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Population & demographics
All demographic data for Cave: population, births, deaths, balances and historical trends.
Income & tax data
Average income, median income, income brackets and historical trends for Cave.
Environment & air quality
Air quality (PM2.5, PM10, NO2) and land consumption data for Cave.
Cave is a medium-sized municipality in the province of Roma, Lazio region. With a population of 10.935 inhabitants and a density of 612 per km², it covers an area of 17,9 km². The average declared income is 20.786 €.
Cave in numbers: the analysis
Cave has grown substantially since 1951: from 6,106 inhabitants then to 10,935 in 2026, an increase of 79.1%.
The generational balance is in line with the norm: the ageing index of Cave is 173 (over-65s per 100 under-14s).
Looking ahead to 2050, projections give Cave about 11,612 inhabitants, up 6.2% from today.
Compared with the provincial average of Roma (about 34,917 residents per municipality), Cave is a markedly smaller centre.
Among the 121 municipalities of the province of Roma, Cave ranks 42 by population.
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: 1826
Foreign residents
Foreign presence and top citizenships
Embed this chart
Use the Cave population pyramid on your site or article — the DatiItalia source link is already included.
<a href="https://datitalia.eu/comune/cave-058026" title="Population pyramid of Cave — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/cave-058026" alt="Population pyramid of Cave — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>