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  1. Home
  2. Lazio
  3. Roma
  4. Castel Gandolfo

Castel Gandolfo is a medium-sized municipality in the province of Roma, Lazio region. With a population of 8536 inhabitants and a density of 602 per km², it covers an area of 14.2 km². The average declared income is 24.855 €.

LazioRoma

Castel Gandolfo

ISTAT Code: 058022

41.7468°N, 12.6505°E

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8.5k
Inhabitants
602
Inhabitants/km²
24.855 €
Average Income
13.79 µg/m³
PM2.5
11,6%
Land Consumption
14.2 km²
Area

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Population Trend

Male/Female Ratio

8536Totale
Men
Women

Demographic Statistics

Men4023
Women4513
Year2026

Demographic Indices

-0.08%
Annual change
change from the previous year
219.3
Ageing index
65+ / 0-14 × 100
52
Dependency ratio
(0-14 + 65+) / 15-64 × 100
161.1
Workforce replacement
60-64 / 15-19 × 100
142.1
Workforce structure
40-64 / 15-39 × 100
13.2
Child dependency
0-4 / women 15-49 × 100
46.47
Average age
weighted average age

Births (recent years)

Historical Population (1951-present)

Marital Status (2025)

17.086Totale
Single
Married
Divorced
Widowed

School-Age Population (2026)

Total 0-18 years: 1268

Foreign residents

Foreign presence and top citizenships

Main citizenships
Foreign residents
915
Foreign-resident share: 10.71%
Main citizenships
Romania406
Egitto30
Polonia30
Moldova29
Albania28

Municipalities in the same province

Affile

Roma, Lazio

Agosta

Roma, Lazio

Albano Laziale

Roma, Lazio

Allumiere

Roma, Lazio

Anguillara Sabazia

Roma, Lazio

Municipalities in the same region

Accumoli

Rieti, Lazio

Acquafondata

Frosinone, Lazio

Acquapendente

Viterbo, Lazio

Acuto

Frosinone, Lazio

Affile

Roma, Lazio

Agosta

Roma, Lazio

Municipalities with similar population

San Felice Circeo

10.146 · Latina, Lazio

Rignano Flaminio

10.083 · Roma, Lazio

Fiuggi

10.079 · Frosinone, Lazio

Sermoneta

9.994 · Latina, Lazio

Nepi

9.467 · Viterbo, Lazio

Orte

9.087 · Viterbo, Lazio

Source: ISTAT 2025, MEF 2023, ISPRA 2024, EEA 2022 · Year: 2025