpino has 1.8 times as many.
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: 3194
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Sant'Arpino population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/sant-arpino-061087" title="Population pyramid of Sant'Arpino — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/sant-arpino-061087" alt="Population pyramid of Sant'Arpino — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>