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Collegno is a medium-sized municipality in the province of Torino, Piemonte region. With a population of 47.590 inhabitants and a density of 2638 per km², it covers an area of 18.0 km². The average declared income is 26.696 €.

Collegno in numbers: the analysis

Collegno is among Italy's major centres: the country's no. 153 municipality by population out of 7896.

The average municipality in the province of Torino has about 7,067 residents: Collegno has 6.7 times as many.

Demographic projections to 2050 estimate about 40,866 inhabitants for Collegno: an expected decline of 14.1% from today.

The ageing index is one of the starkest signals: in Collegno there are 259 residents over 65 for every 100 under 14, well above the national average.

Collegno has grown substantially since 1951: from 13,123 inhabitants then to 47,590 in 2026, an increase of 262.6%.

By population, Collegno ranks no. 3 among the 312 municipalities of the province of Torino.

Few municipalities in Piemonte are larger: it ranks no. 7 by population out of 1180.

Population Trend

Grafico a linee
AnnoPopolazione
201949.752
202049.539
202148.747
202248.574
202348.359
202448.031
202547.814
202647.590

Male/Female Ratio

Grafico a ciambella
Valore%
Men22.72047.7%
Women24.87052.3%

Demographic Statistics

Men22.720
Women24.870
Year2026

Demographic Indices

-0.47%
Annual change
change from the previous year
259
Ageing index
65+ / 0-14 × 100
63.5
Dependency ratio
(0-14 + 65+) / 15-64 × 100
161.5
Workforce replacement
60-64 / 15-19 × 100
149.2
Workforce structure
40-64 / 15-39 × 100
16.3
Child dependency
0-4 / women 15-49 × 100
48.25
Average age
weighted average age

Births (recent years)

Grafico a barre
Valore
2021303
2022304
2023307
2024252
2025255

Historical Population (1951-present)

Grafico a linee
AnnoPopulation
195113.123
196121.282
197141.948
198146.578
199147.161
200146.641
201149.083
201949.752
202049.539
202148.747
202248.574
202348.359
202448.031
202547.814
202647.590

Marital Status (2025)

Grafico a ciambella
Valore%
Single40.22842.1%
Married42.78644.8%
Divorced48565.1%
Widowed76908.0%

School-Age Population (2026)

Total 0-18 years: 6921

Grafico a barre
Valore
Nido (0-2)810
Infanzia (3-5)955
Primaria (6-10)1775
Medie (11-13)1193
Superiori (14-18)2188

Foreign residents

Foreign presence and top citizenships

Main citizenships
Foreign residents
2774
Foreign-resident share: 5.8%
Main citizenships
Romania1328
Marocco210
Cina185
Perù123
Albania117

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

Population pyramid of Collegno — DatiItalia
<a href="https://datitalia.eu/comune/collegno-001090" title="Population pyramid of Collegno — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/collegno-001090" alt="Population pyramid of Collegno — 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 Collegno