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Grottaferrata is a medium-sized municipality in the province of Roma, Lazio region. With a population of 20.345 inhabitants and a density of 1118 per km², it covers an area of 18.2 km². The average declared income is 32.150 €.

Grottaferrata in numbers: the analysis

Among the 121 municipalities of the province of Roma, Grottaferrata ranks 23 by population.

Grottaferrata has grown substantially since 1951: from 6,701 inhabitants then to 20,345 in 2026, an increase of 203.6%.

The generational balance is in line with the norm: the ageing index of Grottaferrata is 230 (over-65s per 100 under-14s).

For 2050 the projections point to an essentially unchanged population: about 21,306 inhabitants.

Compared with the provincial average of Roma (about 34,917 residents per municipality), Grottaferrata is a markedly smaller centre.

Population Trend

Grafico a linee
AnnoPopolazione
201920.073
202020.067
202120.337
202220.455
202320.456
202420.356
202520.307
202620.345

Male/Female Ratio

Grafico a ciambella
Valore%
Men955847.0%
Women10.78753.0%

Demographic Statistics

Men9558
Women10.787
Year2026

Demographic Indices

+0.19%
Annual change
change from the previous year
230
Ageing index
65+ / 0-14 × 100
60
Dependency ratio
(0-14 + 65+) / 15-64 × 100
150.5
Workforce replacement
60-64 / 15-19 × 100
152.6
Workforce structure
40-64 / 15-39 × 100
15
Child dependency
0-4 / women 15-49 × 100
47.39
Average age
weighted average age

Births (recent years)

Grafico a barre
Valore
2021103
202297
2023120
2024105
202591

Historical Population (1951-present)

Grafico a linee
AnnoPopulation
19516701
19618549
197111.361
198114.829
199116.361
200117.663
201119.156
201920.073
202020.067
202120.337
202220.455
202320.456
202420.356
202520.307
202620.345

Marital Status (2025)

Grafico a ciambella
Valore%
Single18.67846.0%
Married17.79043.8%
Divorced15083.7%
Widowed26026.4%

School-Age Population (2026)

Total 0-18 years: 3187

Grafico a barre
Valore
Nido (0-2)339
Infanzia (3-5)386
Primaria (6-10)799
Medie (11-13)587
Superiori (14-18)1076

Foreign residents

Foreign presence and top citizenships

Main citizenships
Foreign residents
1536
Foreign-resident share: 7.56%
Main citizenships
Romania372
Ucraina112
Albania95
Perù78
Filippine67

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Use the Grottaferrata population pyramid on your site or article — the DatiItalia source link is already included.

Population pyramid of Grottaferrata — DatiItalia
<a href="https://datitalia.eu/comune/grottaferrata-058046" title="Population pyramid of Grottaferrata — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/grottaferrata-058046" alt="Population pyramid of Grottaferrata — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>
Source: ISTAT, MEF, ISPRA, EEA · Year: 2025 · updated Jun 28, 2026

Altri dati e servizi a Grottaferrata