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Population & demographics
All demographic data for Arce: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Arce.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Arce.
Arce is a medium-sized municipality in the province of Frosinone, Lazio region. With a population of 5376 inhabitants and a density of 136 per km², it covers an area of 39,5 km². The average declared income is 21.758 €.
Arce in numbers: the analysis
Demographic projections to 2050 estimate about 4,761 inhabitants for Arce: an expected decline of 11.4% from today.
Among the 91 municipalities of the province of Frosinone, Arce ranks 21 by population.
The census record tells a story of long decline: in 1951 Arce had 7,616 inhabitants; today (2026) it has 5,376 — 29.4% fewer.
The ageing index is one of the starkest signals: in Arce there are 275 residents over 65 for every 100 under 14, well above the national average.
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: 725
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Arce population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/arce-060008" title="Population pyramid of Arce — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/arce-060008" alt="Population pyramid of Arce — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>